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AT25XE321D

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Product Longevity: 2030

32Mbit, 1.65 V to 3.6 V Range SPI Serial Flash Memory with Multi-I/O Support

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Overview

The AT25XE321D is a member of our System Enhancing class of code and data storage solutions designed for all system memory tasks ranging from boot/code shadowing to data logging of frequently changing data. It is universally compatible and includes extra features that save system energy and overhead.

AT25x, AT25DF
FushionHD
AT25x, AT25DF
FushionHD
  • Universally compatible pin out and command set
  • Low Sleep power for bootloader tasks
  • Continuous read, wrap and burst modes for XiP
  • Includes a controllable R/W SRAM buffer for maximum flexibility
  • Read-Modify-Write and Active Interrupt features reduce MCU overhead
  • Standard block architecture with added 256-byte page erase for energy efficient Data Logging
  • Eliminate MCU poling and reduce overhead with auto-alert Active Interrupt

Documentation

Design & Development

ECAD Models

Schematic symbols, PCB footprints, and 3D CAD models from SamacSys can be found by clicking on the CAD Model links in the Product Options table. If a symbol or model isn't available, it can be requested directly from SamacSys.

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Diagram of ECAD Models

Models
Type Title Date
Model - IBIS
AT25XE321D IBIS Model
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Model - Verilog
AT25XE321D Verilog Model.
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2 items

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Resources

Support Communities

  1. AT25XE321D

    Hi, I'm using AT25XE321D serial flash IC in one of the project I'm working on. I've gone through the datasheet of this and was trying to program it using SPI mode. But I found that even at the first step while trying to read the JEDEC ID ...

    Oct 8, 2021
  2. Recommended flash for DA1469x

    Hi Dialog,  I am using DA1469x and am looking for an 32Mbit QSPI flash.  Any recommendations?  Thanks!

    Jun 29, 2021
  3. DA1469x qspi flash replacements

    Hi, We have a product using the DA1469x with the MX25U3235F. We're currently looking for replacements for this part because of stock issues. I know you support the MX25U3235F, W25Q32FW, GD25LE32, but there are no stock of those either.  I was wondering if any of these chips could be ...

    Mar 27, 2021
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FAQs

  1. 32Mbit QSPI flash for BLE solutions

    Last Updated: 04/17/2023 Question: I am using DA1469x and am looking for an 32Mbit QSPI flash for BLE solutions. Answer: Both the 32 Mbit AT25FF321A and AT25XE321D are fully qualified on the DA1469x, including driver support.Both of these products are wide Vcc 1.65V to ...

    Apr 17, 2023