(CAT24WC32 / CAT24WC64) 32K / 64K-Bit IC Serial CMOS EEPROM
w
m o c . CAT24WC32/64 U 4 32K/64K-Bit I C Serial t CMOS EEPROM e e FEATURES h S 400 KHza I C bus compatible* t volt re...
Description
w
m o c . CAT24WC32/64 U 4 32K/64K-Bit I C Serial t CMOS EEPROM e e FEATURES h S 400 KHza I C bus compatible* t volt read and write operation a5.5 1.8 to Cascadable .D for up to eight devices w page write buffer w 32/64-Byte Self-timed write cycle with auto-clear
2
I I I I I
2
I Commercial, industrial, automotive and
extended automotive temperature ranges
I Write protection
– Entire array protected when WP at VIH
I 1,000,000 Program/erase cycles I 100 year data retention
I 8-pin DIP or 8-pin SOIC I Schmitt trigger inputs for noise protection
DESCRIPTION
The CAT24WC32/64 is a 32K/64K-bit Serial CMOS E2PROM internally organized as 4096/8192 words of 8 bits each. Catalyst’s advanced CMOS technology substantially reduces device power requirements. The
CAT24WC32/64 features a 32-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, L, GL)
A0 A1 A2 VSS 1 2 3 4 8 7 6 5 VCC WP SCL SDA
EXTERNAL LOAD
SOIC Package (J, W, K, X, GW, GX)
A0 A1 A2 VSS 1 2 3 4 8 7 6
PIN FUNCTIONS
Pin Name A0, A1, A2 SDA SCL WP VCC VSS
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5
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VCC WP SCL SDA
.D
t a
S a
e h
BLOCK DIAGRAM
DOUT ACK SENSE AMPS SHIFT REGISTERS
t e
U 4
.c
m o
VCC VSS WORD ADDRESS BUFFERS COLUMN DECODERS 256 SDA START/STOP LOGIC
E2PROM XDEC 128/256 128/256 X 256 WP CONTROL LOGIC
Function
DATA IN STORAGE
Device Address Inputs Serial Data/Address Serial Clock Write Protect +1.8V to +5.5V Power ...
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