70T631S12BF8

Memory IC Overview

The 70T631S12BF8 is a dual-port static random-access memory (SRAM) manufactured by Renesas Electronics. It features a storage capacity of 4 Mbit organized as 256K x 18 bits. The device supports asynchronous parallel interface with a maximum access time of 12 ns. It operates on a single 2.5 V power supply and is housed in a 208-pin Fine-Pitch Ball Grid Array (FPBGA) package measuring 15 mm x 15 mm. The component is rated for an industrial temperature range from -40°C to +85°C.

Memory IC Feature Summary

• Dual-port architecture enabling independent simultaneous access to the same memory array
• Asynchronous operation without requiring a system clock signal
• CMOS technology ensuring low power consumption during standby and active modes

Memory IC Applications

• High-speed data buffering in telecommunications equipment
• Cache memory implementation in embedded processing systems
• Data acquisition systems requiring rapid write and read cycles

Memory IC Procurement Notes

Verify the specific suffix BF8 against official Renesas documentation to confirm pinout compatibility and package dimensions. Confirm RoHS compliance status and moisture sensitivity level prior to PCB assembly. Check for product change notices or end-of-life announcements that may affect long-term availability. Ensure design-in approval aligns with current manufacturing standards.

Memory IC Selection Notes

Select this component when a 2.5 V supply voltage is required for the memory subsystem. The 256K x 18 organization suits applications needing wide data paths. The 12 ns speed class balances performance with power efficiency. Compare against the 70V series if a 3.3 V supply is available instead.

Memory IC Part Context

This part belongs to the 70T631S family of dual-port SRAMs. It shares architectural similarities with other members like the 70V631S but differs in operating voltage. The FPBGA package allows for high-density board mounting. It serves as a high-performance memory solution for industrial and commercial applications.

Memory IC Replacement Considerations

IDT70T631S12BF8 is a confirmed substitute part number under the Integrated Device Technology brand, which is now part of Renesas.