AT45DB041D-SU-SL954

Memory IC Overview

The AT45DB041D-SU-SL954 is a non-volatile flash memory IC manufactured by Renesas Electronics Corporation. It features a SPI interface with a clock frequency of 50 MHz and operates within a supply voltage range of 2.5V to 3.6V. The device provides 4Mb storage capacity organized as 264 bytes x 2048 pages. It supports surface mount installation in an 8-SOIC package (0.209" width) and functions across a temperature range of -40°C to 85°C.

Memory IC Feature Summary

• Non-volatile flash memory technology for data retention without power
• SPI interface supporting high-speed serial communication
• Page mode organization for structured data storage

Memory IC Applications

• Embedded systems requiring reliable code storage
• Data logging applications needing persistent memory
• Consumer electronics with firmware requirements

Memory IC Procurement Notes

Verify the specific suffix SL954 against official Renesas documentation, as this variant may indicate obsolete status or specific packaging constraints. Confirm availability through authorized distributors, noting that some listings indicate discontinuation. Ensure compatibility with existing PCB footprints and voltage levels before procurement.

Memory IC Selection Notes

Select this component when a 4Mbit SPI flash memory is required with a 2.5V minimum operating voltage. Consider the 8-SOIC package dimensions for board space constraints. Verify if the 50 MHz speed meets system timing requirements compared to newer variants like the AT45DB041E series which offer higher speeds and wider voltage ranges.

Memory IC Part Context

This part belongs to the AT45DB041 family of DataFlash memory devices. It serves as a successor to earlier generations, offering improved performance over standard NOR flash while maintaining compatibility with SPI protocols. The device is designed for applications requiring fast read access and moderate write endurance.

Memory IC Replacement Considerations

Check for AT45DB041E series equivalents for enhanced performance. Verify pinout compatibility with existing designs. Confirm that the 2.5V minimum voltage requirement aligns with the target system's power supply capabilities.