CAT24WC129 Datasheet, PDF (1/8 Pages) Catalyst Semiconductor – 128K-Bit I2C Serial CMOS E2PROM

Preliminary
CAT24WC129
128K-Bit I²C Serial CMOS E²PROM
FEATURES
s 1MHz I²C Bus Compatible*
s 1.8 to 6 Volt Operation
s Low Power CMOS Technology
s 64-Byte Page Write Buffer
s Self-Timed Write Cycle with Auto-Clear
s Commercial, Industrial and Automotive
Temperature Ranges
DESCRIPTION
The CAT24WC129 is a 128K-bit Serial CMOS E²PROM
internally organized as 16384 words of 8 bits each.
Catalyst’s advanced CMOS technology substantially
reduces device power requirements. The
s Write Protect Feature
– Top 1/4 Array Protected When WP at V_IH
s 100,000 Program/Erase Cycles
s 100 Year Data Retention
s 8-Pin DIP or 8-Pin SOIC
CAT24WC129 features a 64-byte page write buffer. The
device operates via the I²C bus serial interface and is
available in 8-pin DIP or 8-pin SOIC packages.
PIN CONFIGURATION
DIP Package (P)
NC ¹
NC 2
NC 3
VSS 4
8 VCC
7 WP
6 SCL
5 SDA
SOIC Package (J,K)
NC ¹
NC ²
NC ³
VSS 4
8 VCC
7 WP
6 SCL
5 SDA
24WC129 F01
PIN FUNCTIONS
Pin Name
Function
SDA
Serial Data/Address
SCL
Serial Clock
WP
Write Protect
VCC
+1.8V to +6V Power Supply
VSS
Ground
BLOCK DIAGRAM
EXTERNAL LOAD
VCC
VSS
DOUT
ACK
WORD ADDRESS
BUFFERS
SDA
START/STOP
LOGIC
SENSE AMPS
SHIFT REGISTERS
COLUMN
DECODERS
512
XDEC 256
E²PROM
256X512
CONTROL
WP
LOGIC
SCL
STATE COUNTERS
DATA IN STORAGE
HIGH VOLTAGE/
TIMING CONTROL
* Catalyst Semiconductor is licensed by Philips Corporation to carry the I²C Bus Protocol.
24WC129 F02
© 1998 by Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
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Doc. No. 25065-00 6/99 S-1