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MCP23017/MCP23S17
16-Bit I/O Expander with Serial Interface
Features
* 16-bit remote bidirectional I/O port - I/O pins default to input * High-speed I2CTM interface (MCP23017) - 100 kHz - 400 kHz - 1.7 MHz * High-speed SPI interface (MCP23S17) - 10 MHz (max.) * Three hardware address pins to allow up to eight devices on the bus * Configurable interrupt output pins - Configurable as active-high, active-low or open-drain * INTA and INTB can be configured to operate independently or together * Configurable interrupt source - Interrupt-on-change from configured register defaults or pin changes * Polarity Inversion register to configure the polarity of the input port data * External Reset input * Low standby current: 1 A (max.) * Operating voltage: - 1.8V to 5.5V @ -40C to +85C - 2.7V to 5.5V @ -40C to +85C - 4.5V to 5.5V @ -40C to +125C
Package Types
PDIP, SOIC, SSOP
GPB0 GPB1 GPB2 GPB3 GPB4 GPB5 GPB6 GPB7 VDD VSS NC SCL SDA NC *1 2 3 4 5 6 7 8 9 10 11 12 13 14 28 27 26 25 24 23 22 21 20 19 18 17 16 15 GPA7 GPA6 GPA5 GPA4 GPA3 GPA2 GPA1 GPA0 INTA INTB RESET A2 A1 A0
MCP23017
QFN
GPB4 GPB5 GPB6 GPB7 VDD VSS NC 1 2 3 4 5 6 7 28 27 26 25 24 23 22 21 20 19 MCP23017 18 17 16 15 8 9 10 11 121314 SCL SDA NC A0 A1 A2 RESET GPA4 GPA3 GPA2 GPA1 GPA0 INTA INTB
PDIP, SOIC, SSOP
GPB3 GPB2 GPB1 GPB0 GPA7 GPA6 GPA5 *1 2 3 4 5 6 7 8 9 10 11 12 13 14 28 27 26 25 24 23 22 21 20 19 18 17 16 15
MCP23017
Packages
* * * * 28-pin PDIP (300 mil) 28-pin SOIC (300 mil) 28-pin SSOP 28-pin QFN
MCP23S17
GPB0 GPB1 GPB2 GPB3 GPB4 GPB5 GPB6 GPB7 VDD VSS CS SCK SI SO
GPA7 GPA6 GPA5 GPA4 GPA3 GPA2 GPA1 GPA0 INTA INTB RESET A2 A1 A0
QFN
GPB4 GPB5 GPB6 GPB7 VDD VSS CS 1 2 3 4 5 6 7
28 27 26 25 24 23 22 21 20 19 MCP23S17 18 17 16 15 8 9 10 11 121314 SCK SI SO A0 A1 A2 RESET
GPB3 GPB2 GPB1 GPB0 GPA7 GPA6 GPA5
MCP23S17
GPA4 GPA3 GPA2 GPA1 GPA0 INTA INTB
(c) 2007 Microchip Technology Inc.
DS21952B-page 1
MCP23017/MCP23S17
Functional Block Diagram
MCP23S17
CS SCK SI SO SPI
MCP23017
SCL SDA 3 A2:A0 RESET INTA INTB Interrupt Logic 8 GPIO Configuration/ Control Registers Decode Control 16 I2CTM Serializer/ Deserializer GPIO GPB7 GPB6 GPB5 GPB4 GPB3 GPB2 GPB1 GPB0 GPA7 GPA6 GPA5 GPA4 GPA3 GPA2 GPA1 GPA0
DS21952B-page 2
(c) 2007 Microchip Technology Inc.
MCP23017/MCP23S17
1.0 DEVICE OVERVIEW
The MCP23017/MCP23S17 (MCP23X17) device family provides 16-bit, general purpose parallel I/O expansion for I2C bus or SPI applications. The two devices differ only in the serial interface. * MCP23017 - I2C interface * MCP23S17 - SPI interface The MCP23X17 consists of multiple 8-bit configuration registers for input, output and polarity selection. The system master can enable the I/Os as either inputs or outputs by writing the I/O configuration bits (IODIRA/B). The data for each input or output is kept in the corresponding input or output register. The polarity of the Input Port register can be inverted with the Polarity Inversion register. All registers can be read by the system master. The 16-bit I/O port functionally consists of two 8-bit ports (PORTA and PORTB). The MCP23X17 can be configured to operate in the 8-bit or 16-bit modes via IOCON.BANK. There are two interrupt pins, INTA and INTB, that can be associated with their respective ports, or can be logically OR'ed together so that both pins will activate if either port causes an interrupt. The interrupt output can be configured to activate under two conditions (mutually exclusive): 1. When any input state differs from its corresponding Input Port register state. This is used to indicate to the system master that an input state has changed. When an input state differs from a preconfigured register value (DEFVAL register).
2.
The Interrupt Capture register captures port values at the time of the interrupt, thereby saving the condition that caused the interrupt. The Power-on Reset (POR) sets the registers to their default values and initializes the device state machine. The hardware address pins are used to determine the device address.
(c) 2007 Microchip Technology Inc.
DS21952B-page 3
MCP23017/MCP23S17
1.1 Pin Descriptions
PINOUT DESCRIPTION
PDIP/ SOIC/ SSOP 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 QFN 25 26 27 28 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 Pin Type I/O I/O I/O I/O I/O I/O I/O I/O P P I I I/O O I I I I O O I/O I/O I/O I/O I/O I/O I/O I/O Function Bidirectional I/O pin. Can be enabled for interrupt-on-change and/or internal weak pull-up resistor. Bidirectional I/O pin. Can be enabled for interrupt-on-change and/or internal weak pull-up resistor. Bidirectional I/O pin. Can be enabled for interrupt-on-change and/or internal weak pull-up resistor. Bidirectional I/O pin. Can be enabled for interrupt-on-change and/or internal weak pull-up resistor. Bidirectional I/O pin. Can be enabled for interrupt-on-change and/or internal weak pull-up resistor. Bidirectional I/O pin. Can be enabled for interrupt-on-change and/or internal weak pull-up resistor. Bidirectional I/O pin. Can be enabled for interrupt-on-change and/or internal weak pull-up resistor. Bidirectional I/O pin. Can be enabled for interrupt-on-change and/or internal weak pull-up resistor. Power Ground NC (MCP23017), Chip Select (MCP23S17) Serial clock input Serial data I/O (MCP23017), Serial data input (MCP23S17) NC (MCP23017), Serial data out (MCP23S17) Hardware address pin. Must be externally biased. Hardware address pin. Must be externally biased. Hardware address pin. Must be externally biased. Hardware reset. Must be externally biased. Interrupt output for PORTB. Can be configured as active-high, active-low or open-drain. Interrupt output for PORTA. Can be configured as active-high, active-low or open-drain. Bidirectional I/O pin. Can be enabled for interrupt-on-change and/or internal weak pull-up resistor. Bidirectional I/O pin. Can be enabled for interrupt-on-change and/or internal weak pull-up resistor. Bidirectional I/O pin. Can be enabled for interrupt-on-change and/or internal weak pull-up resistor. Bidirectional I/O pin. Can be enabled for interrupt-on-change and/or internal weak pull-up resistor. Bidirectional I/O pin. Can be enabled for interrupt-on-change and/or internal weak pull-up resistor. Bidirectional I/O pin. Can be enabled for interrupt-on-change and/or internal weak pull-up resistor. Bidirectional I/O pin. Can be enabled for interrupt-on-change and/or internal weak pull-up resistor. Bidirectional I/O pin. Can be enabled for interrupt-on-change and/or internal weak pull-up resistor.
TABLE 1-1:
Pin Name GPB0 GPB1 GPB2 GPB3 GPB4 GPB5 GPB6 GPB7 VDD VSS NC/CS SCL/SCK SDA/SI NC/SO A0 A1 A2 RESET INTB INTA GPA0 GPA1 GPA2 GPA3 GPA4 GPA5 GPA6 GPA7
DS21952B-page 4
(c) 2007 Microchip Technology Inc.
MCP23017/MCP23S17
1.2 Power-on Reset (POR)
1.3.1
The on-chip POR circuit holds the device in reset until VDD has reached a high enough voltage to deactivate the POR circuit (i.e., release the device from reset). The maximum VDD rise time is specified in Section 2.0 "Electrical Characteristics". When the device exits the POR condition (releases reset), device operating parameters (i.e., voltage, temperature, serial bus frequency, etc.) must be met to ensure proper operation.
BYTE MODE AND SEQUENTIAL MODE
The MCP23X17 family has the ability to operate in Byte mode or Sequential mode (IOCON.SEQOP). Byte Mode disables automatic Address Pointer incrementing. When operating in Byte mode, the MCP23X17 family does not increment its internal address counter after each byte during the data transfer. This gives the ability to continually access the same address by providing extra clocks (without additional control bytes). This is useful for polling the GPIO register for data changes or for continually writing to the output latches. A special mode (Byte mode with IOCON.BANK = 0) causes the address pointer to toggle between associated A/B register pairs. For example, if the BANK bit is cleared and the Address Pointer is initially set to address 12h (GPIOA) or 13h (GPIOB), the pointer will toggle between GPIOA and GPIOB. Note that the Address Pointer can initially point to either address in the register pair. Sequential mode enables automatic address pointer incrementing. When operating in Sequential mode, the MCP23X17 family increments its address counter after each byte during the data transfer. The Address Pointer automatically rolls over to address 00h after accessing the last register. These two modes are not to be confused with single writes/reads and continuous writes/reads that are serial protocol sequences. For example, the device may be configured for Byte mode and the master may perform a continuous read. In this case, the MCP23X17 would not increment the Address Pointer and would repeatedly drive data from the same location.
1.3
Serial Interface
This block handles the functionality of the I2C (MCP23017) or SPI (MCP23S17) interface protocol. The MCP23X17 contains 22 individual registers (11 register pairs) that can be addressed through the Serial Interface block, as shown in Table 1-2.
TABLE 1-2:
REGISTER ADDRESSES
Access to: IODIRA IODIRB IPOLA IPOLB GPINTENA GPINTENB DEFVALA DEFVALB INTCONA INTCONB IOCON IOCON GPPUA GPPUB INTFA INTFB INTCAPA INTCAPB GPIOA GPIOB OLATA OLATB
Address Address IOCON.BANK = 1 IOCON.BANK = 0 00h 10h 01h 11h 02h 12h 03h 13h 04h 14h 05h 15h 06h 16h 07h 17h 08h 18h 09h 19h 0Ah 1Ah 00h 01h 02h 03h 04h 05h 06h 07h 08h 09h 0Ah 0Bh 0Ch 0Dh 0Eh 0Fh 10h 11h 12h 13h 14h 15h
1.3.2 1.3.2.1
I2C INTERFACE I2C Write Operation
The I2C write operation includes the control byte and register address sequence, as shown in the bottom of Figure 1-1. This sequence is followed by eight bits of data from the master and an Acknowledge (ACK) from the MCP23017. The operation is ended with a Stop (P) or Restart (SR) condition being generated by the master. Data is written to the MCP23017 after every byte transfer. If a Stop or Restart condition is generated during a data transfer, the data will not be written to the MCP23017. Both "byte writes" and "sequential writes" are supported by the MCP23017. If Sequential mode is enabled (IOCON, SEQOP = 0) (default), the MCP23017 increments its address counter after each ACK during the data transfer.
(c) 2007 Microchip Technology Inc.
DS21952B-page 5
MCP23017/MCP23S17
1.3.2.2
2
I2C Read Operation
1.3.3 1.3.3.1
SPI INTERFACE SPI Write Operation
I C Read operations include the control byte sequence, as shown in the bottom of Figure 1-1. This sequence is followed by another control byte (including the Start condition and ACK) with the R/W bit set (R/W = 1). The MCP23017 then transmits the data contained in the addressed register. The sequence is ended with the master generating a Stop or Restart condition.
The SPI write operation is started by lowering CS. The Write command (slave address with R/W bit cleared) is then clocked into the device. The opcode is followed by an address and at least one data byte.
1.3.2.3
I2C Sequential Write/Read
1.3.3.2
SPI Read Operation
For sequential operations (Write or Read), instead of transmitting a Stop or Restart condition after the data transfer, the master clocks the next byte pointed to by the address pointer (see Section 1.3.1 "Byte Mode and Sequential Mode" for details regarding sequential operation control). The sequence ends with the master sending a Stop or Restart condition. The MCP23017 Address Pointer will roll over to address zero after reaching the last register address. Refer to Figure 1-1.
The SPI read operation is started by lowering CS. The SPI read command (slave address with R/W bit set) is then clocked into the device. The opcode is followed by an address, with at least one data byte being clocked out of the device.
1.3.3.3
SPI Sequential Write/Read
For sequential operations, instead of deselecting the device by raising CS, the master clocks the next byte pointed to by the Address Pointer. (see Section 1.3.1 "Byte Mode and Sequential Mode" for details regarding sequential operation control). The sequence ends by the raising of CS. The MCP23S17 Address Pointer will roll over to address zero after reaching the last register address.
DS21952B-page 6
(c) 2007 Microchip Technology Inc.
MCP23017/MCP23S17
FIGURE 1-1:
S - Start SR - Restart P - Stop w - Write SR SR P OP OP R W DOUT .... DIN .... DOUT DIN P P S OP W ADDR DIN .... DIN P
MCP23017 I2CTM DEVICE PROTOCOL
R - Read OP ADDR DOUT DIN - Device opcode - Device register address - Data out from MCP23017 - Data in to MCP23017
S
OP
R
DOUT
....
DOUT
P
SR
OP
R
DOUT
.... ....
DOUT
P
SR
OP P
W
ADDR
DIN
DIN
P
Byte and Sequential Write Byte Sequential S S OP OP W ADDR DIN DIN .... P DIN P
W ADDR
Byte and Sequential Read Byte S Sequential S
OP
OP
W
W
SR
SR
OP
OP
R
R
DOUT
DOUT
P
.... DOUT P
(c) 2007 Microchip Technology Inc.
DS21952B-page 7
MCP23017/MCP23S17
1.4 Hardware Address Decoder
FIGURE 1-2:
The hardware address pins are used to determine the device address. To address a device, the corresponding address bits in the control byte must match the pin state. The pins must be biased externally.
I2CTM CONTROL BYTE FORMAT
Control Byte
S
0
1
0
0
A2 A1 A0 R/W ACK
1.4.1
ADDRESSING I2C DEVICES (MCP23017)
Slave Address Start bit R/W = 0 = write R/W = 1 = read R/W bit ACK bit
The MCP23017 is a slave I2C interface device that supports 7-bit slave addressing, with the read/write bit filling out the control byte. The slave address contains four fixed bits and three user-defined hardware address bits (pins A2, A1 and A0). Figure 1-2 shows the control byte format.
FIGURE 1-3:
CS
1.4.2
ADDRESSING SPI DEVICES (MCP23S17)
SPI CONTROL BYTE FORMAT
The MCP23S17 is a slave SPI device. The slave address contains four fixed bits and three user-defined hardware address bits (if enabled via IOCON.HAEN) (pins A2, A1 and A0) with the read/write bit filling out the control byte. Figure 1-3 shows the control byte format. The address pins should be externally biased even if disabled (IOCON.HAEN = 0).
Control Byte 0 1 0 0 A2 A1 A0 R/W
Slave Address R/W bit R/W = 0 = write R/W = 1 = read
FIGURE 1-4:
S 0 1 0
I2CTM ADDRESSING REGISTERS
0 A2 A1 A0 0 ACK* A7 A6 A5 A4 A3 A2 A1 A0 ACK*
R/W = 0 Device Opcode *The ACKs are provided by the MCP23017. Register Address
FIGURE 1-5:
CS 0 1
SPI ADDRESSING REGISTERS
0
0
A2 A1 A0 R/W * * *
A7
A6
A5
A4
A3
A2
A1
A0
Device Opcode * Address pins are enabled/disabled via IOCON.HAEN.
Register Address
DS21952B-page 8
(c) 2007 Microchip Technology Inc.
MCP23017/MCP23S17
1.5 GPIO Port
The GPIO module is a general purpose, 16-bit wide, bidirectional port that is functionally split into two 8-bit wide ports. The GPIO module contains the data ports (GPIOn), internal pull-up resistors and the output latches (OLATn). Reading the GPIOn register reads the value on the port. Reading the OLATn register only reads the latches, not the actual value on the port. Writing to the GPIOn register actually causes a write to the latches (OLATn). Writing to the OLATn register forces the associated output drivers to drive to the level in OLATn. Pins configured as inputs turn off the associated output driver and put it in high-impedance.
TABLE 1-3:
Register Name IODIRA IPOLA GPINTENA GPPUA GPIOA OLATA IODIRB IPOLB GPINTENB GPPUB GPIOB OLATB
SUMMARY OF REGISTERS ASSOCIATED WITH THE GPIO PORTS (BANK = 1)
Address (hex) 00 01 02 06 09 0A 10 11 12 16 19 1A bit 7 IO7 IP7 GPINT7 PU7 GP7 OL7 IO7 IP7 GPINT7 PU7 GP7 OL7 bit 6 IO6 IP6 GPINT6 PU6 GP6 OL6 IO6 IP6 GPINT6 PU6 GP6 OL6 bit 5 IO5 IP5 GPINT5 PU5 GP5 OL5 IO5 IP5 GPINT5 PU5 GP5 OL5 bit 4 IO4 IP4 GPINT4 PU4 GP4 OL4 IO4 IP4 GPINT4 PU4 GP4 OL4 bit 3 IO3 IP3 GPINT3 PU3 GP3 OL3 IO3 IP3 GPINT3 PU3 GP3 OL3 bit 2 IO2 IP2 GPINT2 PU2 GP2 OL2 IO2 IP2 GPINT2 PU2 GP2 OL2 bit 1 IO1 IP1 GPINT1 PU1 GP1 OL1 IO1 IP1 GPINT1 PU1 GP1 OL1 bit 0 IO0 IP0 GPINT0 PU0 GP0 OL0 IO0 IP0 GPINT0 PU0 GP0 OL0 POR/RST value 1111 1111 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 1111 1111 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000
TABLE 1-4:
Register Name IODIRA IODIRB IPOLA IPOLB GPINTENA GPINTENB GPPUA GPPUB GPIOA GPIOB OLATA OLATB
SUMMARY OF REGISTERS ASSOCIATED WITH THE GPIO PORTS (BANK = 0)
Address (hex) 00 01 02 03 04 05 0C 0D 12 13 14 15 bit 7 IO7 IO7 IP7 IP7 GPINT7 GPINT7 PU7 PU7 GP7 GP7 OL7 OL7 bit 6 IO6 IO6 IP6 IP6 GPINT6 GPINT6 PU6 PU6 GP6 GP6 OL6 OL6 bit 5 IO5 IO5 IP5 IP5 GPINT5 GPINT5 PU5 PU5 GP5 GP5 OL5 OL5 bit 4 IO4 IO4 IP4 IP4 GPINT4 GPINT4 PU4 PU4 GP4 GP4 OL4 OL4 bit 3 IO3 IO3 IP3 IP3 GPINT3 GPINT3 PU3 PU3 GP3 GP3 OL3 OL3 bit 2 IO2 IO2 IP2 IP2 GPINT2 GPINT2 PU2 PU2 GP2 GP2 OL2 OL2 bit 1 IO1 IO1 IP1 IP1 GPINT1 GPINT1 PU1 PU1 GP1 GP1 OL1 OL1 bit 0 IO0 IO0 IP0 IP0 GPINT0 GPINT0 PU0 PU0 GP0 GP0 OL0 OL0 POR/RST value 1111 1111 1111 1111 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000
(c) 2007 Microchip Technology Inc.
DS21952B-page 9
MCP23017/MCP23S17
1.6 Configuration and Control Registers
are associated with PortB. One register (IOCON) is shared between the two ports. The PortA registers are identical to the PortB registers, therefore, they will be referred to without differentiating between the port designation (i.e., they will not have the "A" or "B" designator assigned) in the register tables.
There are 21 registers associated with the MCP23X17, as shown in Table 1-5 and Table 1-6. The two tables show the register mapping with the two BANK bit values. Ten registers are associated with PortA and ten
TABLE 1-5:
Register Name IODIRA IPOLA GPINTENA DEFVALA INTCONA IOCON GPPUA INTFA INTCAPA GPIOA OLATA IODIRB IPOLB GPINTENB DEFVALB INTCONB IOCON GPPUB INTFB INTCAPB GPIOB OLATB
CONTROL REGISTER SUMMARY (IOCON.BANK = 1)
Address (hex) 00 01 02 03 04 05 06 07 08 09 0A 10 11 12 13 14 15 16 17 18 19 1A bit 7 IO7 IP7 GPINT7 DEF7 IOC7 BANK PU7 INT7 ICP7 GP7 OL7 IO7 IP7 GPINT7 DEF7 IOC7 BANK PU7 INT7 ICP7 GP7 OL7 bit 6 IO6 IP6 GPINT6 DEF6 IOC6 MIRROR PU6 INT6 ICP6 GP6 OL6 IO6 IP6 GPINT6 DEF6 IOC6 MIRROR PU6 INT6 ICP6 GP6 OL6 bit 5 IO5 IP5 GPINT5 DEF5 IOC5 SEQOP PU5 INT5 ICP5 GP5 OL5 IO5 IP5 GPINT5 DEF5 IOC5 SEQOP PU5 INT5 ICP5 GP5 OL5 bit 4 IO4 IP4 GPINT4 DEF4 IOC4 DISSLW PU4 INT4 ICP4 GP4 OL4 IO4 IP4 GPINT4 DEF4 IOC4 DISSLW PU4 INT4 ICP4 GP4 OL4 bit 3 IO3 IP3 GPINT3 DEF3 IOC3 HAEN PU3 INT3 ICP3 GP3 OL3 IO3 IP3 GPINT3 DEF3 IOC3 HAEN PU3 INT3 ICP3 GP3 OL3 bit 2 IO2 IP2 GPINT2 DEF2 IOC2 ODR PU2 INT2 ICP2 GP2 OL2 IO2 IP2 GPINT2 DEF2 IOC2 ODR PU2 INT2 ICP2 GP2 OL2 bit 1 IO1 IP1 GPINT1 DEF1 IOC1 INTPOL PU1 INT1 ICP1 GP1 OL1 IO1 IP1 GPINT1 DEF1 IOC1 INTPOL PU1 INT1 ICP1 GP1 OL1 bit 0 IO0 IP0 GPINT0 DEF0 IOC0 -- PU0 INTO ICP0 GP0 OL0 IO0 IP0 GPINT0 DEF0 IOC0 -- PU0 INTO ICP0 GP0 OL0 POR/RST value 1111 1111 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 1111 1111 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000
DS21952B-page 10
(c) 2007 Microchip Technology Inc.
MCP23017/MCP23S17
TABLE 1-6:
Register Name IODIRA IODIRB IPOLA IPOLB GPINTENA GPINTENB DEFVALA DEFVALB INTCONA INTCONB IOCON IOCON GPPUA GPPUB INTFA INTFB INTCAPA INTCAPB GPIOA GPIOB OLATA OLATB
CONTROL REGISTER SUMMARY (IOCON.BANK = 0)
Address (hex) 00 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F 10 11 12 13 14 15 bit 7 IO7 IO7 IP7 IP7 GPINT7 GPINT7 DEF7 DEF7 IOC7 IOC7 BANK BANK PU7 PU7 INT7 INT7 ICP7 ICP7 GP7 GP7 OL7 OL7 bit 6 IO6 IO6 IP6 IP6 GPINT6 GPINT6 DEF6 DEF6 IOC6 IOC6 MIRROR MIRROR PU6 PU6 INT6 INT6 ICP6 ICP6 GP6 GP6 OL6 OL6 bit 5 IO5 IO5 IP5 IP5 GPINT5 GPINT5 DEF5 DEF5 IOC5 IOC5 SEQOP SEQOP PU5 PU5 INT5 INT5 ICP5 ICP5 GP5 GP5 OL5 OL5 bit 4 IO4 IO4 IP4 IP4 GPINT4 GPINT4 DEF4 DEF4 IOC4 IOC4 DISSLW DISSLW PU4 PU4 INT4 INT4 ICP4 ICP4 GP4 GP4 OL4 OL4 bit 3 IO3 IO3 IP3 IP3 GPINT3 GPINT3 DEF3 DEF3 IOC3 IOC3 HAEN HAEN PU3 PU3 INT3 INT3 ICP3 ICP3 GP3 GP3 OL3 OL3 bit 2 IO2 IO2 IP2 IP2 GPINT2 GPINT2 DEF2 DEF2 IOC2 IOC2 ODR ODR PU2 PU2 INT2 INT2 ICP2 ICP2 GP2 GP2 OL2 OL2 bit 1 IO1 IO1 IP1 IP1 GPINT1 GPINT1 DEF1 DEF1 IOC1 IOC1 INTPOL INTPOL PU1 PU1 INT1 INT1 ICP1 ICP1 GP1 GP1 OL1 OL1 bit 0 IO0 IO0 IP0 IP0 GPINT0 GPINT0 DEF0 DEF0 IOC0 IOC0 -- -- PU0 PU0 INTO INTO ICP0 ICP0 GP0 GP0 OL0 OL0 POR/RST value 1111 1111 1111 1111 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000
(c) 2007 Microchip Technology Inc.
DS21952B-page 11
MCP23017/MCP23S17
1.6.1 I/O DIRECTION REGISTER
Controls the direction of the data I/O. When a bit is set, the corresponding pin becomes an input. When a bit is clear, the corresponding pin becomes an output.
REGISTER 1-1:
R/W-1 IO7 bit 7 Legend: R = Readable bit -n = Value at POR bit 7-0
IODIR - I/O DIRECTION REGISTER (ADDR 0x00)
R/W-1 IO6 R/W-1 IO5 R/W-1 IO4 R/W-1 IO3 R/W-1 IO2 R/W-1 IO1 R/W-1 IO0 bit 0
W = Writable bit `1' = Bit is set
U = Unimplemented bit, read as `0' `0' = Bit is cleared x = Bit is unknown
IO7:IO0: These bits control the direction of data I/O <7:0> 1 = Pin is configured as an input. 0 = Pin is configured as an output.
DS21952B-page 12
(c) 2007 Microchip Technology Inc.
MCP23017/MCP23S17
1.6.2 INPUT POLARITY REGISTER
This register allows the user to configure the polarity on the corresponding GPIO port bits. If a bit is set, the corresponding GPIO register bit will reflect the inverted value on the pin.
REGISTER 1-2:
R/W-0 IP7 bit 7 Legend: R = Readable bit -n = Value at POR bit 7-0
IPOL - INPUT POLARITY PORT REGISTER (ADDR 0x01)
R/W-0 IP6 R/W-0 IP5 R/W-0 IP4 R/W-0 IP3 R/W-0 IP2 R/W-0 IP1 R/W-0 IP0 bit 0
W = Writable bit `1' = Bit is set
U = Unimplemented bit, read as `0' `0' = Bit is cleared x = Bit is unknown
IP7:IP0: These bits control the polarity inversion of the input pins <7:0> 1 = GPIO register bit will reflect the opposite logic state of the input pin. 0 = GPIO register bit will reflect the same logic state of the input pin.
(c) 2007 Microchip Technology Inc.
DS21952B-page 13
MCP23017/MCP23S17
1.6.3 INTERRUPT-ON-CHANGE CONTROL REGISTER
The GPINTEN register controls the interrupt-onchange feature for each pin. If a bit is set, the corresponding pin is enabled for interrupt-on-change. The DEFVAL and INTCON registers must also be configured if any pins are enabled for interrupt-on-change.
REGISTER 1-3:
R/W-0 GPINT7 bit 7 Legend: R = Readable bit -n = Value at POR bit 7-0
GPINTEN - INTERRUPT-ON-CHANGE PINS (ADDR 0x02)
R/W-0 GPINT6 R/W-0 GPINT5 R/W-0 GPINT4 R/W-0 GPINT3 R/W-0 GPINT2 R/W-0 GPINT1 R/W-0 GPINT0 bit 0
W = Writable bit `1' = Bit is set
U = Unimplemented bit, read as `0' `0' = Bit is cleared x = Bit is unknown
GPINT7:GPINT0: General purpose I/O interrupt-on-change bits <7:0> 1 = Enable GPIO input pin for interrupt-on-change event. 0 = Disable GPIO input pin for interrupt-on-change event. Refer to INTCON and GPINTEN.
DS21952B-page 14
(c) 2007 Microchip Technology Inc.
MCP23017/MCP23S17
1.6.4 DEFAULT COMPARE REGISTER FOR INTERRUPT-ON-CHANGE
The default comparison value is configured in the DEFVAL register. If enabled (via GPINTEN and INTCON) to compare against the DEFVAL register, an opposite value on the associated pin will cause an interrupt to occur.
REGISTER 1-4:
R/W-0 DEF7 bit 7 Legend: R = Readable bit -n = Value at POR bit 7-0
DEFVAL - DEFAULT VALUE REGISTER (ADDR 0x03)
R/W-0 DEF6 R/W-0 DEF5 R/W-0 DEF4 R/W-0 DEF3 R/W-0 DEF2 R/W-0 DEF1 R/W-0 DEF0 bit 0
W = Writable bit `1' = Bit is set
U = Unimplemented bit, read as `0' `0' = Bit is cleared x = Bit is unknown
DEF7:DEF0: These bits set the compare value for pins configured for interrupt-on-change from defaults <7:0>. Refer to INTCON. If the associated pin level is the opposite from the register bit, an interrupt occurs. Refer to INTCON and GPINTEN.
(c) 2007 Microchip Technology Inc.
DS21952B-page 15
MCP23017/MCP23S17
1.6.5 INTERRUPT CONTROL REGISTER
The INTCON register controls how the associated pin value is compared for the interrupt-on-change feature. If a bit is set, the corresponding I/O pin is compared against the associated bit in the DEFVAL register. If a bit value is clear, the corresponding I/O pin is compared against the previous value.
REGISTER 1-5:
R/W-0 IOC7 bit 7 Legend: R = Readable bit -n = Value at POR bit 7-0
INTCON - INTERRUPT-ON-CHANGE CONTROL REGISTER (ADDR 0x04)
R/W-0 IOC6 R/W-0 IOC5 R/W-0 IOC4 R/W-0 IOC3 R/W-0 IOC2 R/W-0 IOC1 R/W-0 IOC0 bit 0
W = Writable bit `1' = Bit is set
U = Unimplemented bit, read as `0' `0' = Bit is cleared x = Bit is unknown
IOC7:IOC0: These bits control how the associated pin value is compared for interrupt-on-change <7:0> 1 = Controls how the associated pin value is compared for interrupt-on-change. 0 = Pin value is compared against the previous pin value. Refer to INTCON and GPINTEN.
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MCP23017/MCP23S17
1.6.6 CONFIGURATION REGISTER
contains several bits for The IOCON register configuring the device: The MIRROR bit controls how the INTA and INTB pins function with respect to each other. * When MIRROR = 1, the INTn pins are functionally OR'ed so that an interrupt on either port will cause both pins to activate. * When MIRROR = 0, the INT pins are separated. Interrupt conditions on a port will cause its respective INT pin to activate. The Sequential Operation (SEQOP) controls the incrementing function of the Address Pointer. If the address pointer is disabled, the Address Pointer does not automatically increment after each byte is clocked during a serial transfer. This feature is useful when it is desired to continuously poll (read) or modify (write) a register. The Slew Rate (DISSLW) bit controls the slew rate function on the SDA pin. If enabled, the SDA slew rate will be controlled when driving from a high to low. The Hardware Address Enable (HAEN) bit enables/ disables hardware addressing on the MCP23S17 only. The address pins (A2, A1 and A0) must be externally biased, regardless of the HAEN bit value. If enabled (HAEN = 1), the device's hardware address matches the address pins. If disabled (HAEN = 0), the device's hardware address is A2 = A1 = A0 = 0. The Open-Drain (ODR) control bit enables/disables the INT pin for open-drain configuration. Erasing this bit overrides the INTPOL bit. The Interrupt Polarity (INTPOL) sets the polarity of the INT pin. This bit is functional only when the ODR bit is cleared, configuring the INT pin as active push-pull.
The BANK bit changes how the registers are mapped (see Table 1-5 and Table 1-6 for more details). * If BANK = 1, the registers associated with each port are segregated. Registers associated with PORTA are mapped from address 00h - 0Ah and registers associated with PORTB are mapped from 10h - 1Ah. * If BANK = 0, the A/B registers are paired. For example, IODIRA is mapped to address 00h and IODIRB is mapped to the next address (address 01h). The mapping for all registers is from 00h 15h. It is important to take care when changing the BANK bit as the address mapping changes after the byte is clocked into the device. The address pointer may point to an invalid location after the bit is modified. For example, if the device is configured to automatically increment its internal Address Pointer, the following scenario would occur: * BANK = 0 * Write 80h to address 0Ah (IOCON) to set the BANK bit * Once the write completes, the internal address now points to 0Bh which is an invalid address when the BANK bit is set. For this reason, it is advised to only perform byte writes to this register when changing the BANK bit.
(c) 2007 Microchip Technology Inc.
DS21952B-page 17
MCP23017/MCP23S17
REGISTER 1-6:
R/W-0 BANK bit 7 Legend: R = Readable bit -n = Value at POR bit 7 W = Writable bit `1' = Bit is set U = Unimplemented bit, read as `0' `0' = Bit is cleared x = Bit is unknown
IOCON - I/O EXPANDER CONFIGURATION REGISTER (ADDR 0x05)
R/W-0 MIRROR R/W-0 SEQOP R/W-0 DISSLW R/W-0 HAEN R/W-0 ODR R/W-0 INTPOL U-0 -- bit 0
BANK: Controls how the registers are addressed 1 = The registers associated with each port are separated into different banks 0 = The registers are in the same bank (addresses are sequential) MIRROR: INT Pins Mirror bit 1 = The INT pins are internally connected 0 = The INT pins are not connected. INTA is associated with PortA and INTB is associated with PortB SEQOP: Sequential Operation mode bit. 1 = Sequential operation disabled, address pointer does not increment. 0 = Sequential operation enabled, address pointer increments. DISSLW: Slew Rate control bit for SDA output. 1 = Slew rate disabled. 0 = Slew rate enabled. HAEN: Hardware Address Enable bit (MCP23S17 only). Address pins are always enabled on MCP23017. 1 = Enables the MCP23S17 address pins. 0 = Disables the MCP23S17 address pins. ODR: This bit configures the INT pin as an open-drain output. 1 = Open-drain output (overrides the INTPOL bit). 0 = Active driver output (INTPOL bit sets the polarity). INTPOL: This bit sets the polarity of the INT output pin. 1 = Active-high. 0 = Active-low. Unimplemented: Read as `0'.
bit 6
bit 5
bit 4
bit 3
bit 2
bit 1
bit 0
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(c) 2007 Microchip Technology Inc.
MCP23017/MCP23S17
1.6.7 PULL-UP RESISTOR CONFIGURATION REGISTER
The GPPU register controls the pull-up resistors for the port pins. If a bit is set and the corresponding pin is configured as an input, the corresponding port pin is internally pulled up with a 100 k resistor.
REGISTER 1-7:
R/W-0 PU7 bit 7 Legend: R = Readable bit -n = Value at POR bit 7-0
GPPU - GPIO PULL-UP RESISTOR REGISTER (ADDR 0x06)
R/W-0 PU6 R/W-0 PU5 R/W-0 PU4 R/W-0 PU3 R/W-0 PU2 R/W-0 PU1 R/W-0 PU0 bit 0
W = Writable bit `1' = Bit is set
U = Unimplemented bit, read as `0' `0' = Bit is cleared x = Bit is unknown
PU7:PU0: These bits control the weak pull-up resistors on each pin (when configured as an input) <7:0>. 1 = Pull-up enabled. 0 = Pull-up disabled.
(c) 2007 Microchip Technology Inc.
DS21952B-page 19
MCP23017/MCP23S17
1.6.8 INTERRUPT FLAG REGISTER
The INTF register reflects the interrupt condition on the port pins of any pin that is enabled for interrupts via the GPINTEN register. A `set' bit indicates that the associated pin caused the interrupt. This register is `read-only'. Writes to this register will be ignored.
REGISTER 1-8:
R-0 INT7 bit 7 Legend: R = Readable bit -n = Value at POR bit 7-0
INTF - INTERRUPT FLAG REGISTER (ADDR 0x07)
R-0 INT6 R-0 INT5 R-0 INT4 R-0 INT3 R-0 INT2 R-0 INT1 R-0 INT0 bit 0
W = Writable bit `1' = Bit is set
U = Unimplemented bit, read as `0' `0' = Bit is cleared x = Bit is unknown
INT7:INT0: These bits reflect the interrupt condition on the port. Will reflect the change only if interrupts are enabled (GPINTEN) <7:0>. 1 = Pin caused interrupt. 0 = Interrupt not pending.
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(c) 2007 Microchip Technology Inc.
MCP23017/MCP23S17
1.6.9 INTERRUPT CAPTURE REGISTER
The INTCAP register captures the GPIO port value at the time the interrupt occurred. The register is `read only' and is updated only when an interrupt occurs. The register will remain unchanged until the interrupt is cleared via a read of INTCAP or GPIO.
REGISTER 1-9:
R-x ICP7 bit 7 Legend: R = Readable bit -n = Value at POR bit 7-0
INTCAP - INTERRUPT CAPTURED VALUE FOR PORT REGISTER (ADDR 0x08)
R-x ICP6 R-x ICP5 R-x ICP4 R-x ICP3 R-x ICP2 R-x ICP1 R-x ICP0 bit 0
W = Writable bit `1' = Bit is set
U = Unimplemented bit, read as `0' `0' = Bit is cleared x = Bit is unknown
ICP7:ICP0: These bits reflect the logic level on the port pins at the time of interrupt due to pin change <7:0> 1 = Logic-high. 0 = Logic-low.
(c) 2007 Microchip Technology Inc.
DS21952B-page 21
MCP23017/MCP23S17
1.6.10 PORT REGISTER
The GPIO register reflects the value on the port. Reading from this register reads the port. Writing to this register modifies the Output Latch (OLAT) register.
REGISTER 1-10:
R/W-0 GP7 bit 7 Legend: R = Readable bit -n = Value at POR bit 7-0
GPIO - GENERAL PURPOSE I/O PORT REGISTER (ADDR 0x09)
R/W-0 GP6 R/W-0 GP5 R/W-0 GP4 R/W-0 GP3 R/W-0 GP2 R/W-0 GP1 R/W-0 GP0 bit 0
W = Writable bit `1' = Bit is set
U = Unimplemented bit, read as `0' `0' = Bit is cleared x = Bit is unknown
GP7:GP0: These bits reflect the logic level on the pins <7:0> 1 = Logic-high. 0 = Logic-low.
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MCP23017/MCP23S17
1.6.11 OUTPUT LATCH REGISTER (OLAT)
The OLAT register provides access to the output latches. A read from this register results in a read of the OLAT and not the port itself. A write to this register modifies the output latches that modifies the pins configured as outputs.
REGISTER 1-11:
R/W-0 OL7 bit 7 Legend: R = Readable bit -n = Value at POR bit 7-0
OLAT - OUTPUT LATCH REGISTER 0 (ADDR 0x0A)
R/W-0 OL6 R/W-0 OL5 R/W-0 OL4 R/W-0 OL3 R/W-0 OL2 R/W-0 OL1 R/W-0 OL0 bit 0
W = Writable bit `1' = Bit is set
U = Unimplemented bit, read as `0' `0' = Bit is cleared x = Bit is unknown
OL7:OL0: These bits reflect the logic level on the output latch <7:0> 1 = Logic-high. 0 = Logic-low.
(c) 2007 Microchip Technology Inc.
DS21952B-page 23
MCP23017/MCP23S17
1.7 Interrupt Logic
1.7.2 IOC FROM PIN CHANGE
If enabled, the MCP23X17 activates the INTn interrupt output when one of the port pins changes state or when a pin does not match the preconfigured default. Each pin is individually configurable as follows: * Enable/disable interrupt via GPINTEN * Can interrupt on either pin change or change from default as configured in DEFVAL Both conditions are referred to as Interrupt-on-Change (IOC). The interrupt control module uses the following registers/bits: * IOCON.MIRROR - controls if the two interrupt pins mirror each other * GPINTEN - Interrupt enable register * INTCON - Controls the source for the IOC * DEFVAL - Contains the register default for IOC operation If enabled, the MCP23X17 will generate an interrupt if a mismatch condition exists between the current port value and the previous port value. Only IOC enabled pins will be compared. Refer to Register 1-3 and Register 1-5.
1.7.3
IOC FROM REGISTER DEFAULT
If enabled, the MCP23X17 will generate an interrupt if a mismatch occurs between the DEFVAL register and the port. Only IOC enabled pins will be compared. Refer to Register 1-3, Register 1-5 and Register 1-4.
1.7.4
INTERRUPT OPERATION
The INTn interrupt output can be configured as activelow, active-high or open-drain via the IOCON register. Only those pins that are configured as an input (IODIR register) with Interrupt-On-Change (IOC) enabled (IOINTEN register) can cause an interrupt. Pins defined as an output have no effect on the interrupt output pin. Input change activity on a port input pin that is enabled for IOC will generate an internal device interrupt and the device will capture the value of the port and copy it into INTCAP. The interrupt will remain active until the INTCAP or GPIO register is read. Writing to these registers will not affect the interrupt. The interrupt condition will be cleared after the LSb of the data is clocked out during a read command of GPIO or INTCAP. The first interrupt event will cause the port contents to be copied into the INTCAP register. Subsequent interrupt conditions on the port will not cause an interrupt to occur as long as the interrupt is not cleared by a read of INTCAP or GPIO. Note: The value in INTCAP can be lost if GPIO is read before INTCAP while another IOC is pending. After reading GPIO, the interrupt will clear and then set due to the pending IOC, causing the INTCAP register to update.
1.7.1
INTA AND INTB
There are two interrupt pins: INTA and INTB. By default, INTA is associated with GPAn pins (PortA) and INTB is associated with GPBn pins (PortB). Each port has an independent signal which is cleared if its associated GPIO or INTCAP register is read.
1.7.1.1
Mirroring the INT pins
Additionally, the INTn pins can be configured to mirror each other so that any interrupt will cause both pins to go active. This is controlled via IOCON.MIRROR. If IOCON.MIRROR = 0, the internal signals are routed independently to the INTA and INTB pads. If IOCON.MIRROR = 1, the internal signals are OR'ed together and routed to the INTn pads. In this case, the interrupt will only be cleared if the associated GPIO or INTCAP is read (see Table 1-7).
TABLE 1-7:
Interrupt Condition GPIOA GPIOB
INTERRUPT OPERATION (IOCON.MIRROR = 1)
Read Portn * PortA PortB PortA PortB PortA PortB Both PortA and PortB Interupt Result Clear Unchanged Unchanged Clear Unchanged Unchanged Clear
GPIOA and GPIOB
* Port n = GPIOn or INTCAPn
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(c) 2007 Microchip Technology Inc.
MCP23017/MCP23S17
1.7.5 INTERRUPT CONDITIONS FIGURE 1-7:
There are two possible configurations that cause interrupts (configured via INTCON): 1. Pins configured for interrupt-on-pin change will cause an interrupt to occur if a pin changes to the opposite state. The default state is reset after an interrupt occurs and after clearing the interrupt condition (i.e., after reading GPIO or INTCAP). For example, an interrupt occurs by an input changing from `1' to `0'. The new initial state for the pin is a logic 0 after the interrupt is cleared. Pins configured for interrupt-on-change from register value will cause an interrupt to occur if the corresponding input pin differs from the register bit. The interrupt condition will remain as long as the condition exists, regardless if the INTCAP or GPIO is read.
INTERRUPT-ON-CHANGE FROM REGISTER DEFAULT
DEFVAL REGISTER
GP:
7 X
6 X
5 X
4 X
3 X
2 0
1 X
0 X
GP2 Pin
2.
INT Pin
ACTIVE
ACTIVE
See Figure 1-6 and Figure 1-7 for more information on interrupt operations.
Port value is captured into INTCAP
FIGURE 1-6:
INTERRUPT-ON-PIN CHANGE
Read GPIU or INTCAP (INT clears only if interrupt condition does not exist.)
GPx
INT Port value is captured into INTCAP
ACTIVE Read GPIO or INTCAP
ACTIVE Port value is captured into INTCAP
(c) 2007 Microchip Technology Inc.
DS21952B-page 25
MCP23017/MCP23S17
NOTES:
DS21952B-page 26
(c) 2007 Microchip Technology Inc.
MCP23017/MCP23S17
2.0 ELECTRICAL CHARACTERISTICS
Absolute Maximum Ratings
Ambient temperature under bias............................................................................................................. -40C to +125C Storage temperature ............................................................................................................................... -65C to +150C Voltage on VDD with respect to VSS .......................................................................................................... -0.3V to +5.5V Voltage on all other pins with respect to VSS (except VDD)............................................................. -0.6V to (VDD + 0.6V) Total power dissipation (Note) .............................................................................................................................700 mW Maximum current out of VSS pin ...........................................................................................................................150 mA Maximum current into VDD pin ..............................................................................................................................125 mA Input clamp current, IIK (VI < 0 or VI > VDD)...................................................................................................................... 20 mA Output clamp current, IOK (VO < 0 or VO > VDD) .............................................................................................................. 20 mA Maximum output current sunk by any output pin ....................................................................................................25 mA Maximum output current sourced by any output pin ...............................................................................................25 mA Note: Power dissipation is calculated as follows: PDIS = VDD x {IDD - IOH} + {(VDD - VOH) x IOH} + (VOL x IOL)
NOTE: The graphs and tables provided following this note are a statistical summary based on a limited number of samples and are provided for informational purposes only. The performance characteristics listed herein are not tested or guaranteed. In some graphs or tables, the data presented may be outside the specified operating range (e.g., outside specified power supply range) and therefore outside the warranted range.
(c) 2007 Microchip Technology Inc.
DS21952B-page 27
MCP23017/MCP23S17
2.1 DC Characteristics
Operating Conditions (unless otherwise indicated): 1.8V VDD 5.5V at -40C TA +85C (I-Temp) 4.5V VDD 5.5V at -40C TA +125C (E-Temp) (Note 1) Sym VDD VPOR Min 1.8 -- Typ (Note 1( -- VSS Max 5.5 -- Units V V Conditions
DC Characteristics Param No. D001 D002
Characteristic Supply Voltage VDD Start Voltage to Ensure Power-on Reset VDD Rise Rate to Ensure Power-on Reset Supply Current Standby current
D003
SVDD
0.05
--
--
V/ms
Design guidance only. Not tested. SCL/SCK = 1 MHz 4.5V-5.5V @ +125C (Note 1)
D004 D005
IDD IDDS
-- -- --
-- -- --
1 1 3
mA A A
Input Low Voltage D030 D031 A0, A1 (TTL buffer) CS, GPIO, SCL/SCK, SDA, A2, RESET (Schmitt Trigger) Input High Voltage D040 D041 A0, A1 (TTL buffer) CS, GPIO, SCL/SCK, SDA, A2, RESET (Schmitt Trigger) Input Leakage Current D060 D065 D070 I/O port pins Output Leakage Current I/O port pins GPIO weak pull-up current Output Low-Voltage D080 GPIO INT SO, SDA SDA Output High-Voltage D090 GPIO, INT, SO VOH VDD - 0.7 VDD - 0.7 Capacitive Loading Specs on Output Pins D101 D102 Note 1: GPIO, SO, INT SDA CIO CB -- -- -- -- 50 400 pF pF -- -- -- -- V IOH = -3.0 mA, VDD = 4.5V IOH = -400 A, VDD = 1.8V VOL -- -- -- -- -- -- -- -- 0.6 0.6 0.6 0.8 V V V V IOL = 8.0 mA, VDD = 4.5V IOL = 1.6 mA, VDD = 4.5V IOL = 3.0 mA, VDD = 1.8V IOL = 3.0 mA, VDD = 4.5V ILO IPU -- 40 -- 75 1 115 A A VSS VPIN VDD VDD = 5V, GP Pins = VSS -40C TA +85C IIL -- -- 1 A VSS VPIN VDD VIH 0.25 VDD + 0.8 0.8 VDD -- -- VDD VDD V V For entire VDD range VIL VSS VSS -- -- 0.15 VDD 0.2 VDD V V
This parameter is characterized, not 100% tested.
DS21952B-page 28
(c) 2007 Microchip Technology Inc.
MCP23017/MCP23S17
FIGURE 2-1: LOAD CONDITIONS FOR DEVICE TIMING SPECIFICATIONS
VDD Pin 50 pF 135 pF
1 k SCL and SDA pin MCP23017
FIGURE 2-2:
VDD RESET
RESET AND DEVICE RESET TIMER TIMING
30
32
Internal RESET
34 Output pin
(c) 2007 Microchip Technology Inc.
DS21952B-page 29
MCP23017/MCP23S17
TABLE 2-1: DEVICE RESET SPECIFICATIONS
Operating Conditions (unless otherwise indicated): 1.8V VDD 5.5V at -40C TA +85C (I-Temp) 4.5V VDD 5.5V at -40C TA +125C (E-Temp) (Note 1) Sym TRSTL THLD TIOZ Min 1 -- -- Typ(1) -- 0 -- Max -- -- 1 Units s ns s VDD = 5.0V Conditions
AC Characteristics Param No. 30 32 34 Note 1:
Characteristic RESET Pulse Width (Low) Device Active After Reset high Output High-Impedance From RESET Low
This parameter is characterized, not 100% tested.
FIGURE 2-3:
I2CTM BUS START/STOP BITS TIMING
SCL 90 SDA
91 92
93
Start Condition
Stop Condition
FIGURE 2-4:
I2CTM BUS DATA TIMING
103 100 101 106 102
SCL SDA In
90
91 109
107 109
92 110
SDA Out
DS21952B-page 30
(c) 2007 Microchip Technology Inc.
MCP23017/MCP23S17
TABLE 2-2:
2
I2CTM BUS DATA REQUIREMENTS
Operating Conditions (unless otherwise indicated): 1.8V VDD 5.5V at -40C TA +85C (I-Temp) 4.5V VDD 5.5V at -40C TA +125C (E-Temp) (Note 1) RPU (SCL, SDA) = 1 k, CL (SCL, SDA) = 135 pF Sym THIGH 4.0 0.6 0.12 TLOW 4.7 1.3 0.32 TR (Note 1) -- 20 + 0.1 CB(2) 20 TF (Note 1) -- 20 + 0.1 CB(2) 20 TSU:STA 4.7 0.6 0.16 THD:STA 4.0 0.6 0.16 THD:DAT 0 0 0 TSU:DAT 250 100 0.01 TSU:STO 4.0 0.6 0.16 -- -- -- -- -- -- s s s 1.8V-5.5V (I-Temp) 2.7V-5.5V (I-Temp) 4.5V-5.5V (E-Temp) -- -- -- -- -- -- ns ns s 1.8V-5.5V (I-Temp) 2.7V-5.5V (I-Temp) 4.5V-5.5V (E-Temp) -- -- -- 3.45 0.9 0.15 s s s 1.8V-5.5V (I-Temp) 2.7V-5.5V (I-Temp) 4.5V-5.5V (E-Temp) -- -- -- -- -- -- s s s 1.8V-5.5V (I-Temp) 2.7V-5.5V (I-Temp) 4.5V-5.5V (E-Temp) -- -- -- -- -- -- s s s 1.8V-5.5V (I-Temp) 2.7V-5.5V (I-Temp) 4.5V-5.5V (E-Temp) -- -- -- -- -- -- -- -- -- -- -- -- 1000 300 160 300 300 80 s s s ns ns ns ns ns ns 1.8V-5.5V (I-Temp) 2.7V-5.5V (I-Temp) 4.5V-5.5V (E-Temp) 1.8V-5.5V (I-Temp) 2.7V-5.5V (I-Temp) 4.5V-5.5V (E-Temp) 1.8V-5.5V (I-Temp) 2.7V-5.5V (I-Temp) 4.5V-5.5V (E-Temp) -- -- -- -- -- -- s s s 1.8V-5.5V (I-Temp) 2.7V-5.5V (I-Temp) 4.5V-5.5V (E-Temp) Min Typ Max Units Conditions
I CTM AC Characteristics Param No. 100 Characteristic Clock High Time: 100 kHz mode 400 kHz mode 1.7 MHz mode 101 Clock Low Time: 100 kHz mode 400 kHz mode 1.7 MHz mode 102 SDA and SCL Rise Time: 100 kHz mode 400 kHz mode 1.7 MHz mode 103 SDA and SCL Fall Time: 100 kHz mode 400 kHz mode 1.7 MHz mode 90 START Condition Setup Time: 100 kHz mode 400 kHz mode 1.7 MHz mode 91 START Condition Hold Time: 100 kHz mode 400 kHz mode 1.7 MHz mode 106 Data Input Hold Time: 100 kHz mode 400 kHz mode 1.7 MHz mode 107 Data Input Setup Time: 100 kHz mode 400 kHz mode 1.7 MHz mode 92 Stop Condition Setup Time: 100 kHz mode 400 kHz mode 1.7 MHz mode Note 1: 2:
This parameter is characterized, not 100% tested. CB is specified to be from 10 to 400 pF.
(c) 2007 Microchip Technology Inc.
DS21952B-page 31
MCP23017/MCP23S17
TABLE 2-2:
2
I2CTM BUS DATA REQUIREMENTS (CONTINUED)
Operating Conditions (unless otherwise indicated): 1.8V VDD 5.5V at -40C TA +85C (I-Temp) 4.5V VDD 5.5V at -40C TA +125C (E-Temp) (Note 1) RPU (SCL, SDA) = 1 k, CL (SCL, SDA) = 135 pF Sym TAA -- -- -- TBUF 4.7 1.3 N/A CB -- -- TSP -- -- -- -- 50 10 ns ns Spike suppression off -- -- 400 100 pF pF Note 1 Note 1 -- -- -- -- -- N/A s s s 1.8V-5.5V (I-Temp) 2.7V-5.5V (I-Temp) 4.5V - 5.5V (E-Temp) -- -- -- 3.45 0.9 0.18 s s s 1.8V-5.5V (I-Temp) 2.7V-5.5V (I-Temp) 4.5V-5.5V (E-Temp) Min Typ Max Units Conditions
I CTM AC Characteristics Param No. 109 Characteristic Output Valid From Clock: 100 kHz mode 400 kHz mode 1.7 MHz mode 110 Bus Free Time: 100 kHz mode 400 kHz mode 1.7 MHz mode Bus Capacitive Loading: 100 kHz and 400 kHz 1.7 MHz Input Filter Spike Suppression (SDA and SCL) 100 kHz and 400 kHz 1.7 MHz Note 1: 2:
This parameter is characterized, not 100% tested. CB is specified to be from 10 to 400 pF.
FIGURE 2-5:
SPI INPUT TIMING
3
CS 11 Mode 1,1 SCK Mode 0,0 4 SI MSB in LSB in High-Impedance 5 1 6 7 2 10
SO
DS21952B-page 32
(c) 2007 Microchip Technology Inc.
MCP23017/MCP23S17
FIGURE 2-6: SPI OUTPUT TIMING
CS 8 9 2 Mode 1,1 Mode 0,0 12 SO MSB out 13 14 LSB out
SCK
SI
Don't Care
TABLE 2-3:
SPI INTERFACE AC CHARACTERISTICS
Operating Conditions (unless otherwise indicated): 1.8V VDD 5.5V at -40C TA +85C (I-Temp) 4.5V VDD 5.5V at -40C TA +125C (E-Temp) (Note 1) Sym FCLK Min -- -- -- Typ -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- Max 5 10 10 -- -- -- -- -- -- -- -- -- -- -- -- -- 2 2 -- -- -- Units MHz MHz MHz ns ns ns ns ns ns ns ns ns ns ns ns ns s s ns ns ns 1.8V-5.5V (I-Temp) 2.7V-5.5V (I-Temp) 4.5V-5.5V (E-Temp) 1.8V-5.5V (I-Temp) 2.7V-5.5V (I-Temp) 4.5V-5.5V (E-Temp) 1.8V-5.5V (I-Temp) 2.7V-5.5V (I-Temp) 4.5V-5.5V (E-Temp) 1.8V-5.5V (I-Temp) 2.7V-5.5V (I-Temp) 4.5V-5.5V (E-Temp) Note 1 Note 1 1.8V-5.5V (I-Temp) 2.7V-5.5V (I-Temp) 4.5V-5.5V (E-Temp) Conditions 1.8V-5.5V (I-Temp) 2.7V-5.5V (I-Temp) 4.5V-5.5V (E-Temp)
SPI Interface AC Characteristics Param No.
Characteristic Clock Frequency
1 2
CS Setup Time CS Hold Time
TCSS TCSH
50 100 50 50
3
CS Disable Time
TCSD
100 50 50
4
Data Setup Time
TSU
20 10 10
5
Data Hold Time
THD
20 10 10
6 7 8
CLK Rise Time CLK Fall Time Clock High Time
TR TF THI
-- -- 90 45 45
Note 1:
This parameter is characterized, not 100% tested.
(c) 2007 Microchip Technology Inc.
DS21952B-page 33
MCP23017/MCP23S17
TABLE 2-3: SPI INTERFACE AC CHARACTERISTICS (CONTINUED)
Operating Conditions (unless otherwise indicated): 1.8V VDD 5.5V at -40C TA +85C (I-Temp) 4.5V VDD 5.5V at -40C TA +125C (E-Temp) (Note 1) Sym TLO Min 90 45 45 10 11 12 Clock Delay Time Clock Enable Time Output Valid from Clock Low TCLD TCLE TV 50 50 -- -- -- 13 14 Note 1: Output Hold Time Output Disable Time THO TDIS 0 -- Typ -- -- -- -- -- -- -- -- -- -- Max -- -- -- -- -- 90 45 45 -- 100 Units ns ns ns ns ns ns ns ns ns ns 1.8V-5.5V (I-Temp) 2.7V-5.5V (I-Temp) 4.5V-5.5V (E-Temp) Conditions 1.8V-5.5V (I-Temp) 2.7V-5.5V (I-Temp) 4.5V-5.5V (E-Temp) SPI Interface AC Characteristics Param No. 9
Characteristic Clock Low Time
This parameter is characterized, not 100% tested.
FIGURE 2-7:
GPIO AND INT TIMING
SCL/SCK SDA/SI In
D1
D0 LSb of data byte zero during a write or read command, depending on parameter
50
GPn Output Pin 51 INT Pin
INT Pin Active
Inactive 53
GPn Input Pin
52 Register Loaded
DS21952B-page 34
(c) 2007 Microchip Technology Inc.
MCP23017/MCP23S17
TABLE 2-4: GP AND INT PINS
Operating Conditions (unless otherwise indicated): 1.8V VDD 5.5V at -40C TA +85C (I-Temp) 4.5V VDD 5.5V at -40C TA +125C (E-Temp) (Note 1) Sym TGPOV TINTD TGPIV TGPINT TGLITCH Min -- -- -- -- -- Typ -- -- -- -- -- Max 500 600 450 600 150 Units ns ns ns ns ns Note 1 Conditions AC Characteristics Param No. 50 51 52 53 Note 1:
Characteristic Serial Data to Output Valid Interrupt Pin Disable Time GP Input Change to Register Valid IOC Event to INT Active Glitch Filter on GP Pins
This parameter is characterized, not 100% tested
(c) 2007 Microchip Technology Inc.
DS21952B-page 35
MCP23017/MCP23S17
NOTES:
DS21952B-page 36
(c) 2007 Microchip Technology Inc.
MCP23017/MCP23S17
3.0
3.1
PACKAGING INFORMATION
Package Marking Information
28-Lead PDIP (Skinny DIP)
XXXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXXX YYWWNN
Example:
e3 MCP23017-E/SP^^ 0648256
28-Lead QFN
Example:
XXXXXXXX XXXXXXXX YYWWNNN 28-Lead SOIC
XXXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXXX YYWWNNN
23017 e3 E/ML^^ 0648256 Example:
e3 MCP23017-E/SO^^
0648256
28-Lead SSOP
Example: MCP23017 e E/SS^^3 0648256
XXXXXXXXXXXX XXXXXXXXXXXX YYWWNNN
Legend: XX...X Y YY WW NNN
e3
* Note:
Customer-specific information Year code (last digit of calendar year) Year code (last 2 digits of calendar year) Week code (week of January 1 is week `01') Alphanumeric traceability code Pb-free JEDEC designator for Matte Tin (Sn) This package is Pb-free. The Pb-free JEDEC designator ( e3 ) can be found on the outer packaging for this package.
In the event the full Microchip part number cannot be marked on one line, it will be carried over to the next line, thus limiting the number of available characters for customer-specific information.
(c) 2007 Microchip Technology Inc.
DS21952B-page 37
MCP23017/MCP23S17
28-Lead Skinny Plastic Dual In-Line (SP) - 300 mil Body [SPDIP]
Note: For the most current package drawings, please see the Microchip Packaging Specification located at http://www.microchip.com/packaging
N NOTE 1 E1
1
2
3 D E
A
A2 L c eB
A1
b1 b e
Units Dimension Limits Number of Pins Pitch Top to Seating Plane Molded Package Thickness Base to Seating Plane Shoulder to Shoulder Width Molded Package Width Overall Length Tip to Seating Plane Lead Thickness Upper Lead Width Lower Lead Width Overall Row Spacing N e A A2 A1 E E1 D L c b1 b eB - .120 .015 .290 .240 1.345 .110 .008 .040 .014 - MIN
INCHES NOM 28 .100 BSC - .135 - .310 .285 1.365 .130 .010 .050 .018 - .200 .150 - .335 .295 1.400 .150 .015 .070 .022 MAX
.430 Notes: 1. Pin 1 visual index feature may vary, but must be located within the hatched area. 2. Significant Characteristic. 3. Dimensions D and E1 do not include mold flash or protrusions. Mold flash or protrusions shall not exceed .010" per side. 4. Dimensioning and tolerancing per ASME Y14.5M. BSC: Basic Dimension. Theoretically exact value shown without tolerances. Microchip Technology Drawing C04-070B
DS21952B-page 38
(c) 2007 Microchip Technology Inc.
MCP23017/MCP23S17
28-Lead Plastic Quad Flat, No Lead Package (ML) - 6x6 mm Body [QFN] with 0.55 mm Contact Length
Note: For the most current package drawings, please see the Microchip Packaging Specification located at http://www.microchip.com/packaging
D D2
EXPOSED PAD
e E E2 2 1 N NOTE 1 TOP VIEW BOTTOM VIEW 2 1 N L K
b
A
A3
A1
Units Dimension Limits Number of Pins Pitch Overall Height Standoff Contact Thickness Overall Width Exposed Pad Width Overall Length Exposed Pad Length Contact Width Contact Length Contact-to-Exposed Pad N e A A1 A3 E E2 D D2 b L K 3.65 0.23 0.50 0.20 3.65 0.80 0.00 MIN MILLIMETERS NOM 28 0.65 BSC 0.90 0.02 0.20 REF 6.00 BSC 3.70 6.00 BSC 3.70 0.30 0.55 - 4.20 0.35 0.70 - 4.20 1.00 0.05 MAX
Notes: 1. Pin 1 visual index feature may vary, but must be located within the hatched area. 2. Package is saw singulated. 3. Dimensioning and tolerancing per ASME Y14.5M. BSC: Basic Dimension. Theoretically exact value shown without tolerances. REF: Reference Dimension, usually without tolerance, for information purposes only. Microchip Technology Drawing C04-105B
(c) 2007 Microchip Technology Inc.
DS21952B-page 39
MCP23017/MCP23S17
28-Lead Plastic Small Outline (SO) - Wide, 7.50 mm Body [SOIC]
Note: For the most current package drawings, please see the Microchip Packaging Specification located at http://www.microchip.com/packaging
D N
E E1 NOTE 1 123 b e

h h c
A
A2
L A1 L1
Units Dimension Limits Number of Pins Pitch Overall Height Molded Package Thickness Standoff Overall Width Molded Package Width Overall Length Chamfer (optional) Foot Length Footprint Foot Angle Top Lead Thickness Lead Width Mold Draft Angle Top Mold Draft Angle Bottom N e A A2 A1 E E1 D h L L1 c b 0 0.18 0.31 5 5 0.25 0.40 - 2.05 0.10 MIN
MILLMETERS NOM 28 1.27 BSC - - - 10.30 BSC 7.50 BSC 17.90 BSC - - 1.40 REF - - - - - 8 0.33 0.51 15 0.75 1.27 2.65 - 0.30 MAX
15 Notes: 1. Pin 1 visual index feature may vary, but must be located within the hatched area. 2. Significant Characteristic. 3. Dimensions D and E1 do not include mold flash or protrusions. Mold flash or protrusions shall not exceed 0.15 mm per side. 4. Dimensioning and tolerancing per ASME Y14.5M. BSC: Basic Dimension. Theoretically exact value shown without tolerances. REF: Reference Dimension, usually without tolerance, for information purposes only. Microchip Technology Drawing C04-052B
DS21952B-page 40
(c) 2007 Microchip Technology Inc.
MCP23017/MCP23S17
28-Lead Plastic Shrink Small Outline (SS) - 5.30 mm Body [SSOP]
Note: For the most current package drawings, please see the Microchip Packaging Specification located at http://www.microchip.com/packaging
D N
E E1
12 NOTE 1
b e
c A A2 L1
Units Dimension Limits Number of Pins Pitch Overall Height Molded Package Thickness Standoff Overall Width Molded Package Width Overall Length Foot Length Footprint Lead Thickness Foot Angle Lead Width N e A A2 A1 E E1 D L L1 c b 0.09 0 0.22 - 1.65 0.05 7.40 5.00 9.90 0.55 MIN MILLIMETERS NOM 28 0.65 BSC - 1.75 - 7.80 5.30 10.20 0.75 1.25 REF - 4 - 0.25 8 0.38 2.00 1.85 - 8.20 5.60 10.50 0.95 MAX
A1
L
Notes: 1. Pin 1 visual index feature may vary, but must be located within the hatched area. 2. Dimensions D and E1 do not include mold flash or protrusions. Mold flash or protrusions shall not exceed 0.20 mm per side. 3. Dimensioning and tolerancing per ASME Y14.5M. BSC: Basic Dimension. Theoretically exact value shown without tolerances. REF: Reference Dimension, usually without tolerance, for information purposes only. Microchip Technology Drawing C04-073B
(c) 2007 Microchip Technology Inc.
DS21952B-page 41
MCP23017/MCP23S17
NOTES:
DS21952B-page 42
(c) 2007 Microchip Technology Inc.
MCP23017/MCP23S17
APPENDIX A: REVISION HISTORY
Revision B (February 2007)
1. 2. 3. 4. Changed Byte and Sequential Read in Figure 1-1 from "R" to "W". Table 2-4, Param No. 51 and 53: Changed from 450 to 600 and 500 to 600, respecively. Added disclaimers to package outline drawings. Updated package outline drawings.
Revision A (June 2005)
* Original Release of this Document.
(c) 2007 Microchip Technology Inc.
DS21952B-page 39
MCP23017/MCP23S17
NOTES:
DS21952B-page 40
(c) 2007 Microchip Technology Inc.
MCP23017/MCP23S17
PRODUCT IDENTIFICATION SYSTEM
To order or obtain information, e.g., on pricing or delivery, refer to the factory or the listed sales office. PART NO. Device
-
X
/XX Package
Examples: a) b) Extended Temp., 28LD PDIP package. MCP23017-E/SO: Extended Temp., 28LD SOIC package. MCP23017T-E/SO: Tape and Reel, Extended Temp., 28LD SOIC package. MCP23017-E/SS: Extended Temp., 28LD SSOP package. MCP23017T-E/SS: Tape and Reel, Extended Temp., 28LD SSOP package. Extended Temp., 28LD PDIP package. MCP23S17-E/SO: Extended Temp., 28LD SOIC package. MCP23S17T-E/SO: Tape and Reel, Extended Temp., 28LD SOIC package. MCP23S17-E/SS: Extended Temp., 28LD SSOP package. MCP23S17T-E/SS: Tape and Reel, Extended Temp., 28LD SSOP package. MCP23S17-E/SP: MCP23017-E/SP:
Temperature Range
Device
MCP23017: MCP23017T: MCP23S17: MCP23S17T:
16-Bit I/O Expander w/I2CTM Interface 16-Bit I/O Expander w/I2C Interface (Tape and Reel) 16-Bit I/O Expander w/SPI Interface 16-Bit I/O Expander w/SPI Interface (Tape and Reel)
c)
d) e)
Temperature Range Package
E ML SP SO SS
= = = = =
-40C to +125C (Extended) Plastic Quad, Flat No Leads (QFN), 28-lead Plastic DIP (300 mil Body), 28-Lead Plastic SOIC (300 mil Body), 28-Lead SSOP, (209 mil Body, 5.30 mm), 28-Lead
a) b) c)
d) e)
(c) 2007 Microchip Technology Inc.
DS21952B-page 41
MCP23017/MCP23S17
NOTES:
DS21952B-page 42
(c) 2007 Microchip Technology Inc.
Note the following details of the code protection feature on Microchip devices: * * * Microchip products meet the specification contained in their particular Microchip Data Sheet. Microchip believes that its family of products is one of the most secure families of its kind on the market today, when used in the intended manner and under normal conditions. There are dishonest and possibly illegal methods used to breach the code protection feature. All of these methods, to our knowledge, require using the Microchip products in a manner outside the operating specifications contained in Microchip's Data Sheets. Most likely, the person doing so is engaged in theft of intellectual property. Microchip is willing to work with the customer who is concerned about the integrity of their code. Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their code. Code protection does not mean that we are guaranteeing the product as "unbreakable."
* *
Code protection is constantly evolving. We at Microchip are committed to continuously improving the code protection features of our products. Attempts to break Microchip's code protection feature may be a violation of the Digital Millennium Copyright Act. If such acts allow unauthorized access to your software or other copyrighted work, you may have a right to sue for relief under that Act.
Information contained in this publication regarding device applications and the like is provided only for your convenience and may be superseded by updates. It is your responsibility to ensure that your application meets with your specifications. MICROCHIP MAKES NO REPRESENTATIONS OR WARRANTIES OF ANY KIND WHETHER EXPRESS OR IMPLIED, WRITTEN OR ORAL, STATUTORY OR OTHERWISE, RELATED TO THE INFORMATION, INCLUDING BUT NOT LIMITED TO ITS CONDITION, QUALITY, PERFORMANCE, MERCHANTABILITY OR FITNESS FOR PURPOSE. Microchip disclaims all liability arising from this information and its use. Use of Microchip devices in life support and/or safety applications is entirely at the buyer's risk, and the buyer agrees to defend, indemnify and hold harmless Microchip from any and all damages, claims, suits, or expenses resulting from such use. No licenses are conveyed, implicitly or otherwise, under any Microchip intellectual property rights.
Trademarks The Microchip name and logo, the Microchip logo, Accuron, dsPIC, KEELOQ, KEELOQ logo, microID, MPLAB, PIC, PICmicro, PICSTART, PRO MATE, PowerSmart, rfPIC, and SmartShunt are registered trademarks of Microchip Technology Incorporated in the U.S.A. and other countries. AmpLab, FilterLab, Linear Active Thermistor, Migratable Memory, MXDEV, MXLAB, PS logo, SEEVAL, SmartSensor and The Embedded Control Solutions Company are registered trademarks of Microchip Technology Incorporated in the U.S.A. Analog-for-the-Digital Age, Application Maestro, CodeGuard, dsPICDEM, dsPICDEM.net, dsPICworks, ECAN, ECONOMONITOR, FanSense, FlexROM, fuzzyLAB, In-Circuit Serial Programming, ICSP, ICEPIC, Mindi, MiWi, MPASM, MPLAB Certified logo, MPLIB, MPLINK, PICkit, PICDEM, PICDEM.net, PICLAB, PICtail, PowerCal, PowerInfo, PowerMate, PowerTool, REAL ICE, rfLAB, rfPICDEM, Select Mode, Smart Serial, SmartTel, Total Endurance, UNI/O, WiperLock and ZENA are trademarks of Microchip Technology Incorporated in the U.S.A. and other countries. SQTP is a service mark of Microchip Technology Incorporated in the U.S.A. All other trademarks mentioned herein are property of their respective companies. (c) 2007, Microchip Technology Incorporated, Printed in the U.S.A., All Rights Reserved. Printed on recycled paper.
Microchip received ISO/TS-16949:2002 certification for its worldwide headquarters, design and wafer fabrication facilities in Chandler and Tempe, Arizona, Gresham, Oregon and Mountain View, California. The Company's quality system processes and procedures are for its PIC(R) MCUs and dsPIC(R) DSCs, KEELOQ(R) code hopping devices, Serial EEPROMs, microperipherals, nonvolatile memory and analog products. In addition, Microchip's quality system for the design and manufacture of development systems is ISO 9001:2000 certified.
(c) 2007 Microchip Technology Inc.
DS21952B-page 43
WORLDWIDE SALES AND SERVICE
AMERICAS
Corporate Office 2355 West Chandler Blvd. Chandler, AZ 85224-6199 Tel: 480-792-7200 Fax: 480-792-7277 Technical Support: http://support.microchip.com Web Address: www.microchip.com Atlanta Duluth, GA Tel: 678-957-9614 Fax: 678-957-1455 Boston Westborough, MA Tel: 774-760-0087 Fax: 774-760-0088 Chicago Itasca, IL Tel: 630-285-0071 Fax: 630-285-0075 Dallas Addison, TX Tel: 972-818-7423 Fax: 972-818-2924 Detroit Farmington Hills, MI Tel: 248-538-2250 Fax: 248-538-2260 Kokomo Kokomo, IN Tel: 765-864-8360 Fax: 765-864-8387 Los Angeles Mission Viejo, CA Tel: 949-462-9523 Fax: 949-462-9608 Santa Clara Santa Clara, CA Tel: 408-961-6444 Fax: 408-961-6445 Toronto Mississauga, Ontario, Canada Tel: 905-673-0699 Fax: 905-673-6509
ASIA/PACIFIC
Asia Pacific Office Suites 3707-14, 37th Floor Tower 6, The Gateway Habour City, Kowloon Hong Kong Tel: 852-2401-1200 Fax: 852-2401-3431 Australia - Sydney Tel: 61-2-9868-6733 Fax: 61-2-9868-6755 China - Beijing Tel: 86-10-8528-2100 Fax: 86-10-8528-2104 China - Chengdu Tel: 86-28-8665-5511 Fax: 86-28-8665-7889 China - Fuzhou Tel: 86-591-8750-3506 Fax: 86-591-8750-3521 China - Hong Kong SAR Tel: 852-2401-1200 Fax: 852-2401-3431 China - Qingdao Tel: 86-532-8502-7355 Fax: 86-532-8502-7205 China - Shanghai Tel: 86-21-5407-5533 Fax: 86-21-5407-5066 China - Shenyang Tel: 86-24-2334-2829 Fax: 86-24-2334-2393 China - Shenzhen Tel: 86-755-8203-2660 Fax: 86-755-8203-1760 China - Shunde Tel: 86-757-2839-5507 Fax: 86-757-2839-5571 China - Wuhan Tel: 86-27-5980-5300 Fax: 86-27-5980-5118 China - Xian Tel: 86-29-8833-7250 Fax: 86-29-8833-7256
ASIA/PACIFIC
India - Bangalore Tel: 91-80-4182-8400 Fax: 91-80-4182-8422 India - New Delhi Tel: 91-11-4160-8631 Fax: 91-11-4160-8632 India - Pune Tel: 91-20-2566-1512 Fax: 91-20-2566-1513 Japan - Yokohama Tel: 81-45-471- 6166 Fax: 81-45-471-6122 Korea - Gumi Tel: 82-54-473-4301 Fax: 82-54-473-4302 Korea - Seoul Tel: 82-2-554-7200 Fax: 82-2-558-5932 or 82-2-558-5934 Malaysia - Penang Tel: 60-4-646-8870 Fax: 60-4-646-5086 Philippines - Manila Tel: 63-2-634-9065 Fax: 63-2-634-9069 Singapore Tel: 65-6334-8870 Fax: 65-6334-8850 Taiwan - Hsin Chu Tel: 886-3-572-9526 Fax: 886-3-572-6459 Taiwan - Kaohsiung Tel: 886-7-536-4818 Fax: 886-7-536-4803 Taiwan - Taipei Tel: 886-2-2500-6610 Fax: 886-2-2508-0102 Thailand - Bangkok Tel: 66-2-694-1351 Fax: 66-2-694-1350
EUROPE
Austria - Wels Tel: 43-7242-2244-39 Fax: 43-7242-2244-393 Denmark - Copenhagen Tel: 45-4450-2828 Fax: 45-4485-2829 France - Paris Tel: 33-1-69-53-63-20 Fax: 33-1-69-30-90-79 Germany - Munich Tel: 49-89-627-144-0 Fax: 49-89-627-144-44 Italy - Milan Tel: 39-0331-742611 Fax: 39-0331-466781 Netherlands - Drunen Tel: 31-416-690399 Fax: 31-416-690340 Spain - Madrid Tel: 34-91-708-08-90 Fax: 34-91-708-08-91 UK - Wokingham Tel: 44-118-921-5869 Fax: 44-118-921-5820
12/08/06
DS21952B-page 44
(c) 2007 Microchip Technology Inc.

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