70T651S10BFI

Memory IC Overview

The Renesas Electronics Corporation 70T651S10BFI is a 9 Mbit (256K x 36) asynchronous dual-port static random-access memory. It operates with a 12 ns access time and supports a parallel interface. The device requires a supply voltage between 2.4 V and 2.6 V and functions within an industrial temperature range of -40°C to +85°C. It is housed in a 208-pin CABGA package measuring 15x15 mm.

Memory IC Feature Summary

• Supports simultaneous independent access to the same memory location by two separate ports
• Includes on-chip hardware semaphore signaling for port arbitration
• Features automatic power-down mode controlled by chip enable signals

Memory IC Applications

• High-speed data buffering in telecommunications systems
• Cache memory implementation in embedded processing architectures
• Data storage in industrial control networks requiring concurrent read/write operations

Memory IC Procurement Notes

Verify component authenticity through authorized distributors due to end-of-life status. Confirm RoHS compliance requirements as this specific variant may not meet current environmental standards. Validate package integrity upon receipt, as moisture sensitivity level 4 requires strict handling protocols during assembly to prevent damage.

Memory IC Selection Notes

Select this component when dual-port concurrency is required without external logic. Ensure system design accommodates the 2.4V to 2.6V supply range. Verify that the 208-CABGA footprint matches the PCB layout. Consider thermal management for the specified operating temperature range.

Memory IC Part Context

This part belongs to the 70T651 series of high-speed asynchronous dual-port SRAMs. It is designed for applications needing fast, error-free operation without discrete logic. The series supports depth expansion via master/slave configurations and offers selectable I/O voltage levels for compatibility with various logic families.

Memory IC Replacement Considerations

Check for 70T651S12BFI or 70T651S10BFGI8 as potential substitutes. Verify pinout compatibility and electrical parameter alignment before integration.