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AT26DF321 Datasheet (AT25DF321 / AT26DF321) 32M-Bit Serial Firmware Dataflash Memory

Manufacturer: Atmel (now Microchip Technology)

General Description

The AT26DF321 is a serial interface Flash memory device designed for use in a wide variety of high-volume consumer based applications in which program code is shadowed from Flash memory into embedded or external RAM for execution.

The flexible erase architecture of the AT26DF321, with its erase granularity as small as 4-Kbytes, makes it ideal for data storage as well, eliminating the need for additional data storage EEPROM devices.

The physical sectoring and the erase block sizes of the AT26DF321 have been optimized to meet the needs of today's code and data storage applications.

Overview

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Key Features

  • Single 2.7V - 3.6V Supply.
  • Serial Peripheral Interface (SPI) Compatible.
  • Supports SPI Modes 0 and 3.
  • 66 MHz Maximum Clock Frequency.
  • Flexible, Uniform Erase Architecture.
  • 4-Kbyte Blocks.
  • 32-Kbyte Blocks.
  • 64-Kbyte Blocks.
  • Full Chip Erase Individual Sector Protection with Global Protect/Unprotect Feature.
  • Sixty-Four 64-Kbyte Physical Sectors Hardware Controlled Locking of Protected Sectors Flexible Programm.