SST39WF1602-70-4I-B3KE-T

Memory IC Overview

The SST39WF1602-70-4I-B3KE-T is a 16 Mbit (1M x 16) Multi-Purpose Flash Plus device manufactured by Microchip Technology. It utilizes SuperFlash technology and operates on a single 1.65V to 1.95V power supply for both read and write operations. The component features a 70 ns access time, asynchronous parallel interface, and hardware block protection for the top 32 KWord boot block. It supports sector, block, and chip erase capabilities with typical endurance of 100,000 cycles and data retention exceeding 100 years.

Memory IC Feature Summary

• SuperFlash technology enables low-power single-voltage programming and erasing without external high-voltage generation.
• Hardware Write Protect pin secures the top boot block against inadvertent modification.
• Integrated Security-ID feature provides dedicated factory-programmed and user-programmable identification segments.
• Supports Erase-Suspend/Erase-Resume operations to allow temporary reading or programming during erase cycles.

Memory IC Applications

• Code storage in embedded systems requiring frequent firmware updates
• Configuration memory for industrial control devices
• Data logging applications in consumer electronics

Memory IC Procurement Notes

Verify that the specific ordering suffix matches the required package type and temperature grade. Confirm the 'B3KE' designation corresponds to the 48-ball TFBGA package and tape-and-reel shipping format. Ensure compatibility with the system's voltage requirements before procurement.

Memory IC Selection Notes

Select this part when a 16 Mbit capacity with a 16-bit data bus width is required. It is suitable for designs needing top-block hardware protection rather than bottom-block protection. Consider the 48-ball TFBGA package constraints and the 1.65V to 1.95V operating voltage range during circuit design.

Memory IC Part Context

This component belongs to the SST39WF160x series of Multi-Purpose Flash Plus devices. It shares architectural similarities with the SST39WF1601 but differs in its hardware block protection scheme, protecting the top address space instead of the bottom. Both variants utilize the same SuperFlash process and command sets.

Memory IC Replacement Considerations

SST39WF1601-70-4I-B3KE-T offers identical electrical characteristics but provides bottom block protection instead of top block protection.

Memory IC FAQ

How does the WP# pin function?

The WP# pin provides hardware protection for the top 32 KWord block. When grounded, it prevents Program and Erase operations on this specific region.

What methods are available to detect write completion?

The device supports Data# Polling on DQ7 and Toggle Bit monitoring on DQ6 to indicate the end of internal Program or Erase cycles.