Preliminary
CAT24WC03/05/09/17
2K/4K/8K/16K-Bit Serial E2PROM
FEATURES
■ 400 KHZ I2C Bus Compatible*
■ 1.8 to 6.0Volt Operation
■ Self-Timed Write Cycle with Auto-Clear
■ 1,000,000 Program/Erase Cycles
■ 100 Year Data Retention
■ Low Power CMOS Technology
■ 8-pin DIP, 8-pin SOIC and 8-pin TSSOP Package
■ Write Protect Feature
–Top 1/2 Array Protected When WP at VIH
■ Commercial, Industrial and Automotive
Temperature Ranges
■ 16-Byte Page Write Buffer
DESCRIPTION
ments. The CAT24WC03/05/09/17 features a 16-byte
page write buffer. The device operates via the I2C bus
serial interface, has a special write protection feature,
and is available in 8-pin DIP or 8-pin SOIC
TheCAT24WC03/05/09/17isa2K/4K/8K/16K-bitSerial
CMOS E2PROM internally organized as 256/512/1024/
2048 words of 8 bits each. Catalyst’s advanced CMOS
technology substantially reduces device power require-
PIN CONFIGURATION
BLOCK DIAGRAM
EXTERNAL LOAD
DIP Package (P)
SOIC Package (J)
SENSE AMPS
SHIFT REGISTERS
D
1
2
3
4
8
7
6
5
1
2
3
4
8
7
6
5
OUT
A
A
A
V
A
A
A
0
1
2
CC
0
1
2
V
CC
WP
ACK
WP
V
SCL
SDA
CC
SCL
SDA
WORD ADDRESS
BUFFERS
COLUMN
DECODERS
V
V
SS
SS
V
SS
START/STOP
TSSOP Package (U)
SDA
WP
(** Available for 24WC03 only)
LOGIC
1
2
3
4
8
7
6
5
A
A
A
0
1
2
V
CC
WP
E2PROM
SS
XDEC
SCL
SDA
CONTROL
LOGIC
V
SS
PIN FUNCTIONS
DATA IN STORAGE
Pin Name
Function
A0, A1, A2
SDA
Device Address Inputs
Serial Data/Address
Serial Clock
HIGH VOLTAGE/
TIMING CONTROL
SCL
SCL
STATE COUNTERS
WP
Write Protect
SLAVE
ADDRESS
COMPARATORS
A
A1
A2
0
VCC
+1.8V to +6.0V Power Supply
Ground
VSS
24WCXX F03
2
* Catalyst Semiconductor is licensed by Philips Corporation to carry the I C Bus Protocol.
© 1999 by Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
Doc. No. 25063-00 2/98 S-1
1