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AT45DB321B - 32-megabit 2.7-volt Only DataFlash

Download the AT45DB321B datasheet PDF. This datasheet also covers the AT4-5DB variant, as both devices belong to the same 32-megabit 2.7-volt only dataflash family and are provided as variant models within a single manufacturer datasheet.

General Description

The AT45DB321B 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 34,603,008 bits of memory are organized as 8192 pages of 528 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).
  • 8192 Pages (528 Bytes/Page) Main Memory.
  • Supports Page and Block Erase Operations.
  • Two 528-byte SRAM Data Buffers.
  • Allows Receiving of Data while Reprogramming of Nonvolatile Memory.
  • Continuous Read Capability through Entire Array.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (AT4-5DB-321B.pdf) that lists specifications for multiple related part numbers.

Full PDF Text Transcription for AT45DB321B (Reference)

Note: Below is a high-fidelity text extraction (approx. 800 characters) for AT45DB321B. For precise diagrams, and layout, please refer to the original PDF.

Features • Single 2.7V - 3.6V Supply • Serial Peripheral Interface (SPI) Compatible • 20 MHz Max Clock Frequency • Page Program Operation – Single Cycle Reprogram (Erase ...

View more extracted text
ck Frequency • Page Program Operation – Single Cycle Reprogram (Erase and Program) – 8192 Pages (528 Bytes/Page) Main Memory • Supports Page and Block Erase Operations • Two 528-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 AT45DB321 • 5.0V-tolerant Inputs: SI, SCK, CS, RESET and WP Pins • Commercial and Industrial Temperature Ranges Descrip

📁 Similar Datasheet

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