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AT45DB021D - 2-megabit 2.7-volt DataFlash

General Description

The AT45DB021D is a 2.7V, serial-interface Flash memory ideally suited for a wide variety of digital voice-, image-, program code- and data-storage applications.

The AT45DB021D supports RapidS serial interface for applications requiring very high speed operations.

Key Features

  • Single 2.7V to 3.6V Supply.
  • RapidS® Serial Interface: 66 MHz Maximum Clock Frequency.
  • SPI Compatible Modes 0 and 3.
  • User Configurable Page Size.
  • 256 Bytes per Page.
  • 264 Bytes per Page Page Program Operation.
  • Intelligent Programming Operation.
  • 1,024 Pages (256/264 Bytes/Page) Main Memory Flexible Erase Options.
  • Page Erase (256 Bytes).
  • Block Erase (2 Kbytes).
  • Sector Erase (32 Kbytes).
  • Chip.

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Other Datasheets by Atmel (now Microchip Technology)

Part Number Description
AT45DB021 2-Megabit 2.7-volt Only Serial DataFlash
AT45DB021A 2-megabit 2.7-volt Only Serial DataFlash
AT45DB021B 2-megabit 2.7-volt Only DataFlash
AT45DB011 1-Megabit 2.7-volt Only Serial DataFlash
AT45DB011B 1-megabit 2.7-volt Only DataFlash

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

View original datasheet text
Features • Single 2.7V to 3.6V Supply • RapidS® Serial Interface: 66 MHz Maximum Clock Frequency – SPI Compatible Modes 0 and 3 • User Configurable Page Size – 256 Bytes per Page – 264 Bytes per Page Page Program Operation – Intelligent Programming Operation – 1,024 Pages (256/264 Bytes/Page) Main Memory Flexible Erase Options – Page Erase (256 Bytes) – Block Erase (2 Kbytes) – Sector Erase (32 Kbytes) – Chip Erase (2 Mbits) One SRAM Data Buffer (256/264 Bytes) Continuous Read Capability through Entire Array – Ideal for Code Shadowing Applications Low-power Dissipation – 7 mA Active Read Current Typical – 25 µA Standby Current Typical – 5 µA Deep Power-down Typical Hardware and Software Data Protection Features – Individual Sector Sector Lockdown for Secure Code and Data Storage www.