AT25SF041B-DWF

Memory IC Overview

The AT25SF041B-DWF is a 4 Mbit SPI NOR flash memory component manufactured by Renesas Electronics Corporation. It operates within a supply voltage range of 2.7 V to 3.6 V and supports clock frequencies up to 108 MHz. The device features a 512 K x 8 organization and utilizes an 8-DWF package. It is designed for single, dual, and quad SPI interface operations with an operating temperature range of -40°C to +85°C.

Memory IC Feature Summary

• Supports Single, Dual, and Quad I/O SPI interfaces for flexible data transfer modes.
• Enables Execute-in-Place (XiP) operation for direct code execution from the memory.
• Includes three security register pages for unique device serialization and key storage.

Memory IC Applications

• Code shadowing to embedded or external RAM for execution in 3V systems
• Storage of system-level Electronic Serial Numbers (ESN)
• Locked key storage applications

Memory IC Procurement Notes

Verify the specific suffix DWF against official Renesas documentation to confirm the exact package dimensions and tape/reel specifications. Ensure compatibility with the required operating voltage range of 2.7V to 3.6V and the industrial temperature grade of -40°C to +85°C for your design environment.

Memory IC Selection Notes

Select this component when a 4 Mbit density is required with support for high-speed Quad I/O and XiP capabilities. It is suitable for designs needing secure serialization features and standard block architecture compatible with other devices in the AT25SF series family.

Memory IC Part Context

This part belongs to the AT25SF041B series of SPI NOR flash memories. It shares the same core electrical characteristics and command set as other variants in the series, differing primarily in the physical package type. The DWF suffix indicates a specific surface-mount package configuration offered by Renesas.

Memory IC Replacement Considerations

Cross-reference with AT25SF041B-SHB-B or AT25SF041B-MHB-T if package changes are acceptable. Verify that the substitute maintains the 4 Mbit capacity and 108 MHz speed rating.