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CAT24C323PA-45TE13 Scheda tecnica(PDF) 1 Page - Catalyst Semiconductor

Il numero della parte CAT24C323PA-45TE13
Spiegazioni elettronici  Supervisory Circuits with I2C Serial CMOS E2PROM, Precision Reset Controller and Watchdog Timer
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Produttore elettronici  CATALYST [Catalyst Semiconductor]
Homepage  http://www.catalyst-semiconductor.com
Logo CATALYST - Catalyst Semiconductor

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CAT24C323(32K), CAT24C643 (64K)
Supervisory Circuits with I2C Serial CMOS E2PROM, Precision Reset Controller and Watchdog Timer
DESCRIPTION
The CAT24C323/643 is a single chip solution to three
popular functions of EEPROM memory, precision reset
controller and watchdog timer. The 24C323(32K) and
24C643 (64K) feature a I2C Serial CMOS EEPROM
Catalyst advanced CMOS technology substantially re-
duces device power requirements. The 24C323/643
features a 32-byte page and is available in 8-pin DIP or
8-pin SOIC packages.
The reset function of the 24C323/643 protects the sys-
tem during brown out and power up/down conditions.
During system failure the watchdog timer feature pro-
tects the microcontroller with a reset signal. 24C323
features active low reset on pin 2 and active high reset
on pin 7. 24C323/643 features watchdog timer on the
WDI input pin (pin 1).
Pin Name
Function
SDA
Serial Data/Address
RESET/
RESET
Reset I/O
SCL
Clock Input
Vcc
Power Supply
VSS
Ground
WDI
Watchdog Timer Input
WP
Write Protect
PIN FUNCITONS
PIN CONFIGURATION
24C323/643*
BLOCK DIAGRAM
*All products offered in P and J packages
Advanced
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 32 - Byte Page Write Buffer
s Built-in inadvertent write protection
— VCC Lock Out
© 1998 by Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
s
Active High or Low Reset Outputs
— Precision Power Supply Voltage Monitoring
— 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
Temperature Ranges
Doc. No. 25084-00 12/98
DOUT
ACK
SENSE AMPS
SHIFT REGISTERS
CONTROL
LOGIC
WORD ADDRESS
BUFFERS
START/STOP
LOGIC
E2PROM
VCC
EXTERNAL LOAD
COLUMN
DECODERS
XDEC
DATA IN STORAGE
HIGH VOLTAGE/
TIMING CONTROL
VSS
WP
SDA
RESET Controller
High
Precision
Vcc Monitor
STATE COUNTERS
SLAVE
ADDRESS
COMPARATORS
SCL
WDI RESET/
RESET
WATCHDOG
WDI
VCC
RESET
SCL
SDA
RESET
WP
VSS


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