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PCA9534
8-bit I2C-bus and SMBus low power I/O port with interrupt
Rev. 03 -- 6 November 2006 Product data sheet
1. General description
The PCA9534 is a 16-pin CMOS device that provide 8 bits of General Purpose parallel Input/Output (GPIO) expansion for I2C-bus/SMBus applications and was developed to enhance the NXP Semiconductors family of I2C-bus I/O expanders. The improvements include higher drive capability, 5 V I/O tolerance, lower supply current, individual I/O configuration, 400 kHz clock frequency, and smaller packaging. I/O expanders provide a simple solution when additional I/O is needed for ACPI power switches, sensors, push buttons, LEDs, fans, etc. The PCA9534 consists of an 8-bit Configuration register (Input or Output selection); 8-bit Input register, 8-bit Output register and an 8-bit Polarity Inversion register (active HIGH or active LOW operation). The system master can enable the I/Os as either inputs or outputs by writing to the I/O configuration bits. 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. Although pin-to-pin and I2C-bus address compatible with the PCF8574 series, software changes are required due to the enhancements and are discussed in Application Note AN469. The PCA9534 is identical to the PCA9554 except for the removal of the internal I/O pull-up resistor which greatly reduces power consumption when the I/Os are held LOW. The PCA9534 open-drain interrupt output is activated when any input state differs from its corresponding input port register state and is used to indicate to the system master that an input state has changed. The power-on reset sets the registers to their default values and initializes the device state machine. Three hardware pins (A0, A1, A2) vary the fixed I2C-bus address and allow up to eight devices to share the same I2C-bus/SMBus.
2. Features
I I I I I I I I I 8-bit I2C-bus GPIO Operating power supply voltage range of 2.3 V to 5.5 V 5 V tolerant I/Os Polarity Inversion register Active LOW interrupt output Low standby current Noise filter on SCL/SDA inputs No glitch on power-up Internal power-on reset
NXP Semiconductors
PCA9534
8-bit I2C-bus and SMBus low power I/O port with interrupt
I 8 I/O pins which default to 8 inputs I 0 Hz to 400 kHz clock frequency I ESD protection exceeds 2000 V HBM per JESD22-A114, 200 V MM per JESD22-A115 and 1000 V CDM per JESD22-C101 I Latch-up testing is done to JEDEC Standard JESD78 which exceeds 100 mA I Offered in four different packages: SO16, TSSOP16, and HVQFN16 (4 x 4 x 0.85 mm and 3 x 3 x 0.85 mm versions)
3. Ordering information
Table 1. Ordering information Tamb = -40 C to +85 C. Type number PCA9534D PCA9534PW PCA9534BS PCA9534BS3 Topside mark PCA9534D PCA9534 9534 P34 Package Name SO16 TSSOP16 HVQFN16 HVQFN16 Description plastic small outline package; 16 leads; body width 7.5 mm plastic thin shrink small outline package; 16 leads; body width 4.4 mm plastic thermal enhanced very thin quad flat package; no leads; 16 terminals; body 4 x 4 x 0.85 mm plastic thermal enhanced very thin quad flat package; no leads; 16 terminals; body 3 x 3 x 0.85 mm Version SOT162-1 SOT403-1 SOT629-1 SOT758-1
4. Block diagram
PCA9534
A0 A1 A2 8-bit SCL SDA INPUT FILTER I2C-BUS/SMBus CONTROL write pulse read pulse POWER-ON RESET INPUT/ OUTPUT PORTS IO0 IO1 IO2 IO3 IO4 IO5 IO6 IO7 VDD
VDD
VSS
LP FILTER
002aac469
INT
All I/Os are set to inputs at reset.
Fig 1. Block diagram of PCA9534
PCA9534_3
(c) NXP B.V. 2006. All rights reserved.
Product data sheet
Rev. 03 -- 6 November 2006
2 of 25
NXP Semiconductors
PCA9534
8-bit I2C-bus and SMBus low power I/O port with interrupt
5. Pinning information
5.1 Pinning
A0 A1 A2 IO0 IO1 IO2 IO3 VSS
1 2 3 4 5 6 7 8
002aac465
16 VDD 15 SDA 14 SCL 13 INT 12 IO7 11 IO6 10 IO5 9 IO4
A0 A1 A2 IO0 IO1 IO2 IO3 VSS
1 2 3 4 5 6 7 8
002aac466
16 VDD 15 SDA 14 SCL 13 INT 12 IO7 11 IO6 10 IO5 9 IO4
PCA9534D
PCA9534PW
Fig 2. Pin configuration for SO16
13 SDA 14 VDD 16 A1 15 A0 terminal 1 index area
Fig 3. Pin configuration for TSSOP16
16 A1 15 A0 terminal 1 index area 13 SDA 12 SCL 11 INT 10 IO7 9 5 6 7 8 IO6 IO5 14 VDD IO4
A2 IO0 IO1 IO2
1 2
12 SCL 11 INT
A2 IO0 IO1 IO2
1 2
PCA9534BS
3 4 5 6 7 8 10 IO7 9 IO6 3 4
PCA9534BS3
VSS
002aac467
VSS
IO3
IO4
IO5
IO3
002aac468
Transparent top view
Transparent top view
Fig 4. Pin configuration for HVQFN16 (SOT629-1; 4 x 4 x 0.85 mm)
Fig 5. Pin configuration for HVQFN16 (SOT758-1; 3 x 3 x 0.85 mm)
5.2 Pin description
Table 2. Symbol A0 A1 A2 IO0 IO1 IO2 IO3 VSS IO4 IO5
PCA9534_3
Pin description Pin SO16, TSSOP16 1 2 3 4 5 6 7 8 9 10 HVQFN16 15 16 1 2 3 4 5 6[1] 7 8 address input 0 address input 1 address input 2 input/output 0 input/output 1 input/output 2 input/output 3 ground supply voltage input/output 4 input/output 5
(c) NXP B.V. 2006. All rights reserved.
Description
Product data sheet
Rev. 03 -- 6 November 2006
3 of 25
NXP Semiconductors
PCA9534
8-bit I2C-bus and SMBus low power I/O port with interrupt
Pin description ...continued Pin SO16, TSSOP16 HVQFN16 9 10 11 12 13 14 input/output 6 input/output 7 interrupt output (open-drain) serial clock line serial data line supply voltage 11 12 13 14 15 16 Description
Table 2. Symbol IO6 IO7 INT SCL SDA VDD
[1]
HVQFN package die supply ground is connected to both VSS pin and exposed center pad. VSS pin must be connected to supply ground for proper device operation. For enhanced thermal, electrical, and board level performance, the exposed pad needs to be soldered to the board using a corresponding thermal pad on the board and for proper heat conduction through the board, thermal vias need to be incorporated in the PCB in the thermal pad region.
6. Functional description
Refer to Figure 1 "Block diagram of PCA9534".
6.1 Registers
6.1.1 Command byte
Table 3. Command 0 1 2 3 Command byte Protocol read byte read/write byte read/write byte read/write byte Function Input Port register Output Port register Polarity Inversion register Configuration register
The command byte is the first byte to follow the address byte during a write transmission. It is used as a pointer to determine which of the following registers will be written or read.
6.1.2 Register 0 - Input Port register
This register is a read-only port. It reflects the incoming logic levels of the pins, regardless of whether the pin is defined as an input or an output by Register 3. Writes to this register have no effect. The default `X' is determined by the externally applied logic level.
PCA9534_3
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Product data sheet
Rev. 03 -- 6 November 2006
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NXP Semiconductors
PCA9534
8-bit I2C-bus and SMBus low power I/O port with interrupt
Register 0 - Input Port register bit description Symbol I7 I6 I5 I4 I3 I2 I1 I0 Access read only read only read only read only read only read only read only read only Value X X X X X X X X Description determined by externally applied logic level
Table 4. Bit 7 6 5 4 3 2 1 0
6.1.3 Register 1 - Output Port register
This register reflects the outgoing logic levels of the pins defined as outputs by Register 3. Bit values in this register have no effect on pins defined as inputs. Reads from this register return the value that is in the flip-flop controlling the output selection, not the actual pin value.
Table 5. Register 1 - Output Port register bit description Legend: * default value. Bit 7 6 5 4 3 2 1 0 Symbol O7 O6 O5 O4 O3 O2 O1 O0 Access R R R R R R R R Value 1* 1* 1* 1* 1* 1* 1* 1* Description reflects outgoing logic levels of pins defined as outputs by Register 3
6.1.4 Register 2 - Polarity Inversion register
This register allows the user to invert the polarity of the Input Port register data. If a bit in this register is set (written with `1'), the corresponding Input Port data is inverted. If a bit in this register is cleared (written with a `0'), the Input Port data polarity is retained.
Table 6. Register 2 - Polarity Inversion register bit description Legend: * default value. Bit 7 6 5 4 3 2 1 0 Symbol N7 N6 N5 N4 N3 N2 N1 N0 Access R/W R/W R/W R/W R/W R/W R/W R/W Value 0* 0* 0* 0* 0* 0* 0* 0* Description inverts polarity of Input Port register data 0 = Input Port register data retained (default value) 1 = Input Port register data inverted
PCA9534_3
(c) NXP B.V. 2006. All rights reserved.
Product data sheet
Rev. 03 -- 6 November 2006
5 of 25
NXP Semiconductors
PCA9534
8-bit I2C-bus and SMBus low power I/O port with interrupt
6.1.5 Register 3 - Configuration register
This register configures the directions of the I/O pins. If a bit in this register is set, the corresponding port pin is enabled as an input with high-impedance output driver. If a bit in this register is cleared, the corresponding port pin is enabled as an output. At reset, the I/Os are configured as inputs.
Table 7. Register 3 - Configuration register bit description Legend: * default value. Bit 7 6 5 4 3 2 1 0 Symbol C7 C6 C5 C4 C3 C2 C1 C0 Access R/W R/W R/W R/W R/W R/W R/W R/W Value 1* 1* 1* 1* 1* 1* 1* 1* Description configures the directions of the I/O pins 0 = corresponding port pin enabled as an output 1 = corresponding port pin configured as input (default value)
6.2 Power-on reset
When power is applied to VDD, an internal Power-On Reset (POR) holds the PCA9534 in a reset condition until VDD has reached VPOR. At that point, the reset condition is released and the PCA9534 registers and state machine will initialize to their default states. Thereafter, VDD must be lowered below 0.2 V to reset the device. For a power reset cycle, VDD must be lowered below 0.2 V and then restored to the operating voltage.
6.3 Interrupt output
The open-drain interrupt output is activated when one of the port pins change state and the pin is configured as an input. The interrupt is deactivated when the input returns to its previous state or the Input Port register is read. Note that changing an I/O from and output to an input may cause a false interrupt to occur if the state of the pin does not match the contents of the Input Port register.
6.4 I/O port
When an I/O is configured as an input, FETs Q1 and Q2 are off, creating a high-impedance input. The input voltage may be raised above VDD to a maximum of 5.5 V. If the I/O is configured as an output, then either Q1 or Q2 is enabled, depending on the state of the Output Port register. Care should be exercised if an external voltage is applied to an I/O configured as an output because of the low-impedance paths that exist between the pin and either VDD or VSS.
PCA9534_3
(c) NXP B.V. 2006. All rights reserved.
Product data sheet
Rev. 03 -- 6 November 2006
6 of 25
NXP Semiconductors
PCA9534
8-bit I2C-bus and SMBus low power I/O port with interrupt
data from shift register configuration register data from shift register write configuration pulse D FF CK Q D FF Q Q
Q1
output port register data VDD
IO0 to IO7 write pulse CK output port register input port register D FF read pulse CK polarity inversion register data from shift register write polarity pulse D FF CK
002aac470
Q2
VSS
Q
input port register data to INT
Q
polarity inversion register data
Remark: At power-on reset, all registers return to default values.
Fig 6. Simplified schematic of IO0 to IO7
6.5 Device address
slave address 0 1 0 0 A2 A1 A0 R/W
fixed
hardware selectable
002aac471
Fig 7. PCA9534 device address
6.6 Bus transactions
Data is transmitted to the PCA9534 registers using the Write mode as shown in Figure 8 and Figure 9. Data is read from the PCA9534 registers using the Read mode as shown in Figure 10 and Figure 11. These devices do not implement an auto-increment function, so once a command byte has been sent, the register which was addressed will continue to be accessed by reads until a new command byte has been sent.
PCA9534_3
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Product data sheet
Rev. 03 -- 6 November 2006
7 of 25
NXP Semiconductors
PCA9534
8-bit I2C-bus and SMBus low power I/O port with interrupt
SCL
1
2
3
4
5
6
7
8
9 command byte A 0 0 0 0 0 0 0 1 A data to port DATA 1 A acknowledge from slave P STOP condition
slave address SDA S 0 1 0 0 A2 A1 A0 0 R/W acknowledge from slave write to port
START condition
acknowledge from slave
tv(Q) data out from port data 1 valid
002aac472
Fig 8. Write to Output Port register
SCL
1
2
3
4
5
6
7
8
9 command byte A 0 0 0 0 0 0 1 1/0 A data to register DATA A acknowledge from slave P STOP condition
slave address SDA S 0 1 0 0 A2 A1 A0 0 R/W acknowledge from slave
START condition
acknowledge from slave
data to register
002aac473
Fig 9. Write to Configuration register or Polarity Inversion register
slave address SDA S 0 1 0 0 A2 A1 A0 0 R/W acknowledge from slave slave address (cont.) S 0 1 0 0 A2 A1 A0 1 R/W acknowledge from slave A A command byte A (cont.)
START condition
acknowledge from slave data from register DATA (first byte) A data from register DATA (last byte) NA P STOP condition
(repeated) START condition
acknowledge from master
no acknowledge from master
at this moment master-transmitter becomes master-receiver and slave-receiver becomes slave-transmitter
002aac474
Fig 10. Read from register
PCA9534_3
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Product data sheet
Rev. 03 -- 6 November 2006
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NXP Semiconductors
PCA9534
8-bit I2C-bus and SMBus low power I/O port with interrupt
SCL
1
2
3
4
5
6
7
8
9 data from port A DATA 1 A acknowledge from master data from port DATA 4 NA P STOP condition
slave address SDA S 0 1 0 0 A2 A1 A0 1 R/W acknowledge from slave
START condition
no acknowledge from master
read from port data into port tv(INT_N) INT
th(D) DATA 2 trst(INT_N) DATA 3
tsu(D) DATA 4
002aac475
This figure assumes the command byte has previously been programmed with 00h. Transfer of data can be stopped at any moment by a STOP condition.
Fig 11. Read Input Port register
PCA9534_3
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Product data sheet
Rev. 03 -- 6 November 2006
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NXP Semiconductors
PCA9534
8-bit I2C-bus and SMBus low power I/O port with interrupt
7. Application design-in information
5V VDD (5 V)
10 k 10 k 10 k 10 k 2 k 100 k (x 3)
VDD MASTER CONTROLLER SCL SDA
VDD
PCA9534
SCL SDA IO0 IO1 IO2 IO3 IO4
SUBSYSTEM 1 (e.g., temp. sensor) INT RESET SUBSYSTEM 2 (e.g., counter) A enable controlled switch (e.g., CBT device) B
INT VSS
INT
IO5 IO6 IO7 A2 A1 A0 VSS
ALARM SUBSYSTEM 3 (e.g., alarm system)
VDD
002aac476
Device address configured as 0100 100X for this example. IO0, IO1, IO2 configured as outputs. IO3, IO4, IO5 configured as inputs. IO6, IO7 are not used and must be configured as outputs.
Fig 12. Typical application
7.1 Minimizing IDD when the I/O us used to control LEDs
When the I/Os are used to control LEDs, they are normally connected to VDD through a resistor as shown in Figure 12. Since the LED acts as a diode, when the LED is off the I/O VI is about 1.2 V less than VDD. The supply current, IDD, increases as VI becomes lower than VDD. Designs needing to minimize current consumption, such as battery power applications, should consider maintaining the IOn pins greater than or equal to VDD when the LED is off. Figure 13 shows a high value resistor in parallel with the LED. Figure 14 shows VDD less than the LED supply voltage by at least 1.2 V. Both of these methods maintain the I/O VI at or above VDD and prevents additional supply current consumption when the LED is off.
PCA9534_3
(c) NXP B.V. 2006. All rights reserved.
Product data sheet
Rev. 03 -- 6 November 2006
10 of 25
NXP Semiconductors
PCA9534
8-bit I2C-bus and SMBus low power I/O port with interrupt
VDD
3.3 V
5V
VDD
LED
100 k
VDD
LED
IOn
IOn
002aac660
002aac661
Fig 13. High value resistor in parallel with the LED
Fig 14. Device supplied by a lower voltage
8. Limiting values
Table 8. Limiting values In accordance with the Absolute Maximum Rating System (IEC 60134). Symbol VDD II VI/O IO(IOn) IDD ISS Ptot Tstg Tamb Parameter supply voltage input current voltage on an input/output pin output current on pin IOn supply current ground supply current total power dissipation storage temperature ambient temperature Conditions Min -0.5 VSS - 0.5 -65 -40 Max +6.0 20 5.5 50 85 100 200 +150 +85 Unit V mA V mA mA mA mW C C
PCA9534_3
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Product data sheet
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PCA9534
8-bit I2C-bus and SMBus low power I/O port with interrupt
9. Static characteristics
Table 9. Static characteristics VDD = 2.3 V to 5.5 V; VSS = 0 V; Tamb = -40 C to +85 C; unless otherwise specified. Symbol Supplies VDD IDD Istb supply voltage supply current standby current operating mode; VDD = 5.5 V; no load; fSCL = 100 kHz Standby mode; VDD = 5.5 V; no load; fSCL = 0 kHz; I/O = inputs VI = VSS VI = VDD VPOR VIL VIH IOL IL Ci I/Os VIL VIH IOL LOW-level input voltage HIGH-level input voltage LOW-level output current VOL = 0.5 V; VDD = 2.3 V VOL = 0.7 V; VDD = 2.3 V VOL = 0.5 V; VDD = 3.0 V VOL = 0.7 V; VDD = 3.0 V VOL = 0.5 V; VDD = 4.5 V VOL = 0.7 V; VDD = 4.5 V VOH HIGH-level output voltage IOH = -8 mA; VDD = 2.3 V IOH = -10 mA; VDD = 2.3 V IOH = -8 mA; VDD = 3.0 V IOH = -10 mA; VDD = 3.0 V IOH = -8 mA; VDD = 4.75 V IOH = -10 mA; VDD = 4.75 V ILI Ci IOL VIL VIH ILI input leakage current input capacitance LOW-level output current LOW-level input voltage HIGH-level input voltage input leakage current VOL = 0.4 V VI = VDD = VSS
[2] [2] [2] [2] [2] [2] [3] [3] [3] [3] [3] [3]
Parameter
Conditions
Min 2.3 -
Typ 104
Max 5.5 175
Unit V A
[1]
0.25 0.25 1.5 6 5 10 13 14 19 17 24 5 -
1 1 1.65 +0.3VDD 5.5 +1 10 +0.8 5.5 +1 10 0.8 5.5 1
A A V V V mA A pF V V mA mA mA mA mA mA V V V V V V A pF mA V V A
power-on reset voltage LOW-level input voltage HIGH-level input voltage LOW-level output current leakage current input capacitance
no load; VI = VDD or VSS
-0.5 0.7VDD
Input SCL; input/output SDA
VOL = 0.4 V VI = VDD = VSS VI = VSS
3 -1 -0.5 2.0 8 10 8 10 8 10 1.8 1.7 2.6 2.5 4.1 4.0 -1 3 -0.5 2.0 -1
Interrupt INT Select inputs A0, A1, A2
PCA9534_3
(c) NXP B.V. 2006. All rights reserved.
Product data sheet
Rev. 03 -- 6 November 2006
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NXP Semiconductors
PCA9534
8-bit I2C-bus and SMBus low power I/O port with interrupt
[1] [2] [3]
VDD must be lowered to 0.2 V in order to reset part. Each I/O must be externally limited to a maximum of 25 mA and the device must be limited to a maximum current of 100 mA. The total current sourced by all I/Os must be limited to 85 mA.
10. Dynamic characteristics
Table 10. Symbol Dynamic characteristics Parameter Conditions Standard-mode I2C-bus Min fSCL tBUF tHD;STA tSU;STA tSU;STO tHD;DAT tVD:ACK tVD;DAT tSU;DAT tLOW tHIGH tr tf tSP Port timing tv(Q) tsu(D) th(D) tv(INT_N) trst(INT_N)
[1] [2] [3]
Fast-mode I2C-bus Min 0 1.3 0.6 0.6 0.6 0 0.1 50 100 1.3 0.6 20 + 0.1Cb[3] 20 + 0.1Cb[3] Max 400 0.9 300 300 50
Unit
Max 100 3.45 1000 300 50
SCL clock frequency bus free time between a STOP and START condition hold time (repeated) START condition set-up time for a repeated START condition set-up time for STOP condition data hold time data valid acknowledge time data valid time data set-up time LOW period of the SCL clock HIGH period of the SCL clock rise time of both SDA and SCL signals fall time of both SDA and SCL signals pulse width of spikes that must be suppressed by the input filter data output valid time data input setup time data input hold time valid time on pin INT reset time on pin INT
[1] [2]
0 4.7 4.0 4.7 4.0 0 0.3 300 250 4.7 4.0 -
kHz s s s s s s ns ns s s ns s ns
100 1 -
200 4 4
100 1 -
200 4 4
ns ns s s s
Interrupt timing
tVD;ACK = time for Acknowledgement signal from SCL LOW to SDA (out) LOW. tVD;DAT = minimum time for SDA data output to be valid following SCL LOW. Cb = total capacitance of one bus line in pF.
PCA9534_3
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Product data sheet
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NXP Semiconductors
PCA9534
8-bit I2C-bus and SMBus low power I/O port with interrupt
SDA tBUF tLOW SCL tr tf tHD;STA tSP
tHD;STA P S tHD;DAT tHIGH tSU;DAT Sr
tSU;STA
tSU;STO P
002aaa986
Fig 15. Definition of timing
protocol
START condition (S) tSU;STA
bit 7 MSB (A7) tLOW tHIGH
bit 6 (A6)
bit 0 (R/W)
acknowledge (A)
STOP condition (P)
1/f
SCL
SCL tBUF tr tf
SDA
tHD;STA
tSU;DAT
tHD;DAT
tVD;DAT
tVD;ACK
tSU;STO
002aab175
Rise and fall times refer to VIL and VIH.
Fig 16. I2C-bus timing diagram
PCA9534_3
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Product data sheet
Rev. 03 -- 6 November 2006
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PCA9534
8-bit I2C-bus and SMBus low power I/O port with interrupt
11. Test information
6.0 V open VSS
VDD PULSE GENERATOR VI D.U.T.
RT
VO
RL 500
CL 50 pF
002aab393
RL = load resistor. CL = load capacitance includes jig and probe capacitance. RT = termination resistance should be equal to the output impedance Zo of the pulse generators.
Fig 17. Test circuitry for switching times
from output under test
CL 50 pF
500
S1
2VDD open VSS
500
002aab881
Fig 18. Test circuit Table 11. Test tv(Q) Test data Load CL 50 pF RL 500 2VDD Switch
PCA9534_3
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Product data sheet
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NXP Semiconductors
PCA9534
8-bit I2C-bus and SMBus low power I/O port with interrupt
12. Package outline
SO16: plastic small outline package; 16 leads; body width 7.5 mm SOT162-1
D
E
A X
c y HE vMA
Z 16 9
Q A2 A1 pin 1 index Lp L 1 e bp 8 wM detail X (A 3) A
0
5 scale
10 mm
DIMENSIONS (inch dimensions are derived from the original mm dimensions) UNIT mm inches Note 1. Plastic or metal protrusions of 0.15 mm (0.006 inch) maximum per side are not included. OUTLINE VERSION SOT162-1 REFERENCES IEC 075E03 JEDEC MS-013 JEITA EUROPEAN PROJECTION A max. 2.65 0.1 A1 0.3 0.1 A2 2.45 2.25 A3 0.25 0.01 bp 0.49 0.36 c 0.32 0.23 D (1) 10.5 10.1 0.41 0.40 E (1) 7.6 7.4 0.30 0.29 e 1.27 0.05 HE 10.65 10.00 L 1.4 Lp 1.1 0.4 Q 1.1 1.0 0.043 0.039 v 0.25 0.01 w 0.25 0.01 y 0.1 Z
(1)
0.9 0.4
0.012 0.096 0.004 0.089
0.019 0.013 0.014 0.009
0.419 0.043 0.055 0.394 0.016
0.035 0.004 0.016
8o o 0
ISSUE DATE 99-12-27 03-02-19
Fig 19. Package outline SOT162-1 (SO16)
PCA9534_3 (c) NXP B.V. 2006. All rights reserved.
Product data sheet
Rev. 03 -- 6 November 2006
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NXP Semiconductors
PCA9534
8-bit I2C-bus and SMBus low power I/O port with interrupt
TSSOP16: plastic thin shrink small outline package; 16 leads; body width 4.4 mm
SOT403-1
D
E
A
X
c y HE vMA
Z
16
9
Q A2 pin 1 index A1 Lp L (A 3) A
1
e bp
8
wM detail X
0
2.5 scale
5 mm
DIMENSIONS (mm are the original dimensions) UNIT mm A max. 1.1 A1 0.15 0.05 A2 0.95 0.80 A3 0.25 bp 0.30 0.19 c 0.2 0.1 D (1) 5.1 4.9 E (2) 4.5 4.3 e 0.65 HE 6.6 6.2 L 1 Lp 0.75 0.50 Q 0.4 0.3 v 0.2 w 0.13 y 0.1 Z (1) 0.40 0.06 8 o 0
o
Notes 1. Plastic or metal protrusions of 0.15 mm maximum per side are not included. 2. Plastic interlead protrusions of 0.25 mm maximum per side are not included. OUTLINE VERSION SOT403-1 REFERENCES IEC JEDEC MO-153 JEITA EUROPEAN PROJECTION ISSUE DATE 99-12-27 03-02-18
Fig 20. Package outline SOT403-1 (TSSOP16)
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Product data sheet
Rev. 03 -- 6 November 2006
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NXP Semiconductors
PCA9534
8-bit I2C-bus and SMBus low power I/O port with interrupt
HVQFN16: plastic thermal enhanced very thin quad flat package; no leads; 16 terminals; body 4 x 4 x 0.85 mm
SOT629-1
D
B
A
terminal 1 index area E
AA 1 c
detail X
e1
1/2 e
C b 8 vMCAB wMC y1 C y
e 5 L
4
9 e
Eh
1/2 e
e2
1 12
terminal 1 index area
16 Dh 0
13 X 2.5 scale 5 mm
DIMENSIONS (mm are the original dimensions) UNIT mm A(1) max. 1 A1 0.05 0.00 b 0.38 0.23 c 0.2 D (1) 4.1 3.9 Dh 2.25 1.95 E (1) 4.1 3.9 Eh 2.25 1.95 e 0.65 e1 1.95 e2 1.95 L 0.75 0.50 v 0.1 w 0.05 y 0.05 y1 0.1
Note 1. Plastic or metal protrusions of 0.075 mm maximum per side are not included. OUTLINE VERSION SOT629-1 REFERENCES IEC --JEDEC MO-220 JEITA --EUROPEAN PROJECTION ISSUE DATE 01-08-08 02-10-22
Fig 21. Package outline SOT629-1 (HVQFN16)
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Product data sheet
Rev. 03 -- 6 November 2006
18 of 25
NXP Semiconductors
PCA9534
8-bit I2C-bus and SMBus low power I/O port with interrupt
HVQFN16: plastic thermal enhanced very thin quad flat package; no leads; 16 terminals; body 3 x 3 x 0.85 mm
SOT758-1
D
B
A
terminal 1 index area
E
A A1 c
detail X
e1
1/2 e
C vMCAB wM C 8 y1 C y
e 5 L 4
b
9 e
Eh
1/2 e
e2
1
12
terminal 1 index area
16 Dh 0
13 X 2.5 scale 5 mm
DIMENSIONS (mm are the original dimensions) UNIT mm A(1) max. 1 A1 0.05 0.00 b 0.30 0.18 c 0.2 D (1) 3.1 2.9 Dh 1.75 1.45 E (1) 3.1 2.9 Eh 1.75 1.45 e 0.5 e1 1.5 e2 1.5 L 0.5 0.3 v 0.1 w 0.05 y 0.05 y1 0.1
Note 1. Plastic or metal protrusions of 0.075 mm maximum per side are not included. OUTLINE VERSION SOT758-1 REFERENCES IEC --JEDEC MO-220 JEITA --EUROPEAN PROJECTION ISSUE DATE 02-03-25 02-10-21
Fig 22. Package outline SOT758-1 (HVQFN16)
PCA9534_3 (c) NXP B.V. 2006. All rights reserved.
Product data sheet
Rev. 03 -- 6 November 2006
19 of 25
NXP Semiconductors
PCA9534
8-bit I2C-bus and SMBus low power I/O port with interrupt
13. Handling information
Inputs and outputs are protected against electrostatic discharge in normal handling. However, to be completely safe you must take normal precautions appropriate to handling integrated circuits.
14. Soldering
This text provides a very brief insight into a complex technology. A more in-depth account of soldering ICs can be found in Application Note AN10365 "Surface mount reflow soldering description".
14.1 Introduction to soldering
Soldering is one of the most common methods through which packages are attached to Printed Circuit Boards (PCBs), to form electrical circuits. The soldered joint provides both the mechanical and the electrical connection. There is no single soldering method that is ideal for all IC packages. Wave soldering is often preferred when through-hole and Surface Mount Devices (SMDs) are mixed on one printed wiring board; however, it is not suitable for fine pitch SMDs. Reflow soldering is ideal for the small pitches and high densities that come with increased miniaturization.
14.2 Wave and reflow soldering
Wave soldering is a joining technology in which the joints are made by solder coming from a standing wave of liquid solder. The wave soldering process is suitable for the following:
* Through-hole components * Leaded or leadless SMDs, which are glued to the surface of the printed circuit board
Not all SMDs can be wave soldered. Packages with solder balls, and some leadless packages which have solder lands underneath the body, cannot be wave soldered. Also, leaded SMDs with leads having a pitch smaller than ~0.6 mm cannot be wave soldered, due to an increased probability of bridging. The reflow soldering process involves applying solder paste to a board, followed by component placement and exposure to a temperature profile. Leaded packages, packages with solder balls, and leadless packages are all reflow solderable. Key characteristics in both wave and reflow soldering are:
* * * * * *
Board specifications, including the board finish, solder masks and vias Package footprints, including solder thieves and orientation The moisture sensitivity level of the packages Package placement Inspection and repair Lead-free soldering versus PbSn soldering
14.3 Wave soldering
Key characteristics in wave soldering are:
PCA9534_3 (c) NXP B.V. 2006. All rights reserved.
Product data sheet
Rev. 03 -- 6 November 2006
20 of 25
NXP Semiconductors
PCA9534
8-bit I2C-bus and SMBus low power I/O port with interrupt
* Process issues, such as application of adhesive and flux, clinching of leads, board
transport, the solder wave parameters, and the time during which components are exposed to the wave
* Solder bath specifications, including temperature and impurities 14.4 Reflow soldering
Key characteristics in reflow soldering are:
* Lead-free versus SnPb soldering; note that a lead-free reflow process usually leads to
higher minimum peak temperatures (see Figure 23) than a PbSn process, thus reducing the process window
* Solder paste printing issues including smearing, release, and adjusting the process
window for a mix of large and small components on one board
* Reflow temperature profile; this profile includes preheat, reflow (in which the board is
heated to the peak temperature) and cooling down. It is imperative that the peak temperature is high enough for the solder to make reliable solder joints (a solder paste characteristic). In addition, the peak temperature must be low enough that the packages and/or boards are not damaged. The peak temperature of the package depends on package thickness and volume and is classified in accordance with Table 12 and 13
Table 12. SnPb eutectic process (from J-STD-020C) Package reflow temperature (C) Volume (mm3) < 350 < 2.5 2.5 Table 13. 235 220 Lead-free process (from J-STD-020C) Package reflow temperature (C) Volume (mm3) < 350 < 1.6 1.6 to 2.5 > 2.5 260 260 250 350 to 2000 260 250 245 > 2000 260 245 245 350 220 220
Package thickness (mm)
Package thickness (mm)
Moisture sensitivity precautions, as indicated on the packing, must be respected at all times. Studies have shown that small packages reach higher temperatures during reflow soldering, see Figure 23.
PCA9534_3
(c) NXP B.V. 2006. All rights reserved.
Product data sheet
Rev. 03 -- 6 November 2006
21 of 25
NXP Semiconductors
PCA9534
8-bit I2C-bus and SMBus low power I/O port with interrupt
temperature
maximum peak temperature = MSL limit, damage level
minimum peak temperature = minimum soldering temperature
peak temperature
time
001aac844
MSL: Moisture Sensitivity Level
Fig 23. Temperature profiles for large and small components
For further information on temperature profiles, refer to Application Note AN10365 "Surface mount reflow soldering description".
15. Abbreviations
Table 14. Acronym ACPI CDM DUT ESD FET GPIO HBM I2C-bus I/O LED MM POR SMBus Abbreviations Description Advanced Configuration and Power Interface Charged Device Model Device Under Test ElectroStatic Discharge Field-Effect Transistor General Purpose Input/Output Human Body Model Inter-Integrated Circuit bus Input/Output Light-Emitting Diode Machine Model Power-On Reset System Management Bus
PCA9534_3
(c) NXP B.V. 2006. All rights reserved.
Product data sheet
Rev. 03 -- 6 November 2006
22 of 25
NXP Semiconductors
PCA9534
8-bit I2C-bus and SMBus low power I/O port with interrupt
16. Revision history
Table 15. Revision history Release date 20061106 Data sheet status Product data sheet Change notice Supersedes PCA9534_2 Document ID PCA9534_3 Modifications:
* * * * * * * * * * * * *
The format of this data sheet has been redesigned to comply with the new identity guidelines of NXP Semiconductors. Legal texts have been adapted to the new company name where appropriate. pin names I/O0 through I/O7 changed to IO0 through IO7 added HVQFN16 (SOT758-1) package symbol (tpv and tPV) changed to tv(Q) symbol (tph and tPH) changed to th(D) symbol (tps and tPS) changed to tsu(D) symbol (tiv and tIV) changed to tv(INT_N) symbol (tir and tIR) changed to trst(INT_N) Figure 6 "Simplified schematic of IO0 to IO7": removed ESD diodes Table 8 "Limiting values": symbol "II/O, DC output current on an I/O" changed to "IO(IOn), output current on pin IOn" Table 9 "Static characteristics", sub-section "I/Os": symbol IIL changed to ILI added Section 15 "Abbreviations" Product data sheet Product data ECN 853-2319 01-A14517 of 14 Nov 2003 PCA9534_1 -
PCA9534_2 (9397 750 13506) PCA9534_1 (9397 750 12454)
20040930 20031202
PCA9534_3
(c) NXP B.V. 2006. All rights reserved.
Product data sheet
Rev. 03 -- 6 November 2006
23 of 25
NXP Semiconductors
PCA9534
8-bit I2C-bus and SMBus low power I/O port with interrupt
17. Legal information
17.1 Data sheet status
Document status[1][2] Objective [short] data sheet Preliminary [short] data sheet Product [short] data sheet
[1] [2] [3]
Product status[3] Development Qualification Production
Definition This document contains data from the objective specification for product development. This document contains data from the preliminary specification. This document contains the product specification.
Please consult the most recently issued document before initiating or completing a design. The term `short data sheet' is explained in section "Definitions". The product status of device(s) described in this document may have changed since this document was published and may differ in case of multiple devices. The latest product status information is available on the Internet at URL http://www.nxp.com.
17.2 Definitions
Draft -- The document is a draft version only. The content is still under internal review and subject to formal approval, which may result in modifications or additions. NXP Semiconductors does not give any representations or warranties as to the accuracy or completeness of information included herein and shall have no liability for the consequences of use of such information. Short data sheet -- A short data sheet is an extract from a full data sheet with the same product type number(s) and title. A short data sheet is intended for quick reference only and should not be relied upon to contain detailed and full information. For detailed and full information see the relevant full data sheet, which is available on request via the local NXP Semiconductors sales office. In case of any inconsistency or conflict with the short data sheet, the full data sheet shall prevail.
result in personal injury, death or severe property or environmental damage. NXP Semiconductors accepts no liability for inclusion and/or use of NXP Semiconductors products in such equipment or applications and therefore such inclusion and/or use is at the customer's own risk. Applications -- Applications that are described herein for any of these products are for illustrative purposes only. NXP Semiconductors makes no representation or warranty that such applications will be suitable for the specified use without further testing or modification. Limiting values -- Stress above one or more limiting values (as defined in the Absolute Maximum Ratings System of IEC 60134) may cause permanent damage to the device. Limiting values are stress ratings only and operation of the device at these or any other conditions above those given in the Characteristics sections of this document is not implied. Exposure to limiting values for extended periods may affect device reliability. Terms and conditions of sale -- NXP Semiconductors products are sold subject to the general terms and conditions of commercial sale, as published at http://www.nxp.com/profile/terms, including those pertaining to warranty, intellectual property rights infringement and limitation of liability, unless explicitly otherwise agreed to in writing by NXP Semiconductors. In case of any inconsistency or conflict between information in this document and such terms and conditions, the latter will prevail. No offer to sell or license -- Nothing in this document may be interpreted or construed as an offer to sell products that is open for acceptance or the grant, conveyance or implication of any license under any copyrights, patents or other industrial or intellectual property rights.
17.3 Disclaimers
General -- Information in this document is believed to be accurate and reliable. However, NXP Semiconductors does not give any representations or warranties, expressed or implied, as to the accuracy or completeness of such information and shall have no liability for the consequences of use of such information. Right to make changes -- NXP Semiconductors reserves the right to make changes to information published in this document, including without limitation specifications and product descriptions, at any time and without notice. This document supersedes and replaces all information supplied prior to the publication hereof. Suitability for use -- NXP Semiconductors products are not designed, authorized or warranted to be suitable for use in medical, military, aircraft, space or life support equipment, nor in applications where failure or malfunction of a NXP Semiconductors product can reasonably be expected to
17.4 Trademarks
Notice: All referenced brands, product names, service names and trademarks are the property of their respective owners. I2C-bus -- logo is a trademark of NXP B.V.
18. Contact information
For additional information, please visit: http://www.nxp.com For sales office addresses, send an email to: salesaddresses@nxp.com
PCA9534_3
(c) NXP B.V. 2006. All rights reserved.
Product data sheet
Rev. 03 -- 6 November 2006
24 of 25
NXP Semiconductors
PCA9534
8-bit I2C-bus and SMBus low power I/O port with interrupt
19. Contents
1 2 3 4 5 5.1 5.2 6 6.1 6.1.1 6.1.2 6.1.3 6.1.4 6.1.5 6.2 6.3 6.4 6.5 6.6 7 7.1 8 9 10 11 12 13 14 14.1 14.2 14.3 14.4 15 16 17 17.1 17.2 17.3 17.4 18 19 General description . . . . . . . . . . . . . . . . . . . . . . 1 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Ordering information . . . . . . . . . . . . . . . . . . . . . 2 Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Pinning information . . . . . . . . . . . . . . . . . . . . . . 3 Pinning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Pin description . . . . . . . . . . . . . . . . . . . . . . . . . 3 Functional description . . . . . . . . . . . . . . . . . . . 4 Registers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Command byte . . . . . . . . . . . . . . . . . . . . . . . . . 4 Register 0 - Input Port register . . . . . . . . . . . . . 4 Register 1 - Output Port register. . . . . . . . . . . . 5 Register 2 - Polarity Inversion register . . . . . . . 5 Register 3 - Configuration register . . . . . . . . . . 6 Power-on reset . . . . . . . . . . . . . . . . . . . . . . . . . 6 Interrupt output . . . . . . . . . . . . . . . . . . . . . . . . . 6 I/O port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Device address . . . . . . . . . . . . . . . . . . . . . . . . . 7 Bus transactions . . . . . . . . . . . . . . . . . . . . . . . . 7 Application design-in information . . . . . . . . . 10 Minimizing IDD when the I/O us used to control LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Limiting values. . . . . . . . . . . . . . . . . . . . . . . . . 11 Static characteristics. . . . . . . . . . . . . . . . . . . . 12 Dynamic characteristics . . . . . . . . . . . . . . . . . 13 Test information . . . . . . . . . . . . . . . . . . . . . . . . 15 Package outline . . . . . . . . . . . . . . . . . . . . . . . . 16 Handling information. . . . . . . . . . . . . . . . . . . . 20 Soldering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 Introduction to soldering . . . . . . . . . . . . . . . . . 20 Wave and reflow soldering . . . . . . . . . . . . . . . 20 Wave soldering . . . . . . . . . . . . . . . . . . . . . . . . 20 Reflow soldering . . . . . . . . . . . . . . . . . . . . . . . 21 Abbreviations . . . . . . . . . . . . . . . . . . . . . . . . . . 22 Revision history . . . . . . . . . . . . . . . . . . . . . . . . 23 Legal information. . . . . . . . . . . . . . . . . . . . . . . 24 Data sheet status . . . . . . . . . . . . . . . . . . . . . . 24 Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 Disclaimers . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 Trademarks . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 Contact information. . . . . . . . . . . . . . . . . . . . . 24 Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Please be aware that important notices concerning this document and the product(s) described herein, have been included in section `Legal information'.
(c) NXP B.V. 2006.
All rights reserved.
For more information, please visit: http://www.nxp.com For sales office addresses, please send an email to: salesaddresses@nxp.com Date of release: 6 November 2006 Document identifier: PCA9534_3

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