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AT45DB021B - 2-megabit 2.7-volt Only DataFlash

General Description

The AT45DB021B is a 2.7-volt only, serial interface Flash memory ideally suited for a wide variety of digital voice-, image-, program code- and data-storage applications.

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

Key Features

  • Single 2.7V - 3.6V Supply Serial Peripheral Interface (SPI) Compatible 20 MHz Max Clock Frequency Page Program Operation.
  • Single Cycle Reprogram (Erase and Program).
  • 1024 Pages (264 Bytes/Page) Main Memory Supports Page and Block Erase Operations Two 264-byte SRAM Data Buffers.
  • Allows Receiving of Data while Reprogramming of Nonvolatile Memory Continuous Read Capability through Entire Array.
  • Ideal for Code Shadowing Appl.

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📁 Similar Datasheet

Part Number Description Manufacturer
AT45DB021D 2-megabit 2.7V Minimum DataFlash Adesto
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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
AT45DB021D 2-megabit 2.7-volt 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.

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Features • • • • Single 2.7V - 3.6V Supply Serial Peripheral Interface (SPI) Compatible 20 MHz Max Clock Frequency Page Program Operation – Single Cycle Reprogram (Erase and Program) – 1024 Pages (264 Bytes/Page) Main Memory Supports Page and Block Erase Operations Two 264-byte SRAM Data Buffers – Allows Receiving of Data while Reprogramming of Nonvolatile Memory Continuous Read Capability through Entire Array – Ideal for Code Shadowing Applications Low Power Dissipation – 4 mA Active Read Current Typical – 2 µA CMOS Standby Current Typical Hardware Data Protection Feature 100% Compatible to AT45DB021 and AT45DB021A 5.0V-tolerant Inputs: SI, SCK, CS, RESET and WP Pins Commercial and Industrial Temperature Ranges Green (Pb/Halide-free/RoHS Compliant) Packaging Options • • • • 2-megabit 2.