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Catalyst Semiconductor - 2K-Bit I2C Serial EEPROM/ Serial Presence Detect

Numéro de référence CAT34WC02
Description 2K-Bit I2C Serial EEPROM/ Serial Presence Detect
Fabricant Catalyst Semiconductor 
Logo Catalyst Semiconductor 





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CAT34WC02 fiche technique
CAT34WC02
2K-Bit I2C Serial EEPROM, Serial Presence Detect
FEATURES
s 400 KHz (5V) and 100 KHz (1.8V) I2C bus
compatible
s 1.8 to 6.0 volt operation
s Low power CMOS technology
– zero standby current
s 16-byte page write buffer
s Commercial, industrial and automotive
temperature ranges
DESCRIPTION
The CAT34WC02 is a 2K-bit Serial CMOS EEPROM
internally organized as 256 words of 8 bits each. Catalyst’s
advanced CMOS technology substantially reduces de-
vice power requirements. The CAT34WC02 features a
s Self-timed write cycle with auto-clear
s Software write protection for lower 128 bytes
s 1,000,000 program/erase cycles
s 100 year data retention
s 8-pin DIP, 8-pin SOIC and 8-pin TSSOP packages
s 256 x 8 memory organization
s Hardware write protect
16-byte page write buffer. The device operates via the
I2C bus serial interface and is available in 8-pin DIP, 8-
pin SOIC or 8-pin TSSOP packages.
PIN CONFIGURATION
DIP Package (P)
SOIC Package (J)
A0
A1
A2
VSS
1
2
3
4
8 VCC
A0
7 WP
A1
6 SCL
A2
5 SDA VSS
1
2
3
4
8 VCC
7 WP
6 SCL
5 SDA
TSSOP Package (U)
A0
A1
A2
VSS
1
2
3
4
8 VCC
7 WP
6 SCL
5 SDA
BLOCK DIAGRAM
EXTERNAL LOAD
VCC
VSS
DOUT
ACK
WORD ADDRESS
BUFFERS
SDA
START/STOP
LOGIC
SENSE AMPS
SHIFT REGISTERS
COLUMN
DECODERS
XDEC
E2PROM
WP CONTROL
LOGIC
PIN FUNCTIONS
Pin Name
Function
A0, A1, A2 Device Address Inputs
SDA
Serial Data/Address
SCL Serial Clock
WP Write Protect
VCC +1.8V to +6.0V Power Supply
VSS Ground
SCL
A0
A1
A2
STATE COUNTERS
SLAVE
ADDRESS
COMPARATORS
* Catalyst Semiconductor is licensed by Philips Corporation to carry the I2C Bus Protocol.
DATA IN STORAGE
HIGH VOLTAGE/
TIMING CONTROL
24CXX F03
© 2001 by Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
1
Doc No. 1003, Rev. A

PagesPages 10
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