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AT45DB021 - 2-Megabit 2.7-volt Only Serial DataFlash

This page provides the datasheet information for the AT45DB021, a member of the AT4-5DB 2-Megabit 2.7-volt Only Serial DataFlash family.

Datasheet Summary

Description

The AT45DB021 is a 2.7-volt only, serial interface Flash memory suitable for in-system reprogramming.

Its 2,162,688 bits of memory are organized as 1024 pages of 264-bytes each.

In addition to the main memory, the AT45DB021 also contains two SRAM data buffers of 264-bytes each.

Features

  • Single 2.7V - 3.6V Supply.
  • Serial Interface Architecture.
  • Page Program Operation.
  • Single Cycle Reprogram (Erase and Program).
  • 1024 Pages (264 Bytes/Page) Main Memory Two 264-Byte SRAM Data Buffers.
  • Allows Receiving of Data while Reprogramming of Non-Volatile Memory Internal Program and Control Timer Fast Page Program Time.
  • 7 ms Typica.

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Datasheet preview – AT45DB021

Datasheet Details

Part number AT45DB021
Manufacturer ATMEL Corporation
File Size 201.43 KB
Description 2-Megabit 2.7-volt Only Serial DataFlash
Datasheet download datasheet AT45DB021 Datasheet
Additional preview pages of the AT45DB021 datasheet.

📁 Similar Datasheet

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Other Datasheets by ATMEL Corporation
  • AT45DB021A - 2-megabit 2.7-volt Only Serial DataFlash
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  • AT45DB021D - 2-megabit 2.7-volt DataFlash
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  • AT45DB011B - 1-megabit 2.7-volt Only DataFlash
  • AT45DB011D - 1-megabit 2.7-volt DataFlash
  • AT45DB041 - 4-Megabit 2.7-volt Only Serial DataFlash
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Full PDF Text Transcription

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Features • Single 2.7V - 3.6V Supply • Serial Interface Architecture • Page Program Operation • • • • • • • • • • – Single Cycle Reprogram (Erase and Program) – 1024 Pages (264 Bytes/Page) Main Memory Two 264-Byte SRAM Data Buffers – Allows Receiving of Data while Reprogramming of Non-Volatile Memory Internal Program and Control Timer Fast Page Program Time – 7 ms Typical 120 µs Typical Page to Buffer Transfer Time Low Power Dissipation – 4 mA Active Read Current Typical – 5 µA CMOS Standby Current Typical 5 MHz Max Clock Frequency Hardware Data Protection Feature Serial Peripheral Interface (SPI) Compatible – Modes 0 and 3 CMOS and TTL Compatible Inputs and Outputs Commercial and Industrial Temperature Ranges 2-Megabit 2.
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