SST26WF040BAT-104I/SN

Memory IC Overview

The SST26WF040BAT-104I/SN is a 4 Mbit Serial Quad I/O (SQI) NOR Flash memory device manufactured by Microchip Technology. It utilizes the SuperFlash process technology and operates with a single 1.8V power supply. The component features an 8-pin SOIC package and supports interface speeds up to 104 MHz. It is designed for high-performance applications requiring fast erase times and robust data retention within the industrial temperature range.

Memory IC Feature Summary

• Supports Serial Quad I/O (SQI) interface for high-speed data transfer
• Utilizes Microchip SuperFlash technology for enhanced reliability
• Operates on a dedicated 1.8V power supply rail
• Provides industry-leading erase performance characteristics

Memory IC Applications

• Code storage in embedded systems
• Data logging applications
• Firmware storage for microcontrollers

Memory IC Procurement Notes

Verify the specific suffix 'SN' corresponds to the SOIC-8 package configuration when sourcing. Confirm the 'BAT' suffix indicates tape and reel packaging if required for automated assembly. Ensure the voltage rating matches the 1.8V system requirement, as this variant does not support higher voltage rails like 3.3V.

Memory IC Selection Notes

Select this part when a low-voltage 1.8V operation is mandatory for the target system. The SQI interface offers higher throughput compared to standard SPI modes. Consider the 4 Mbit capacity limits for code size requirements. Verify that the host controller supports the specific SQI protocol timing requirements defined in the datasheet.

Memory IC Part Context

This component belongs to the SST26WF040B series, which expands Microchip's 1.8V SuperFlash portfolio. It shares architectural similarities with other SQI devices but is distinct from the 3.3V SST26VF series. The 'I' designation indicates industrial temperature range compliance, differentiating it from commercial grade variants.

Memory IC Replacement Considerations

Direct pin-compatible replacements include other SST26WF040B variants with different packages or temperatures. Cross-voltage substitutes like the SST26VF040A require level shifting or voltage domain adjustments. Verify electrical specifications carefully before substituting across the 1.8V and 3.3V families.