CAT24WC01/02/04/08/16
1K/2K/4K/8K/16K-Bit Serial E
2
PROM
FEATURES
s
400 KHZ I
2
C Bus Compatible*
s
1.8 to 6.0Volt Operation
s
Low Power CMOS Technology
s
Write Protect Feature
s
Self-Timed Write Cycle with Auto-Clear
s
1,000,000 Program/Erase Cycles
s
100 Year Data Retention
s
8-pin DIP, 8-pin SOIC or 8 pin TSSOP
s
Commercial, Industrial and Automotive
— Entire Array Protected When WP at V
IH
s
Page Write Buffer
Temperature Ranges
DESCRIPTION
The CAT24WC01/02/04/08/16 is a 1K/2K/4K/8K/16K-
bit Serial CMOS E
2
PROM internally organized as 128/
256/512/1024/2048 words of 8 bits each. Catalyst’s
advanced CMOS technology substantially reduces de-
vice power requirements. The the CAT24WC01/02/04/
08/16 feature a 16-byte page write buffer. The device
operates via the I
2
C bus serial interface, has a special
write protection feature, and is available in 8-pin DIP, 8-
pin SOIC or 8-pin TSSOP.
PIN CONFIGURATION
DIP Package (P)
A0
A1
A2
VSS
1
2
3
4
8
7
6
5
VCC
WP
SCL
SDA
BLOCK DIAGRAM
SOIC Package (J)
EXTERNAL LOAD
A0
A1
A2
VSS
1
2
3
4
8
7
6
5
VCC
WP
SCL
SDA
5020 FHD F01
DOUT
ACK
VCC
VSS
WORD ADDRESS
BUFFERS
SENSE AMPS
SHIFT REGISTERS
COLUMN
DECODERS
TSSOP Package (U)
(* Available for 24WC01 and 24WC02 only)
SDA
START/STOP
LOGIC
A0
A1
A2
VSS
1
2
3
4
8
7
6
5
VCC
WP
SCL
SDA
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
24WCXX F03
DATA IN STORAGE
HIGH VOLTAGE/
TIMING CONTROL
* Catalyst Semiconductor is licensed by Philips Corporation to carry the I
2
C Bus Protocol.
© 1999 by Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
1
Doc. No. 25051-00 3/98
S-1
CATALYST [ CATALYST SEMICONDUCTOR ]
