CAT24WC32 View Datasheet(PDF) - Catalyst Semiconductor => Onsemi

Part Name

Description

Manufacturer

CAT24WC32

32K/64K-Bit I2C Serial CMOS EEPROM

Catalyst Semiconductor => Onsemi 

CAT24WC32/64

32K/64K-Bit I2C Serial CMOS EEPROM

FEATURES

I 400 KHz I2C bus compatible*

I 1.8 to 5.5 volt read and write operation

I Cascadable for up to eight devices

I 32/64-Byte page write buffer

I Self-timed write cycle with auto-clear

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 sub-

stantially reduces device power requirements. The

I Commercial, industrial, automotive and

extended automotive temperature ranges

I Write protection

– Entire array protected when WP at V

IH

I 1,000,000 Program/erase cycles

I 100 year data retention

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 1

A1 2

A2 3

VSS 4

8 VCC

7 WP

6 SCL

5 SDA

SOIC Package (J, W, K, X, GW, GX)

A0 1

A1 2

A2 3

VSS 4

8 VCC

7 WP

6 SCL

5 SDA

BLOCK DIAGRAM

EXTERNAL LOAD

VCC

VSS

DOUT

ACK

WORD ADDRESS

BUFFERS

SDA

START/STOP

LOGIC

SENSE AMPS

SHIFT REGISTERS

COLUMN

DECODERS

256

E2PROM

XDEC 128/256 128/256 X 256

CONTROL

WP

LOGIC

PIN FUNCTIONS

Pin Name

Function

A0, A1, A2 Device Address Inputs

SDA

Serial Data/Address

SCL

Serial Clock

WP

Write Protect

SCL

STATE COUNTERS

VCC

+1.8V to +5.5V Power Supply

VSS

Ground

A0

SLAVE

A1

ADDRESS

A2

COMPARATORS

* Catalyst Semiconductor is licensed by Philips Corporation to carry the I2C Bus Protocol.

DATA IN STORAGE

HIGH VOLTAGE/

TIMING CONTROL

24WC32/64 F02

© 2005 by Catalyst Semiconductor, Inc.

Characteristics subject to change without notice

1

Doc. No. 1039, Rev. G

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