AT25SF041B-MHB-T

Memory IC Overview

The AT25SF041B-MHB-T is a 4 Mbit (512 K x 8) SPI NOR flash memory manufactured by Renesas Electronics. It operates within a voltage range of 2.7 V to 3.6 V and supports clock frequencies up to 108 MHz. The device features single, dual, and quad SPI interface modes for flexible data transfer. It is housed in an 8-lead UDFN package measuring 2x3 mm and is designed for surface mount installation. The component functions reliably across an industrial temperature range of -40°C to +85°C.

Memory IC Feature Summary

• Supports Single, Dual, and Quad I/O SPI interface modes for versatile system integration
• Enables Execute-In-Place (XiP) operations with continuous read, wrap, and burst modes
• Includes three security register pages for unique device serialization and key storage

Memory IC Applications

• Firmware storage for embedded microcontrollers
• Parameter configuration and calibration data retention
• OTA upgrade image staging

Memory IC Procurement Notes

Verify the specific suffix 'MHB' corresponds to the 2x3 mm UDFN tape and reel packaging format. Confirm the manufacturer designation aligns with current Renesas or Dialog Semiconductor product lines. Ensure the ordering part number matches the required voltage and temperature specifications for your target application environment.

Memory IC Selection Notes

Select this component when a compact 2x3 mm footprint is required for 4 Mbit non-volatile storage. It is suitable for designs needing high-speed serial access via standard or multi-I/O SPI protocols. Consider its operating voltage constraints and industrial temperature rating during system architecture planning.

Memory IC Part Context

This device belongs to the AT25SF041B series of SPI NOR flash memories. The series provides optimized erase block sizes for code and data storage applications. It maintains pin compatibility with previous generations while offering enhanced performance through higher clock speeds and additional security features.

Memory IC Replacement Considerations

Check for AT25SF041 variants with different package suffixes if the UDFN form factor is not mandatory. Verify cross-compatibility with other 4 Mbit SPI NOR devices from alternative manufacturers regarding command set and pinout.