Overview
Description
The AT25XV041B 4Mbit SPI Serial Flash memory IC is a member of our System Enhancing class of code and data storage solutions with an extended operating range of up to 4.4V. The device is designed for all system memory tasks ranging from boot/code shadowing to data logging and includes the 256-byte page Erase feature that enables efficient, lower energy data logging.
Features
- Universally compatible pinout and command set
- Low Sleep power for bootloader tasks
- Active Interrupt option that reduces MCU overhead
- Standard block architecture with added 256-byte page erase for energy-efficient data logging
Comparison
Applications
Design & Development
Models
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.

Support
Support Communities
Support Communities
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MTBF/FIT Data for AT25XV041B-XMHV-T
Can you provide MTBF/FIT data for AT25XV041B-XMHV-T serial SPI flash memory?
Oct 5, 2021 -
Unclear datasheet AT25XV041B
Dear Support, I would be very happy if you could answer the following 3 questions as we would like to start with a 0-series production. 1) Is the AT25XV041B soon going to be marked end of life / not recommended for future development? 2) On page 46, the AT25XV041B ...
Feb 18, 2022 -
QSPI erase page
Hi Guys, For my project I am using QSPI to read erase and write to an external flash. the flash chip is the AT25XV041B. This chip has also the capability to erase 1 page of 256 bytes (command 81h). But the QSPI stack does not have a command listed in ...
Nov 22, 2024