CAT24WC01/02/04/08/16
1K/2K/4K/8K/16K-Bit Serial EEPROM
FEATURES
s Self-Timed Write Cycle with Auto-Clear
s 400 kHz I2C Bus Compatible*
s 1,000,000 Program/Erase Cycles
s 1.8 to 5.5Volt Operation
s 100 Year Data Retention
s Low Power CMOS Technology
s 8-pin DIP, SOIC, TSSOP and MSOP packages
s Write Protect Feature
s Commercial, Industrial, Automotive and
s Page Write Buffer
Extended Temperature Ranges
DESCRIPTION
08/16 feature 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,
SOIC, TSSOP and MSOP packages.
The CAT24WC01/02/04/08/16 is a 1K/2K/4K/8K/16Kbit Serial CMOS EEPROM internally organized as 128/
256/512/1024/2048 words of 8 bits each. Catalyst’s
advanced CMOS technology substantially reduces device power requirements. The the CAT24WC01/02/04/
PIN CONFIGURATION
VSS
1
2
3
4
8
7
6
5
d
e
u
BLOCK DIAGRAM
SOIC Package (J, W, GW)
DIP Package (P, L, GL)
A0
A1
A2
ts
r
a
P
- "Green" package option available
— Entire Array Protected When WP at VIH
VCC
WP
SCL
SDA
A0
A1
A2
VSS
1
2
3
4
n
o
c
in
t
8
7
6
5
VCC
WP
SCL
SDA
5020 FHD F01
EXTERNAL LOAD
SENSE AMPS
SHIFT REGISTERS
DOUT
ACK
VCC
VSS
WORD ADDRESS
BUFFERS
COLUMN
DECODERS
TSSOP Package (U, Y, GY)
(MSOP and TSSOP available for CAT24WC01,
CAT24WC02 and CAT24WC04 only)
MSOP Package (R, Z, GZ)
A0
A1
A2
VSS
1
2
8
7
VCC
WP
3
4
6
5
SCL
SDA
is
D
A0
A1
A2
VSS
1
2
3
4
8
7
6
5
SDA
VCC
WP
SCL
SDA WP
START/STOP
LOGIC
XDEC
E2PROM
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 +5.5V Power Supply
VSS
DATA IN STORAGE
Ground
HIGH VOLTAGE/
TIMING CONTROL
SCL
A0
A1
A2
STATE COUNTERS
SLAVE
ADDRESS
COMPARATORS
* Catalyst Semiconductor is licensed by Philips Corporation to carry the I2C Bus Protocol.
© Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
1
Doc. No. 1022, Rev. O
