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CAT24C023 Datasheet

  • CAT24C023

  • Supervisory Circuits with I2C Serial CMOS E2PROM, Precision ...

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Advanced
CAT24C163(16K), CAT24C083(8K)
CAT24C043(4K), CAT24C023(2K)
Supervisory Circuits with I2C Serial CMOS E2PROM, Precision Reset Controller and Watchdog Timer
FEATURES
s
Watchdog Timer Input (WDI)
s
Programmable Reset Threshold
s
400 KHz I2C Bus Compatible
s
2.7 to 6 Volt Operation
s
Low Power CMOS Technology
s
16 - Byte Page Write Buffer
s
Built-in inadvertent write protection
s
Active High or Low Reset Outputs
鈥?Precision Power Supply Voltage Monitoring
鈥?5V, 3.3V and 3V options
s
1,000,000 Program/Erase Cycles
s
100 Year Data Retention
s
8-Pin DIP or 8-Pin SOIC
s
Commercial, Industrial and Automotive
鈥?V
CC
Lock Out
Temperature Ranges
DESCRIPTION
The CAT24CXX3 is a single chip solution to three
popular functions of EEPROM memory, precision reset
controller and watchdog timer. The 24C163(16K),
24C083(8K), 24C043(4K) and 24C023(2K) feature a I
2
C
Serial CMOS EEPROM Catalyst advanced CMOS tech-
nology substantially reduces device power requirements.
The 24CXX3 features a 16-byte page and is available in
8-pin DIP or 8-pin SOIC packages.
The reset function of the 24CXX3 protects the system
during brown out and power up/down conditions. During
system failure the watchdog timer feature protects the
microcontroller with a reset signal. 24CXX3 features
active low reset on pin 2 and active high reset on pin 7.
24CXX3 features watchdog timer on the WDI input pin
(pin 1).
PIN CONFIGURATION
24CXX3
WDI
RESET
WP
VSS
VCC
RESET
SCL
SDA
BLOCK DIAGRAM
EXTERNAL LOAD
DOUT
ACK
VCC
VSS
WORD ADDRESS
BUFFERS
COLUMN
DECODERS
SENSE AMPS
SHIFT REGISTERS
*All products offered in P and J packages
SDA
START/STOP
LOGIC
PIN FUNCTIONS
Pin Name
SDA
RESET/RESET
SCL
Vcc
V
SS
WDI
WP
Function
WP
XDEC
CONTROL
LOGIC
E
2
PROM
Serial Data/Address
Reset I/O
Clock Input
Power Supply
Ground
Watchdog Timer Input
Write Protect
DATA IN STORAGE
HIGH VOLTAGE/
TIMING CONTROL
RESET Controller
WATCHDOG
STATE COUNTERS
SLAVE
ADDRESS
COMPARATORS
SCL
High
Precision
Vcc Monitor
24C1601 BLOCK
WDI RESET/RESET
漏 1998 by Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
1
Doc. No. 25080-00 3/98 M-1

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