SST39VF3201C-70-4I-B3KE-T

Memory IC Overview

The SST39VF3201C-70-4I-B3KE-T is a 32-Mbit (2M x 16) NOR flash memory manufactured using Microchip's SuperFlash technology. It operates on a single 2.7V to 3.6V supply and features asynchronous parallel access with a maximum read speed of 70 ns. The device utilizes a 48-ball TFBGA package measuring 6 mm by 8 mm. It supports uniform 2 KWord sector erases, flexible block erases, and word programming. Hardware protection is provided via the WP# pin for bottom boot blocks.

Memory IC Feature Summary

• SuperFlash technology enables high endurance and data retention with low power consumption during active and standby modes.
• Hardware block protection isolates specific boot sectors from inadvertent erase or program operations when the WP# pin is asserted.
• Integrated hardware reset functionality allows immediate termination of ongoing write cycles and return to read mode.
• Supports erase-suspend and erase-resume capabilities to allow temporary reading or programming in non-suspended areas.

Memory IC Applications

• Code storage for microcontrollers requiring direct execution from flash.
• Configuration memory for embedded systems needing frequent updates.
• Data logging applications utilizing sector-level erase capabilities.
• Boot code storage protected by hardware block locking mechanisms.

Memory IC Procurement Notes

Verify the component matches the exact suffix B3KE-T for the 48-ball TFBGA tape-and-reel packaging configuration. Confirm the 'I' designation aligns with the required industrial temperature range specifications. Ensure the datasheet revision corresponds to the manufacturing date code to validate feature availability and electrical characteristics.

Memory IC Selection Notes

Select this part for designs requiring a 16-bit interface and bottom-boot architecture. The 70 ns access time suits moderate-speed parallel bus interfaces. Consider the TFBGA package constraints for PCB layout and thermal management. Verify that the system voltage remains within the 2.7V to 3.6V operational window for reliable SuperFlash performance.

Memory IC Part Context

This component belongs to the SST39VF3201C/SST39VF3202C family of Multi-Purpose Flash Plus devices. It shares architectural similarities with other SST39VF series parts but differs in organization and block protection schemes. The C-series denotes specific process improvements over earlier A and B variants.

Memory IC Replacement Considerations

Direct substitutes include SST39VF3201B-70-4I-B3KE-T, though verification of block protection direction and command set compatibility is required. Cross-vendor equivalents require careful interface timing and voltage level analysis.