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AT29C257 - 256K 32K x 8 5-volt Only CMOS Flash Memory

Datasheet Summary

Description

The AT29C257 is a 5-volt-only in-system Flash programmable and erasable read only memory (PEROM).

Its 256K of memory is organized as 32,768 words by 8 bits.

Manufactured with Atmel’s advanced nonvolatile CMOS technology, the device offers access times to 70 ns with power dissipation of just 275 mW.

Features

  • Fast Read Access Time - 70 ns 5-Volt-Only Reprogramming Page Program Operation Single Cycle Reprogram (Erase and Program) Internal Address and Data Latches for 64-Bytes Internal Program Control and Timer Hardware and Software Data Protection Fast Program Cycle Times Page (64-Byte) Program Time - 10 ms Chip Erase Time - 10 ms DATA Polling for End of Program Detection Low Power.

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Datasheet Details

Part number AT29C257
Manufacturer ATMEL Corporation
File Size 562.20 KB
Description 256K 32K x 8 5-volt Only CMOS Flash Memory
Datasheet download datasheet AT29C257 Datasheet
Additional preview pages of the AT29C257 datasheet.

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Full PDF Text Transcription

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AT29C257 Features • • • • • • • • • • • • Fast Read Access Time - 70 ns 5-Volt-Only Reprogramming Page Program Operation Single Cycle Reprogram (Erase and Program) Internal Address and Data Latches for 64-Bytes Internal Program Control and Timer Hardware and Software Data Protection Fast Program Cycle Times Page (64-Byte) Program Time - 10 ms Chip Erase Time - 10 ms DATA Polling for End of Program Detection Low Power Dissipation 50 mA Active Current 300 µA CMOS Standby Current Typical Endurance > 10,000 Cycles Single 5V ± 10% Supply CMOS and TTL Compatible Inputs and Outputs Pin-Compatible with AT29C010A and AT29C512 for Easy System Upgrades 256K (32K x 8) 5-volt Only CMOS Flash Memory Description The AT29C257 is a 5-volt-only in-system Flash programmable and erasable read only memory
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