AT25SF041-SSHD-T

Memory IC Overview

The AT25SF041B-SHD-T is a 4-megabit SPI NOR flash memory integrated circuit manufactured by Renesas Electronics Corporation. It features a 512K x 8 organization and supports SPI and Quad I/O interfaces with a maximum clock frequency of 108 MHz. The device operates within a supply voltage range of 2.5V to 3.6V and is available in an 8-SOIC surface-mount package. It is designed for non-volatile data storage applications requiring reliable code execution.

Memory IC Feature Summary

• Supports standard SPI and high-speed Quad I/O modes for flexible interface compatibility
• Provides non-volatile storage suitable for shadowing program code into RAM for execution
• Includes security register pages for unique device serialization and system-level key storage

Memory IC Applications

• Code shadowing from flash memory to embedded or external RAM
• System-level Electronic Serial Number (ESN) storage
• Locked key storage and unique device serialization
• General-purpose code and data storage in 3V systems

Memory IC Procurement Notes

Verify the exact suffix against official Renesas documentation, as 'SSHD' may differ from the verified 'SHD'. Confirm RoHS3 compliance and MSL level 1 status. Ensure the 8-SOIC package matches design constraints. Cross-reference datasheet revision dates to avoid obsolete variants.

Memory IC Selection Notes

Select this component when a 4Mb capacity with 108 MHz Quad I/O speed is required. Ensure the operating voltage aligns with the 2.5V to 3.6V specification. Consider the 8-SOIC package size for PCB layout constraints. Verify temperature range requirements against the -40°C to 85°C rating.

Memory IC Part Context

This part belongs to the AT25SF041 family of SPI NOR flash memories. It shares architectural similarities with other devices in the series, such as the AT25SF041B-SHB-B, but differs in packaging and specific electrical parameters like write cycle times. It is distinct from the wider voltage range AT25FF041A series.

Memory IC Replacement Considerations

The AT25SF041B-SHB-B is a verified alternative within the same family, offering similar functionality in a tube package. Check pinout compatibility and voltage specifications before substitution.