70T651S10BFG8

Memory IC Overview

The 70T651S10BFG8 is a 9 Mbit (256K x 36) asynchronous dual-port static RAM manufactured by Renesas Electronics. It operates with a 10 ns access time and supports a parallel interface. The device utilizes a single 2.5V core supply and selectable 3.3V or 2.5V I/O supplies. It is housed in a 208-CABGA package measuring 15x15 mm and is rated for an industrial temperature range of -40°C to +85°C.

Memory IC Feature Summary

• Dual-port architecture enables simultaneous independent access from two ports without external arbitration logic.
• Integrated hardware semaphore signaling and interrupt flags facilitate efficient port contention management.
• RapidWrite mode simplifies high-speed consecutive write cycles for improved throughput.
• Automatic power-down features controlled by chip enables allow entry into low standby power modes.

Memory IC Applications

• High-speed data buffering in telecommunications systems
• Network switch and router packet storage
• Industrial control system memory modules
• Automotive electronic control unit data logging

Memory IC Procurement Notes

Verify component authenticity through authorized channels as the part is discontinued. Confirm RoHS3 compliance status and check for specific manufacturing date codes relevant to your production timeline. Ensure handling procedures account for Moisture Sensitivity Level 3 requirements during assembly.

Memory IC Selection Notes

Select this component when a 36-bit wide data path is required for dual-port applications. It serves as a suitable replacement for legacy IDT parts within the same family. Consider the 208-pin CABGA footprint for PCB layout compatibility and verify voltage levels match the target system's I/O standards.

Memory IC Part Context

This device belongs to the 70T651 series of high-speed asynchronous dual-port SRAMs. It shares architectural similarities with other members like the 70T651S10BFI8 but differs in packaging and specific suffix designations. The series is designed for standalone or cascaded master/slave configurations to expand bus width.

Memory IC Replacement Considerations

Publicly confirmed substitute part numbers are not available for this discontinued component. Designers should evaluate alternative dual-port SRAM families with compatible pinouts and electrical specifications if redesigning the hardware.