AT25256 - SPI Serial EEPROMs

Atmel (now Microchip Technology)

Download the AT25256 datasheet PDF. This datasheet also covers the AT25128 variant, as both devices belong to the same spi serial eeproms family and are provided as variant models within a single manufacturer datasheet.

📥 Download Datasheet

AT25256 spi serial eeproms by Atmel (now Microchip Technology) - Datasheet Preview — Note: The manufacturer provides a single datasheet file (AT25128-Atmel.pdf) that lists specifications for multiple related part numbers.

Datasheet Details

Part number	AT25256
Manufacturer	Atmel (now Microchip Technology)
File Size	462.76 KB
Description	SPI Serial EEPROMs
Datasheet	AT25256 Datasheet

General Description

The AT25128/256 provides 131,072/262,144 bits of serial electrically-erasable programmable read only memory (EEPROM) organized as 16,384/32,768 words of 8 bits each.

The device is optimized for use in many industrial and commercial applications where low-power and low-voltage operation are essential.

The devices are available in space saving 8-lead PDIP (AT25128/256), 8-lead EIAJ SOIC (AT25128/256), 8-lead and 16-lead JEDEC SOIC (AT25128), 14-lead TSSOP (AT25128), 20-lead TSSOP (AT25128/256), and 8-lead Leadless Array (AT25256) packages.

Key Features

Serial Peripheral Interface (SPI) Compatible.
Supports SPI Modes 0 (0,0) and 3 (1,1).
Low-voltage and Standard-voltage Operation.
2.7 (VCC = 2.7V to 5.5V).
1.8 (VCC = 1.8V to 5.5V) 3 MHz Clock Rate 64-byte Page Mode and Byte Write Operation Block Write Protection.
Protect 1/4, 1/2, or Entire Array Write Protect (WP) Pin and Write Disable Instructions for Both Har.

📁 Similar Datasheet

Part Number	Description	Manufacturer
AT25256A	SPI Serial EEPROMs	ATMEL Corporation
AT25256B	SPI Serial EEPROM	Microchip
AT25256B	SPI Serial EEPROM	ATMEL Corporation

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