AT25SL641-SUE-T

Memory IC Overview

The AT25SL641-SUE-T is a 64Mbit SPI Serial NOR Flash memory device manufactured by Renesas Electronics Corporation. It operates within a supply voltage range of 1.7V to 2.0V and supports clock frequencies up to 104MHz. The device utilizes an 8-UDFN (5x6) package with exposed pad for surface mount installation. It features non-volatile storage organized as 8M x 8 bits, with typical write cycle times of 150µs for word operations and 5ms for page operations. The component is rated for an operating temperature range of -40°C to +85°C.

Memory IC Feature Summary

• Supports Dual I/O and Quad I/O operation modes for enhanced data throughput
• Includes three security register pages for unique device serialization and locked key storage
• Features standard block architecture optimized for code and data storage applications

Memory IC Applications

• Code shadowing from flash memory into embedded or external RAM for execution
• System-level Electronic Serial Number (ESN) storage
• Unique device serialization and locked key storage

Memory IC Procurement Notes

Verify the specific suffix 'SUE' against official Renesas documentation to confirm pinout compatibility and package dimensions, as suffixes often denote specific tape-and-reel packaging or regional compliance variations. Ensure the design accounts for the 1.7V minimum supply voltage requirement. Confirm that the 8-UDFN package footprint matches the target PCB layout constraints. Cross-reference the RoHS status and moisture sensitivity level requirements with assembly specifications.

Memory IC Selection Notes

Select this component when a low-voltage 2.0V system requires high-speed SPI NOR flash with dual or quad I/O capabilities. It is suitable for applications needing secure data storage via dedicated security registers. Consider the 8-UDFN package size if board space is limited. Verify that the 104MHz maximum clock frequency meets the system's performance requirements. Ensure the operating temperature range aligns with the environmental conditions of the final product.

Memory IC Part Context

The AT25SL641 series belongs to Renesas' standard class of code and data storage solutions designed for 3V systems, though this specific variant operates at lower voltages. It is part of the broader AT25 family of SPI serial flash memories. The device is positioned for use in consumer electronics and industrial applications requiring reliable non-volatile storage with moderate capacity and fast read access speeds.

Memory IC Replacement Considerations

Check for direct substitutes within the AT25SL641 series with different suffixes for package variations. Verify cross-compatibility with other 64Mbit SPI NOR flash devices from Renesas or other manufacturers, ensuring pinout and command set alignment.