Datasheet > CAT24C44SI

CAT24C44SI

更新时间： 2024-10-27 23:39:31

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页数	文件大小	规格书
8页	76K
描述
NVRAM (EEPROM Based)

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数据手册

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CAT24C44SI 数据手册

CAT24C44

256-Bit Serial Nonvolatile CMOS Static RAM

FEATURES

■ Single 5V Supply

■ Infinite E²PROM to RAM Recall

■ JEDEC Standard Pinouts:

–8-pin DIP

–8-pin SOIC

■ 100,000 Program/Erase Cycles (E²PROM)

■ CMOS and TTL Compatible I/O

■ Low CMOS Power Consumption:

–Active: 3 mA Max.

■ Auto Recall on Power-up

–Standby: 30 µA Max.

■ Commercial, Industrial and Automotive

Temperature Ranges

■ Power Up/Down Protection

■ 10 Year Data Retention

DESCRIPTION

store protection circuitry prohibits STORE operations

when V_CCis less than 3.5V (typical) ensuring E²PROM

data integrity.

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

typicallywithin1.5µs.TheCAT24C44featuresunlimited

RAM write operations either through external RAM

writes or internal recalls from E²PROM. Internal false

The CAT24C44 is manufactured using Catalyst’s ad-

vancedCMOSfloatinggatetechnology. Itisdesignedto

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 CONFIGURATION

PIN FUNCTIONS

Pin Name

Function

Serial Clock

Serial Input

Serial Data Output

Chip Enable

Recall

DIP Package (P)

SOIC Package (S)

STORE

RECALL

STORE

V_CC

5157 FHD F01

Store

+5V

V_SS

Ground

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

Characteristics subject to change without notice

This Material Copyrighted by Its Respective Manufacturer

12 3 4 5 6 7 8

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