1
CAT34RC02
2-kb I
2
C Serial EEPROM, Serial Presence Detect
* Catalyst Semiconductor is licensed by Philips Corporation to carry the I
2
C Bus Protocol.
PIN CONFIGURATION FUNCTIONAL SYMBOL
DIP Package (P, L)
TSSOP Package (U, Y)
SOIC Package (J, W)
FEATURES
a73 400 kHz I
2
C bus compatible*
a73 1.7 to 5.5 volt operation
a73 16-byte page write buffer
a73 Hardware write protection for entire memory
a73 Permanent and reversible software write
protection for lower 128 bytes
a73 Schmitt trigger on SCL and SDA inputs
a73 Low power CMOS technology
a73 1,000,000 program/erase cycles
a73 100 year data retention
a73 8-pin DIP, SOIC, TSSOP and TDFNpackages
a73 Industrial and extended temperature ranges
DESCRIPTION
The CAT34RC02 is a 2-kb Serial CMOS EEPROM
internally organized as 256 words of 8 bits each. Catalyst’s
advanced CMOS technology substantially reduces
device power requirements. The CAT34RC02 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,
SOIC, TSSOP and TDFN packages.
© 2004 by Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
Doc No. 1052, Rev. K
A
2
A
0
A
1
V
SS
A
0
V
CC
WP
SCL
SDA
1
2
3
4
8
7
6
5
1
2
3
4
8
7
6
5
A
1
A
2
V
SS
V
CC
WP
SCL
SDA
8
7
6
5
V
CC
WP
SCL
SDA
A
2
A
0
A
1
V
SS
1
2
3
4
H
A
L
O
G
EN
F
R
E
E
TM
L
E
A
D F R
E
E
TDFN Package (SP2, VP2)
PIN FUNCTIONS
Pin Name Function
A
0
, A
1
, A
2
Device Address Inputs
SDA Serial Data/Address
SCL Serial Clock
WP Write Protect
V
CC
1.7 V to 5.5 V Power Supply
V
SS
Ground
8
7
6
5
1
2
3
4
A
0
A
1
A
2
V
SS
V
CC
WP
SCL
SDA
V
CC
V
SS
SDA
SCL
WP
CAT34RC02A
2
, A
1
, A
0