SST39VF512-70-4I-WHE

Memory IC Overview

The SST39VF512-70-4I-WHE is a NOR flash memory IC manufactured by Microchip Technology. It features a storage capacity of 512 Kbit organized as 64K x 8 bits, housed in a 32-TSOP package. The device operates on a single 2.7V to 3.6V power supply and supports asynchronous parallel interfaces with a maximum access time of 70 ns. It includes SuperFlash technology for reliable programming and erasing, with an operating temperature range from -40°C to +85°C.

Memory IC Feature Summary

• SuperFlash technology enables high endurance and reliability for data storage applications.
• Supports sector protection schemes to prevent accidental modification of critical code or data.
• Provides fast asynchronous read access times suitable for direct execution from memory (XIP).

Memory IC Applications

• Firmware storage in embedded systems
• Code execution in microcontroller-based designs
• Data logging in industrial control units

Memory IC Procurement Notes

Verify the specific suffix 'WHE' corresponds to the 32-TSOP package and commercial/industrial temperature grade as documented in the official datasheet. Confirm RoHS compliance status and moisture sensitivity level requirements for your assembly process. Ensure the ordering part number matches the exact voltage and speed grades specified in your design specifications.

Memory IC Selection Notes

Select this component when a small-capacity, parallel interface NOR flash is required for code execution. The 32-TSOP package is suitable for space-constrained PCB layouts. Consider the 70 ns access speed for system timing constraints. Verify that the 512 Kbit capacity meets the firmware size requirements without excessive waste.

Memory IC Part Context

This part belongs to the SST39VF series of multi-purpose flash memories. It utilizes Microchip's proprietary SuperFlash technology, which offers improved performance and reliability compared to older EPROM-based solutions. The series is designed for applications requiring frequent reprogramming and high endurance.

Memory IC Replacement Considerations

Check for pin-compatible alternatives within the SST39VF family with different capacities or packages. Verify if newer generations like SST39VFx01A offer backward compatibility. Ensure any substitute maintains the same voltage range and interface timing characteristics.