CAT24WC128_05 Datasheet, PDF (1/9 Pages) Catalyst Semiconductor – 128K-Bit I2C Serial CMOS EEPROM

CAT24WC128
128K-Bit I²C Serial CMOS EEPROM
FEATURES
I 1MHz I²C Bus Compatible*
I 1.8 to 6 Volt Operation
I Low Power CMOS Technology
I 64-Byte Page Write Buffer
I Self-Timed Write Cycle with Auto-Clear
I Commercial, Industrial and Automotive
Temperature Ranges
DESCRIPTION
The CAT24WC128 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
ALOGEN ^FR
LEA
D
F
R
E
E
TM
I Write Protect Feature
– Entire Array Protected When WP at V
IH
I 100,000 Program/Erase Cycles
I 100 Year Data Retention
I 8-Pin DIP, 8-Pin SOIC or 14-pin TSSOP
I "Green" Package Options Available
CAT24WC128 features a 64-byte page write buffer.
The device operates via the I²C bus serial interface and
is available in 8-pin DIP, 8-pin SOIC or 14-pin TSSOP
packages.
PIN CONFIGURATION
BLOCK DIAGRAM
DIP Package (P, L)
NC ¹
NC 2
8 VCC
7 WP ^{TSSOP Package (U14, Y14)}
NC 3
VSS 4
6
SCL _NC
1
14
VCC
5
SDA _NC
2
13
WP
NC 3 12 NC
NC 4 11 NC
SOIC Package (J, W, K, X) ^{NC 5 10 NC}
NC 6
9 SCL
NC ¹
NC ²
8
VCC _VSS
7
8
SDA
7 _WP
NC ³
6 _SCL
VSS ⁴
5 _SDA
EXTERNAL LOAD
VCC
VSS
DOUT
ACK
WORD ADDRESS
BUFFERS
SDA
START/STOP
LOGIC
XDEC
CONTROL
WP
LOGIC
PIN FUNCTIONS
Pin Name
Function
SDA
Serial Data/Address
SCL
Serial Clock
WP
Write Protect
V_CC
+1.8V to +6V Power Supply
SCL
STATE COUNTERS
V_SS
Ground
SENSE AMPS
SHIFT REGISTERS
COLUMN
DECODERS
512
EEPROM
256
256X512
DATA IN STORAGE
HIGH VOLTAGE/
TIMING CONTROL
* Catalyst Semiconductor is licensed by Philips Corporation to carry the I²C Bus Protocol.
© 2005 by Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
1
Doc. No. 1038, Rev. E