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

Manufacturer: Atmel (now Microchip Technology)

Datasheet Details

Part number	AT29C257
Manufacturer	Atmel (now Microchip Technology)
File Size	562.20 KB
Description	256K 32K x 8 5-volt Only CMOS Flash Memory
Datasheet	AT29C257 Datasheet

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.

AT29C257.

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.

Part Number	Description
AT29C256	256K 32K x 8 5-volt Only CMOS Flash Memory
AT29C010	1 Megabit 128K x 8 5-volt Only CMOS Flash Memory
AT29C010A	1 Megabit 128K x 8 5-volt Only CMOS Flash Memory
AT29C020	2-Megabit 256K x 8 5-volt Only CMOS Flash Memory
AT29C040A	4-Megabit 512K x 8 5-volt Only 256-Byte Sector CMOS Flash Memory
AT29C1024	1 Megabit 64K x 16 5-volt Only CMOS Flash Memory
AT29C432	4 Megabit 5-volt Flash with 256K E2PROM Memory
AT29C512	512K 64K x 8 5-volt Only CMOS Flash Memory
AT29BV010A	1 Megabit 128K x 8 Single 2.7-volt Battery-Voltage CMOS Flash
AT29BV020	2 Megabit 256K x 8 Single 2.7-volt Battery-Voltage CMOS Flash Memory