CAT34WC02
2K-Bit I
2
C Serial EEPROM, Serial Presence Detect
FEATURES
s
400 KHz (5V) and 100 KHz (1.8V) I
2
C bus
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
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
16-byte page write buffer. The device operates via the
I
2
C bus serial interface and is available in 8-pin DIP, 8-
pin SOIC or 8-pin TSSOP packages.
PIN CONFIGURATION
DIP Package (P)
A0
A1
A2
VSS
1
2
3
4
8
7
6
5
VCC
WP
SCL
SDA
A0
A1
A2
VSS
BLOCK DIAGRAM
SOIC Package (J)
1
2
3
4
8
7
6
5
VCC
WP
SCL
SDA
EXTERNAL LOAD
DOUT
ACK
VCC
VSS
WORD ADDRESS
BUFFERS
COLUMN
DECODERS
SENSE AMPS
SHIFT REGISTERS
TSSOP Package (U)
A0
A1
A2
VSS
1
2
3
4
8
7
6
5
VCC
WP
SCL
SDA
SDA
START/STOP
LOGIC
XDEC
WP
CONTROL
LOGIC
E
2
PROM
PIN FUNCTIONS
Pin Name
A0, A1, A2
SDA
SCL
WP
V
CC
V
SS
Function
Device Address Inputs
Serial Data/Address
Serial Clock
Write Protect
+1.8V to +6.0V Power Supply
Ground
SCL
A0
A1
A2
STATE COUNTERS
SLAVE
ADDRESS
COMPARATORS
HIGH VOLTAGE/
TIMING CONTROL
DATA IN STORAGE
24CXX F03
* Catalyst Semiconductor is licensed by Philips Corporation to carry the I
2
C Bus Protocol.
© 2001 by Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
1
Doc No. 1003, Rev. A
CATALYST [ CATALYST SEMICONDUCTOR ]
