CAT25C16ALA-12T datasheet, PDF

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CAT25C16ALA-12T: Description16K-Bit CMOS PARALLEL E2PROM; File Size415KB，10 Pages; ManufacturerCatalyst; Websitehttp://www.catalyst-semiconductor.com/

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CAT25C16ALA-12T Overview

16K-Bit CMOS PARALLEL E2PROM

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CAT28C16A

16K-Bit CMOS PARALLEL EEPROM

FEATURES

Fast read access times: 90 ns, 120 ns, 200 ns

Low power CMOS cissipation:

GEN

ALO

End of write detection:

DATA

polling

Hardware write protection

CMOS and TTL compatible I/O

10,000 or 100,000 Program/erase cycles

10 or 100 year data retention

Commercial, industrial and automotive

–Active: 25 mA Max.

–Standby: 100

A Max.

Simple write operation:

–On-chip address and data latches

–Self-timed write cycle with auto-clear

Fast write cycle time: 10ms max

temperature ranges

DESCRIPTION

The CAT28C16A is a fast, low power, 5V-only CMOS

Parallel EEPROM organized as 2K x 8-bits. It requires a

simple interface for in-system programming. On-chip

address and data latches, self-timed write cycle with

auto-clear and V

power up/down write protection

eliminate additional timing and protection hardware.

DATA

Polling signals the start and end of the self-timed

write cycle. Additionally, the CAT28C16A features hard-

ware write protection.

The CAT28C16A is manufactured using Catalyst’s ad-

vanced CMOS floating gate technology. It is designed to

endure 10,000 program/erase cycles and has a data

retention of 10 years. The device is available in JEDEC

approved 24-pin DIP and SOIC or 32-pin PLCC pack-

ages.

BLOCK DIAGRAM

A4–A10

ADDR. BUFFER

& LATCHES

INADVERTENT

WRITE

PROTECTION

ROW

DECODER

2,048 x 8

EEPROM

ARRAY

VCC

HIGH VOLTAGE

GENERATOR

CONTROL

LOGIC

I/O BUFFERS

TIMER

DATA POLLING

I/O0–I/O7

A0–A3

ADDR. BUFFER

& LATCHES

COLUMN

DECODER

Characteristics subject to change without notice

Doc. No. 1076, Rev. D

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