SST39VF3201B-70-4C-B3KE

Memory IC Overview

The SST39VF3201B-70-4C-B3KE is a 32 Mbit (2M x 16) Multi-Purpose Flash Plus device manufactured using SuperFlash technology. It operates on a single voltage supply of 2.7V to 3.6V for both read and write operations. The component features asynchronous access with a maximum timing of 70ns. It utilizes a split-gate cell design for enhanced reliability, offering an endurance of 100,000 cycles and data retention exceeding 100 years. The device includes hardware block protection for the bottom 32 KWord boot block.

Memory IC Feature Summary

• SuperFlash Technology: Utilizes split-gate cell design and thick-oxide tunneling injector for superior reliability and manufacturability compared to alternate approaches.
• Hardware Block Protection: Includes a dedicated WP# pin to protect the bottom 32 KWord boot block from Erase/Program operations when grounded.
• Erase-Suspend Capability: Allows temporary suspension of Sector or Block-Erase operations to enable reading from or programming other memory locations.
• Security-ID Feature: Provides a 136-word Security ID space divided into a factory-programmed 128-bit segment and a user-programmable 128-word segment.

Memory IC Applications

• Applications requiring convenient and economical updating of program, configuration, or data memory.
• System applications needing improved performance and reliability while lowering power consumption.
• Program, data, and configuration storage applications where flexibility and cost reduction are prioritized.

Memory IC Procurement Notes

Verify that the specific suffix 'B3KE' corresponds to the TFBGA-48 package and commercial temperature range as indicated by distributor listings. Confirm the device status, as some sources indicate this part may be Not Recommended for New Designs (NRND). Ensure compatibility with JEDEC standard x16 memory pin assignments for your target system interface.

Memory IC Selection Notes

Select this component if a 32 Mbit capacity with a 16-bit data bus width is required. The 70ns access speed suits high-performance parallel interfaces. Consider the bottom boot block protection feature if code execution from the start of memory is necessary. Verify that the 2.7V to 3.6V operating voltage aligns with the system's power supply rails.

Memory IC Part Context

This device belongs to the SST39VF320xB series of Multi-Purpose Flash Plus memories. It shares architectural similarities with the SST39VF3202B, differing primarily in the location of the hardware-protected boot block; the 3201B protects the bottom block, whereas the 3202B protects the top block. Both utilize the same SuperFlash technology and package options.

Memory IC Replacement Considerations

SST39VF3202B-70-4C-B3KE

Memory IC FAQ

How does the hardware block protection function on the SST39VF3201B?

The SST39VF3201B supports bottom hardware block protection via the WP# pin. When WP# is grounded, Program and Erase operations are prevented on the bottom 32 KWord block. If left floating, it is internally held high, leaving the block unprotected.

What methods are available to detect the completion of a Write operation?

The device provides two software means for End-of-Write detection: Data# Polling (DQ7) and Toggle Bits (DQ6 and DQ2). These allow the host system to optimize write cycle time without fixed delays.

Can the device enter a low-power state automatically?

Yes, the SST39VF320xB features an Auto Low Power mode. After a valid Read operation, the device enters a near standby mode, reducing active current from typically 9 mA to 4 µA. It exits this mode upon any address or control signal transition.