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Preliminary Information
CAT1024, CAT1025
Supervisory Circuits with I2C Serial 2k-bit CMOS EEPROM and Manual Reset FEATURES
Precision power supply voltage monitor 16-Byte page write buffer
H
GEN FR ALO
EE
LE
A D F R E ETM
-- 5V, 3.3V and 3V systems -- Five threshold voltage options
Active high or low reset
Built-in inadvertent write protection
-- WP pin (CAT1025)
1,000,000 Program/Erase cycles Manual reset input 100 year data retention 8-pin DIP, SOIC, TSSOP, MSOP &
-- Valid reset guaranteed at VCC = 1V
400kHz I2C bus 3.0V to 5.5V operation Low power CMOS technology
TDFN (3x3mm foot print) packages
Industrial and extended temperature ranges
DESCRIPTION
voltages support 5V, 3.3V and 3V systems. If power supply voltages are out of tolerance reset signals become active, preventing the system microcontroller, ASIC or peripherals from operating. Reset signals become inactive typically 200 ms after the supply voltage exceeds the reset threshold level. With both active high and low reset signals, interface to microcontrollers and other ICs is simple. In addition, the The CAT1025 provides a precision VCC sense circuit RESET pin or a separate input, MR, can be used as an input and two open drain outputs: one (RESET) drives high for push-button manual reset capability. and the other (RESET) drives low whenever VCC falls below the reset threshold voltage. The CAT1025 also The CAT1024/25 memory features a 16-byte page. In has a Write Protect input (WP). Write operations are addition, hardware data protection is provided by a VCC sense circuit that prevents writes to memory whenever VCC disabled if WP is connected to a logic high. falls below the reset threshold or until VCC reaches the reset The CAT1024 also provides a precision VCC sense threshold during power up. circuit, but has only a RESET output and does not have Available packages include an 8-pin DIP, 8-pin SOIC, 8-pin a Write Protect input. TSSOP, 8-pin TDFN and 8-pin MSOP. The TDFN package The power supply monitor and reset circuit protect thickness is 0.8mm maximum. TDFN footprint is 3x3mm. memory and system controllers during power up/down and against brownout conditions. Five reset threshold The CAT1024 and CAT1025 are complete memory and supervisory solutions for microcontroller-based systems. A 2k-bit serial EEPROM memory and a system power supervisor with brown-out protection are integrated together in low power CMOS technology. Memory interface is via a 400kHz I2C bus.
PIN CONFIGURATION
DIP Package (P, L) SOIC Package (J, W) TSSOP Package (U, Y) MSOP Package (R, Z)
MR 1 RESET 2 NC 3 VSS 4 CAT1024 8 VCC 7 NC 6 SCL 5 SDA
(Bottom View) TDFN Package: 3mm x 3mm 0.8mm maximum height - (RD4, ZD4)
VCC NC SCL SDA
8 7 6 5 1 2
MR RESET NC VSS
CAT1024
3 4
MR 1 RESET 2 RESET 3 VSS 4 CAT1025
8 VCC 7 WP 6 SCL 5 SDA
VCC 8 WP 7 SCL 6 SDA 5
1 MR 2 RESET
CAT1025
3 RESET 4V SS
(c) 2004 by Catalyst Semiconductor, Inc. Characteristics subject to change without notice
Doc No. 3008, Rev. M
CAT1024, CAT1025
BLOCK DIAGRAM -- CAT1024, CAT1025
EXTERNAL LOAD DOUT ACK VCC VSS WORD ADDRESS BUFFERS COLUMN DECODERS SENSE AMPS SHIFT REGISTERS
Threshold Voltage Options
Part Dash Minimum Number Threshold
-45 -42 -30 -28 4.50 4.25 3.00 2.85 2.55
Maximum Threshold
4.75 4.50 3.15 3.00 2.70
SDA
START/STOP LOGIC 2kbit EEPROM
-25
XDEC WP* CONTROL LOGIC
DATA IN STORAGE
HIGH VOLTAGE/ TIMING CONTROL RESET Controller Precision MR
Vcc Monitor
STATE COUNTERS SLAVE ADDRESS COMPARATORS
SCL
* RESET *CAT1025 Only
RESET
PIN FUNCTIONS
Pin Name
NC RESET VSS SDA SCL RESET VCC WP MR
OPERATING TEMPERATURE RANGE
Industrial Extended -40C to 85C -40C to 125C
Function
No Connect Active Low Reset Input/Output Ground Serial Data/Address Clock Input Active High Reset Output (CAT1025 only) Power Supply Write Protect (CAT1025 only) Manual Reset Input
Doc. No. 3008, Rev. M
2
CAT1024, CAT1025
PIN DESCRIPTION
RESET/RESET RESET: RESET OUTPUTS RESET (RESET CAT1025 Only) These are open drain pins and RESET can be used as a manual reset trigger input. By forcing a reset condition on the pin the device will initiate and maintain a reset condition. The RESET pin must be connected through a pull-down resistor, and the RESET pin must be connected through a pull-up resistor. SDA: SERIAL DATA ADDRESS The bidirectional serial data/address pin is used to transfer all data into and out of the device. The SDA pin is an open drain output and can be wire-ORed with other open drain or open collector outputs. SCL: SERIAL CLOCK Serial clock input. MANUAL RESET INPUT MR: Manual Reset input is a debounced input that can be connected to an external source for Manual Reset. Pulling the MR input low will generate a Reset condition. Reset outputs are active while MR input is low and for the reset timeout period after MR returns to high. The input has an internal pull-up resistor. WP (CAT1025 Only): WRITE PROTECT INPUT When tied to VSS or left unconnected write operations to the entire array are allowed. When tied to VCC, the entire array is protected. This input has an internal pull down resistor.
CAT10XX FAMILY OVERVIEW
Device Manual Reset Input Pin Watchdog Watchdog Monitor Pin SDA SDA WDI Write Protection Pin Independent Auxiliary Voltage Sense RESET: Active High and LOW EEPROM
CAT1021 CAT1022 CAT1023 CAT1024 CAT1025 CAT1026 CAT1027
2k 2k 2k 2k 2k 2k
WDI
2k
For supervisory circuits with embedded 16k EEPROM, please refer to the CAT1161, CAT1162 and CAT1163 data sheets.
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Doc No. 3008, Rev. M
CAT1024, CAT1025
ABSOLUTE MAXIMUM RATINGS
Temperature Under Bias ................. -55C to +125C Storage Temperature ....................... -65C to +150C Voltage on any Pin with Respect to Ground(1) ............ -2.0V to +VCC +2.0V VCC with Respect to Ground ............... -2.0V to +7.0V Package Power Dissipation Capability (TA = 25C) ................................... 1.0W Lead Soldering Temperature (10 secs) ............ 300C Output Short Circuit Current(2) ........................ 100 mA
Stresses above those listed under "Absolute Maximum Ratings" may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions outside of those listed in the operational sections of this specification is not implied. Exposure to any absolute maximum rating for extended periods may affect device performance and reliability. Note: (1) The minimum DC input voltage is -0.5V. During transitions, inputs may undershoot to -2.0V for periods of less than 20 ns. Maximum DC voltage on output pins is VCC +0.5V, which may overshoot to VCC +2.0V for periods of less than 20 ns. (2) Output shorted for no more than one second. No more than one output shorted at a time.
D.C. OPERATING CHARACTERISTICS
VCC = +3.0V to +5.5V and over the recommended temperature conditions unless otherwise specified.
Symbol ILI ILO ICC1 ICC2 ISB VIL(1) VIH(1) VOL VOH Parameter Input Leakage Current Output Leakage Current Power Supply Current (Write) Power Supply Current (Read) Standby Current Input Low Voltage Input High Voltage Output Low Voltage (SDA, RESET) Output High Voltage (RESET) IOL = 3mA VCC = 2.7V IOH = -0.4mA VCC = 2.7V CAT102x-45 (VCC = 5V) CAT102x-42 (VCC = 5V) VTH Reset Threshold CAT102x-30 (VCC = 3.3V) CAT102x-28 (VCC = 3.3V) CAT102x-25 (VCC = 3V) VRVALID VRT(2) Reset Output Valid VCC Voltage Reset Threshold Hysteresis Vcc 0.75 4.50 4.25 3.00 2.85 2.55 1.00 15 4.75 4.50 3.15 3.00 2.70 V mV V Test Conditions VIN = GND to Vcc VIN = GND to Vcc fSCL = 400kHz VCC = 5.5V fSCL = 400kHz VCC = 5.5V Vcc = 5.5V, VIN = GND or Vcc -0.5 0.7 x Vcc Min -2 -10 Typ Max 10 10 3 1 40 0.3 x Vcc Vcc + 0.5 0.4 Units A A mA mA A V V V V
Notes: 1. VIL min and VIH max are reference values only and are not tested. 2. This parameter is tested initially and after a design or process change that affects the parameter. Not 100% tested.
Doc. No. 3008, Rev. M
4
CAT1024, CAT1025
CAPACITANCE
TA = 25C, f = 1.0 MHz, VCC = 5V Symbol COUT
(1)
Test Output Capacitance Input Capacitance
Test Conditions VOUT = 0V VIN = 0V
Max 8 6
Units pF pF
CIN(1)
AC CHARACTERISTICS
VCC = 3.0V to 5.5V and over the recommended temperature conditions, unless otherwise specified.
Memory Read & Write Cycle2
Symbol fSCL tSP tLOW tHIGH tR(1) tF
(1)
Parameter Clock Frequency Input Filter Spike Suppression (SDA, SCL) Clock Low Period Clock High Period SDA and SCL Rise Time SDA and SCL Fall Time Start Condition Hold Time Start Condition Setup Time (for a Repeated Start) Data Input Hold Time Data Input Setup Time Stop Condition Setup Time SCL Low to Data Out Valid Data Out Hold Time Time the Bus must be Free Before a New Transmission Can Start Write Cycle Time (Byte or Page)
Min
Max 400 100
Units kHz ns s s
1.3 0.6 300 300 0.6 0.6 0 100 0.6 900 50 1.3 5
ns ns s s ns ns s ns ns s ms
tHD;STA tSU;STA tHD;DAT tSU;DAT tSU;STO tAA tDH tBUF(1) tWC(3)
Notes: 1. This parameter is characterized initially and after a design or process change that affects the parameter. Not 100% tested. 2. Test Conditions according to "AC Test Conditions" table. 3. The write cycle time is the time from a valid stop condition of a write sequence to the end of the internal program/erase cycle. During the write cycle, the bus interface circuits are disabled, SDA is allowed to remain high and the device does not respond to its slave address.
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Doc No. 3008, Rev. M
CAT1024, CAT1025
RESET CIRCUIT AC CHARACTERISTICS
Symbol tPURST tRPD tGLITCH MR Glitch tMRW tMRD Parameter Reset Timeout VTH to RESET Output Delay VCC Glitch Reject Pulse Width Manual Reset Glitch Immunity MR Pulse Width MR Input to RESET Output Delay Test Conditions Note 2 Note 3 Note 4, 5 Note 1 Note 1 Note 1 5 1 Min 130 Typ 200 Max 270 5 30 100 Units ms s ns ns s s
POWER-UP TIMING5,6
Symbol tPUR tPUW Parameter Power-Up to Read Operation Power-Up to Write Operation Test Conditions Min Typ Max 270 270 Units ms ms
AC TEST CONDITIONS
Parameter Input Pulse Voltages Input Rise and Fall Times Input Reference Voltages Output Reference Voltages Output Load Test Conditions 0.2VCC to 0.8VCC 10 ns 0.3VCC, 0.7VCC 0.5VCC Current Source: IOL = 3mA; CL = 100pF
RELIABILITY CHARACTERISTICS
Symbol NEND(5) TDR
(5)
Parameter Endurance Data Retention ESD Susceptibility Latch-Up
Reference Test Method
Min
Max
Units Cycles/Byte Years Volts mA
MIL-STD-883, Test Method 1033 1,000,000 MIL-STD-883, Test Method 1008 MIL-STD-883, Test Method 3015 JEDEC Standard 17 100 2000 100
VZAP(5) ILTH(5)(7)
Notes: 1. Test Conditions according to "AC Test Conditions" table. 2. Power-up, Input Reference Voltage VCC = VTH, Reset Output Reference Voltage and Load according to "AC Test Conditions" Table 3. Power-Down, Input Reference Voltage VCC = VTH, Reset Output Reference Voltage and Load according to "AC Test Conditions" Table 4. VCC Glitch Reference Voltage = VTHmin; Based on characterization data 5. This parameter is characterized initially and after a design or process change that affects the parameter. Not 100% tested. 6. tPUR and tPUW are the delays required from the time VCC is stable until the specified memory operation can be initiated. 7. Latch-up protection is provided for stresses up to 100mA on input and output pins from -1V to VCC + 1V.
Doc. No. 3008, Rev. M
6
CAT1024, CAT1025
DEVICE OPERATION
Reset Controller Description The CAT1024/25 precision RESET controllers ensure correct system operation during brownout and power up/down conditions. They are configured with open drain RESET outputs. During power-up, the RESET outputs remain active until VCC reaches the VTH threshold and will continue driving the outputs for approximately 200ms (tPURST) after reaching VTH. After the tPURST timeout interval, the device will cease to drive the reset outputs. At this point the reset outputs will be pulled up or down by their respective pull up/down resistors. During power-down, the RESET outputs will be active when VCC falls below VTH. The RESET output will be valid so long as VCC is >1.0V (VRVALID). The device is designed to ignore the fast negative going VCC transient pulses (glitches). Reset output timing is shown in Figure 1. Manual Reset Operation The RESET pin can operate as reset output and manual reset input. The input is edge triggered; that is, the RESET input will initiate a reset timeout after detecting a high to low transition. When RESET I/O is driven to the active state, the 200 msec timer will begin to time the reset interval. If external reset is shorter than 200 ms, Reset outputs will remain active at least 200 ms. CAT1024/25 also have a separate manual reset input. Driving the MR input low by connecting a pushbutton (normally open) from MR pin to GND will generate a reset condition. The input has a internal pull up resistor. Reset remains asserted while MR is low and for the Reset Timeout period after MR input has gone high. Glitches shorter than 100 ns on MR input will not generate a reset pulse. No external debouncing circuits are required. Manual reset operation using MR input is shown in Figure 2. Hardware Data Protection The CAT1024/25 family has been designed to solve many of the data corruption issues that have long been associated with serial EEPROMs. Data corruption occurs when incorrect data is stored in a memory location which is assumed to hold correct data. Whenever the device is in a Reset condition, the embedded EEPROM is disabled for all operations, including write operations. If the Reset output(s) are active, in progress communications to the EEPROM are aborted and no new communications are allowed. In this condition an internal write cycle to the memory can not be started, but an in progress internal non-volatile memory write cycle can not be aborted. An internal write cycle initiated before the Reset condition can be successfully finished if there is enough time (5ms) before VCC reaches the minimum value of 2V. In addition, the CAT1025 includes a Write Protection Input which when tied to VCC will disable any write operations to the device.
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Doc No. 3008, Rev. M
CAT1024, CAT1025
t
Figure 1. RESET Output Timing
GLITCH
VTH VRVALID VCC t PURST t RPD t PURST t RPD
RESET
RESET
Figure 2. MR Operation and Timing
t MRW MR
t MRD RESET
t PURST
RESET
Doc. No. 3008, Rev. M
8
CAT1024, CAT1025
EMBEDDED EEPROM OPERATION
The CAT1024 and CAT1025 feature a 2kbit embedded serial EEPROM that supports the I 2C Bus data transmission protocol. This Inter-Integrated Circuit Bus protocol defines any device that sends data to the bus to be a transmitter and any device receiving data to be a receiver. The transfer is controlled by the Master device which generates the serial clock and all START and STOP conditions for bus access. Both the Master device and Slave device can operate as either transmitter or receiver, but the Master device controls which mode is activated. I2C Bus Protocol The features of the I2C bus protocol are defined as follows: (1) Data transfer may be initiated only when the bus is not busy. (2) During a data transfer, the data line must remain stable whenever the clock line is high. Any changes in the data line while the clock line is high will be interpreted as a START or STOP condition. START Condition The START Condition precedes all commands to the device, and is defined as a HIGH to LOW transition of
Figure 3. Bus Timing
tF tLOW SCL tSU:STA tHD:STA tHD:DAT tSU:DAT tSU:STO tHIGH tLOW tR
SDA when SCL is HIGH. The CAT1024/25 monitors the SDA and SCL lines and will not respond until this condition is met. STOP Condition A LOW to HIGH transition of SDA when SCL is HIGH determines the STOP condition. All operations must end with a STOP condition.
DEVICE ADDRESSING
The Master begins a transmission by sending a START condition. The Master sends the address of the particular slave device it is requesting. The four most significant bits of the 8-bit slave address are programmable in metal and the default is 1010. The last bit of the slave address specifies whether a Read or Write operation is to be performed. When this bit is set to 1, a Read operation is selected, and when set to 0, a Write operation is selected. After the Master sends a START condition and the slave address byte, the CAT1024/25 monitors the bus and responds with an acknowledge (on the SDA line) when its address matches the transmitted slave address. The CAT1024/25 then performs a Read or Write operation depending on the R/W bit.
SDA IN tAA SDA OUT tDH tBUF
Figure 4. Write Cycle Timing
SCL
SDA
8TH BIT BYTE n
ACK tWR STOP CONDITION START CONDITION ADDRESS
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Doc No. 3008, Rev. M
CAT1024, CAT1025
ACKNOWLEDGE
After a successful data transfer, each receiving device is required to generate an acknowledge. The acknowledging device pulls down the SDA line during the ninth clock cycle, signaling that it received the 8 bits of data. The CAT1024/25 responds with an acknowledge after receiving a START condition and its slave address. If the device has been selected along with a write operation, it responds with an acknowledge after receiving each 8bit byte. When the CAT1024/25 begins a READ mode it transmits 8 bits of data, releases the SDA line and monitors the line for an acknowledge. Once it receives this acknowledge, the CAT1024/25 will continue to transmit data. If no acknowledge is sent by the Master, the device terminates data transmission and waits for a STOP condition.
WRITE OPERATIONS
Byte Write In the Byte Write mode, the Master device sends the START condition and the slave address information (with the R/W bit set to zero) to the Slave device. After the Slave generates an acknowledge, the Master sends a 8-bit address that is to be written into the address pointers of the device. After receiving another acknowledge from the Slave, the Master device transmits the data to be written into the addressed memory location. The CAT1024/25 acknowledges once more and the Master generates the STOP condition. At this time, the device begins an internal programming cycle to non-volatile memory. While the cycle is in progress, the device will not respond to any request from the Master device.
Figure 5. Start/Stop Timing
SDA
SCL START BIT STOP BIT
Figure 6. Acknowledge Timing
SCL FROM MASTER 1 8 9
DATA OUTPUT FROM TRANSMITTER
DATA OUTPUT FROM RECEIVER START ACKNOWLEDGE
Figure 7. Slave Address Bits Default Configuration CAT
1 0 1 0 0 0 0 R/W
Doc. No. 3008, Rev. M
10
CAT1024, CAT1025
Page Write The CAT1024/25 writes up to 16 bytes of data in a single write cycle, using the Page Write operation. The page write operation is initiated in the same manner as the byte write operation, however instead of terminating after the initial byte is transmitted, the Master is allowed to send up to 15 additional bytes. After each byte has been transmitted, the CAT1024/25 will respond with an acknowledge and internally increment the lower order address bits by one. The high order bits remain unchanged. If the Master transmits more than 16 bytes before sending the STOP condition, the address counter `wraps around,' and previously transmitted data will be overwritten. When all 16 bytes are received, and the STOP condition has been sent by the Master, the internal programming cycle begins. At this point, all received data is written to the CAT1024/25 in a single write cycle.
Figure 8. Byte Write Timing
BUS ACTIVITY: MASTER SDA LINE
S T A R T S
SLAVE ADDRESS
BYTE ADDRESS
DATA
S T O P P
A C K
A C K
A C K
Figure 9. Page Write Timing
S T A R T S A C K A C K A C K A C K A C K
BUS ACTIVITY: MASTER SDA LINE
SLAVE ADDRESS
BYTE ADDRESS (n)
DATA n
DATA n+1
S T DATA n+15 O P P
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Doc No. 3008, Rev. M
CAT1024, CAT1025
Acknowledge Polling Disabling of the inputs can be used to take advantage of the typical write cycle time. Once the stop condition is issued to indicate the end of the host's write opration, the CAT1024/25 initiates the internal write cycle. ACK polling can be initiated immediately. This involves issuing the start condition followed by the slave address for a write operation. If the device is still busy with the write operation, no ACK will be returned. If a write operation has completed, an ACK will be returned and the host can then proceed with the next read or write operation. memory array is protected and becomes read only. The CAT1025 will accept both slave and byte addresses, but the memory location accessed is protected from programming by the device's failure to send an acknowledge after the first byte of data is received. Read Operations The READ operation for the CAT1024/25 is initiated in the same manner as the write operation with one exception, that R/W bit is set to one. Three different READ operations are possible: Immediate/Current Address READ, Selective/Random READ and Sequential READ.
WRITE PROTECTION
The Write Protection feature (CAT1025 only) allows the user to protect against inadvertent memory array programming. If the WP pin is tied to VCC, the entire
Figure 10. Immediate Address Read Timing
BUS ACTIVITY: MASTER SDA LINE
S T A R T S
SLAVE ADDRESS
S T O P P A C K DATA N O A C K
SCL
8
9
SDA
8TH BIT DATA OUT NO ACK STOP
Doc. No. 3008, Rev. M
12
CAT1024, CAT1025
Immediate/Current Address Read The CAT1024 and CAT1025 address counter contains the address of the last byte accessed, incremented by one. In other words, if the last READ or WRITE access was to address N, the READ immediately following would access data from address N+1. For N=E=255, the counter will wrap around to zero and continue to clock out valid data. After the CAT1024 and CAT1025 receives its slave address information (with the R/W bit set to one), it issues an acknowledge, then transmits the 8-bit byte requested. The master device does not send an acknowledge, but will generate a STOP condition. Selective/Random Read Selective/Random READ operations allow the Master device to select at random any memory location for a READ operation. The Master device first performs a `dummy' write operation by sending the START condition, slave address and byte addresses of the location it wishes to read. After the CAT1024 and CAT1025 acknowledges, the Master device sends the START condition and the slave address again, this time with the R/W bit set to one. The CAT1024 and CAT1025 then responds with its acknowledge and sends the 8-bit byte requested. The master device does not send an acknowledge but will generate a STOP condition. Sequential Read The Sequential READ operation can be initiated by either the Immediate Address READ or Selective READ operations. After the CAT1024 and CAT1025 sends the inital 8-bit byte requested, the Master will responds with an acknowledge which tells the device it requires more data. The CAT1024 and CAT1025 will continue to output an 8-bit byte for each acknowledge, thus sending the STOP condition. The data being transmitted from the CAT1024 and CAT1025 is sent sequentially with the data from address N followed by data from address N+1. The READ operation address counter increments all of the CAT1024 and CAT1025 address bits so that the entire memory array can be read during one operation.
Figure 11. Selective Read Timing
S T A R T S A C K A C K S T A R T S A C K DATA n N O A C K
BUS ACTIVITY: MASTER SDA LINE
SLAVE ADDRESS
BYTE ADDRESS (n)
SLAVE ADDRESS
S T O P P
Figure 12. Sequential Read Timing
BUS ACTIVITY: MASTER SDA LINE A C K A C K A C K A C K N O A C K SLAVE ADDRESS DATA n DATA n+1 DATA n+2 DATA n+x S T O P P
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Doc No. 3008, Rev. M
CAT1024, CAT1025
PACKAGE OUTLINES 8-LEAD 300 MIL WIDE PLASTIC DIP (P, L)
0.245 (6.17) 0.295 (7.49)
D
0.120 (3.05) 0.150 (3.81) 0.180 (4.57) MAX
0.300 (7.62) 0.325 (8.26)
0.015 (0.38) -- 0.100 (2.54) BSC 0.045 (1.14) 0.060 (1.52) 0.014 (0.36) 0.022 (0.56)
0.110 (2.79) 0.150 (3.81) 0.310 (7.87) 0.380 (9.65)
Dimension D Pkg 8L Min 0.355 (9.02) Max 0.400 (10.16)
Notes: 1. Complies with JEDEC Publication 95 MS001 dimensions; however, some of the dimensions may be more stringent. 2. All linear dimensions are in inches and parenthetically in millimeters.
Doc. No. 3008, Rev. M
14
CAT1024, CAT1025
8-LEAD 150 MIL WIDE SOIC (J, W)
0.1497 (3.80) 0.1574 (4.00)
0.2284 (5.80) 0.2440 (6.20)
D
0.0532 (1.35) 0.0688 (1.75) 0.050 (1.27) BSC 0.013 (0.33) 0.020 (0.51)
0.0040 (0.10) 0.0098 (0.25)
0.0099 (0.25) X 45 0.0196 (0.50) 0.0075 (0.19) 0.0098 (0.25) 0-8 0.016 (0.40) 0.050 (1.27)
Dimension D Pkg 8L Min 0.1890(4.80) Max 0.1968(5.00)
Notes: 1. Complies with JEDEC publication 95 MS-012 dimensions; however, some dimensions may be more stringent. 2. All linear dimensions are in inches and parenthetically in millimeters. 3. Lead coplanarity is 0.004" (0.102mm) maximum.
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Doc No. 3008, Rev. M
CAT1024, CAT1025
8-LEAD TSSOP (U, Y)
Doc. No. 3008, Rev. M
16
CAT1024, CAT1025
8 LEAD MSOP (R, Z)
0.0150 0.0110 0.38 0.28
0.1970 0.1890
5.00 4.80
S
0.0256 [0.65] BSC
0.1220 0.1142
3.10 2.90
0.0433 [1.10] MAX.
0.0374 0.0295
0.95 0.75
0.039 [0.10] MAX.
S
0.0059 0.0020
0.15 0.05
S
0.0150 0.0110
0.38 0.28
WITH PLATING
0.0276 0.0157
0.70 0.40
0.1220 0.1142
3.10 2.90
0.0091 0.0051 0 - 6
WITH
0.23 0.13
PLATING
0.0050 [0.127]
BASE METAL 0.0118 [0.30] REF.
SECTION A - A
Notes: (1) All dimensions are in mm Angles in degrees. 2 Does not include Mold Flash, Protrusion or Gate Burrs. Mold Flash, Protrusions or Gate Burrs shall not exceed 0.15 mm. per side. 3 Does not include Interlead Flash orProtrusion. Interlead Flash or Protrusion shall not exceed 0.25 mm per side. 4 Does not include Dambar Protrusion, allowable Dambar Protrusion shall be 0.08 mm. (5) This part is compliant with JEDEC Specification MO-187 Variations AA. (6) Lead span/stand off height/coplanarity are considered as special characteristics. (S) (7) Controlling dimensions in inches. [mm]
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Doc No. 3008, Rev. M
CAT1024, CAT1025
TDFN 3X3 PACKAGE (RD4, ZD4)
8
5
A B
0.75 + 0.05
3.00 + 0.10 (S)
2X
0.15 C
1 3.00 + 0.10 (S) PIN 1 INDEX AREA
4
2X 0.15 C
0.0 - 0.05 8
5
0.75 + 0.05
1.50 + 0.10
2.30 + 0.10 C0.35 PIN 1 ID
C 0.25 min.
1 0.30 + 0.07 (8x) 1.95 REF. (2x) NOTE: 1. ALL DIMENSION ARE IN mm. ANGLES IN DEGREES. 2. COPLANARITY SHALL NOT EXCEED 0.08 mm. 3. WARPAGE SHALL NOT EXCEED 0.10 mm. 4. PACKAGE LENGTH / PACKAGE WIDTH ARE CONSIDERED AS SPECIAL CHARACTERISTIC(S) 5. REFER JEDEC MO-229 / WEEC
0.30 + 0.10 (8x)
0.65 TYP. (6x)
Doc. No. 3008, Rev. M
18
CAT1024, CAT1025
Ordering Information
Prefix CAT Device # 1024 Suffix J I -30
TE13
Optional Company ID
Product Number 1024: 2K 1025: 2K
Temperature Range I = Industrial (-40C to 85C) E = Extended Automotive (-40C to +125C)
Tape & Reel SOIC: 2000/Reel TSSOP: 2000/Reel MSOP: 2500/Reel TDFN: 2000/Reel
Package P: PDIP J: SOIC (JEDEC) R: MSOP U: TSSOP RD4: 8-pad TDFN (3x3mm) L: PDIP (Lead free, Halogen free) W: SOIC (JEDEC, Lead free, Halogen free) Z: MSOP Lead free, Halogen free) Y: TSSOP (Lead free, Halogen free) ZD4: 3x3mm TDFN (Lead free, Halogen free)
Reset Threshold Voltage 45: 4.5-4.75V 42: 4.25-4.5V 30: 3.0-3.15V 28: 2.85-3.0V 25: 2.55-2.7V
Note: (1) The device used in the above example is a CAT1024JI-30TE13 (Supervisory circuit with I2C serial 2k CMOS EEPROM, SOIC, Industrial Temperature, 3.0-3.15V Reset Threshold Voltage, Tape and Reel).
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Doc No. 3008, Rev. M
REVISION HISTORY
Date 11/7/03 4/12/2004 11/1/2004 Rev. I J K Reason Eliminated Automotive temperature range Eliminated data sheet designation Updated Reel Ordering Information Changed SOIC package designators Eliminated 8-pad TDFN (3x4.9mm) package Added package outlines 11/04/04 11/11/04 L M Update Pin Configuration Update Features Update Description Updae DC Operating Characteristic Update AC Characteristics
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Publication #: Revison: Issue date:
3008 M 11/11/04

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