CAT24C01B
K-Bit Serial EEPROM
FEATURES
I 2-Wire Serial Interface
I 1,000,000 Program/Erase Cycles
I 1.8 to 6.0Volt Operation
I 100 Year Data Retention
I Low Power CMOS Technology
I 8-pin DIP, 8-pin SOIC, 8 pin TSSOP or 8-pin MSOP
I 4-Byte Page Write Buffer
I Commercial, Industrial and Automotive
Temperature Ranges
I Self-Timed Write Cycle with Auto-Clear
I "Green" Package Options Available
DESCRIPTION
The CAT24C01B is a 1K-bit Serial CMOS EEPROM
internally organized as 128 words of 8 bits each. Catalyst’s
advanced CMOS technology substantially reduces device power requirements. The CAT24C01B features a
4-byte page write buffer. The device operates via a 2wire serial interface and is available in 8-pin DIP, 8-pin
SOIC, 8-pin TSSOP or 8-pin MSOP.
PIN CONFIGURATION
BLOCK DIAGRAM
SOIC Package (J, W, GW)
DIP Package (P, L, GL)
1
2
3
4
NC
NC
NC
VSS
8
7
6
5
VCC
TEST
SCL
SDA
1
2
3
4
NC
NC
NC
VSS
8
7
6
5
EXTERNAL LOAD
VCC
TEST
SCL
SDA
VCC
VSS
SDA
MSOP Package (R, Z, GZ)
NC
NC
NC
VSS
1
2
3
4
8
7
6
5
TSSOP Package (U, Y, GY)
VCC NC
TEST NC
SCL
NC
SDA VSS
1
2
3
4
8
7
6
5
VCC
TEST
SCL
SDA
WORD ADDRESS
BUFFERS
COLUMN
DECODERS
START/STOP
LOGIC
XDEC
E2PROM
EEPROM
CONTROL
LOGIC
DATA IN STORAGE
PIN FUNCTIONS
Pin Name
SENSE AMPS
SHIFT REGISTERS
DOUT
ACK
Function
NC
SDA
Serial Data/Address
SCL
Serial Clock
VCC
+1.8V to +6.0V Power Supply
VSS
Ground
TEST
HIGH VOLTAGE/
TIMING CONTROL
No Connect
Test Input (GND, VCC or
Floating)
© 2005 by Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
SCL
1
STATE COUNTERS
Doc. No. 1081, Rev. E
