CAT24C44PTE13 datasheet(1/8 Pages) CATALYST

No. de pieza	CAT24C44PTE13

Descripción Electrónicos	256-Bit Serial Nonvolatile CMOS Static RAM

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Fabricante Electrónico	CATALYST [Catalyst Semiconductor]

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CAT24C44

256-Bit Serial Nonvolatile CMOS Static RAM

FEATURES

s Single 5V Supply

s Infinite E2PROM to RAM Recall

s CMOS and TTL Compatible I/O

s Low CMOS Power Consumption:

–Active: 3 mA Max.

–Standby: 30

µA Max.

s Power Up/Down Protection

s 10 Year Data Retention

s JEDEC Standard Pinouts:

–8-pin DIP

–8-pin SOIC

s 100,000 Program/Erase Cycles (E2PROM)

s Auto Recall on Power-up

s Commercial, Industrial and Automotive

Temperature Ranges

DESCRIPTION

The CAT24C44 Serial NVRAM is a 256-bit nonvolatile

memory organized as 16 words x 16 bits. The high

speed Static RAM array is bit for bit backed up by a

nonvolatile E2PROM array which allows for easy trans-

fer of data from RAM array to E2PROM (STORE) and

from E2PROM to RAM (RECALL). STORE operations

are completed in 10ms max. and RECALL operations

typically within 1.5

µs. The CAT24C44 features unlimited

RAM write operations either through external RAM

writes or internal recalls from E2PROM. Internal false

PIN CONFIGURATION

store protection circuitry prohibits STORE operations

when VCC is less than 3.5V (typical) ensuring E2PROM

data integrity.

The CAT24C44 is manufactured using Catalyst’s ad-

vanced CMOS floating gate technology. It is designed to

endure 100,000 program/erase cycles (E2PROM) and

has a data retention of 10 years. The device is available

in JEDEC approved 8-pin plastic DIP and SOIC pack-

ages.

PIN FUNCTIONS

Pin Name

Function

SK

Serial Clock

DI

Serial Input

DO

Serial Data Output

CE

Chip Enable

RECALL

Recall

STORE

Store

VCC

+5V

VSS

Ground

SOIC Package (S)

DI

DO

1

2

3

4

CE

SK

RECALL

VSS

VCC

STORE

8

7

6

5

1

2

3

4

8

7

6

5

CE

SK

DI

DO

VCC

RECALL

VSS

STORE

DIP Package (P)

5157 FHD F01

Characteristics subject to change without notice

Doc. No. 25019-0A 2/98 N-1

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CAT24C44PTE13 Datasheet(PDF) 1 Page - Catalyst Semiconductor

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