70T651S10BFGI8

Memory IC Overview

The 70T651S10BFGI8 is a high-speed asynchronous dual-port static random-access memory (SRAM) manufactured by Renesas Electronics Corporation. It features a storage capacity of 9 Mbit organized as 256K words by 36 bits. The device supports parallel interface operation with an access time of 10 ns and operates within a supply voltage range of 2.4 V to 2.6 V. It is housed in a 208-CABGA package measuring 15x15 mm, designed for surface mount installation. The component supports an industrial operating temperature range from -40°C to +85°C.

Memory IC Feature Summary

• Dual-port architecture enables simultaneous independent access to the same memory location from two separate ports without external arbitration logic.
• Integrated hardware semaphore signaling and port arbitration logic facilitate conflict-free data exchange between connected processors or systems.
• Selectable I/O power supply allows compatibility with either 3.3V or 2.5V logic levels while maintaining a single 2.5V core supply.
• Automatic power-down feature controlled by chip enables reduces standby power consumption when the device is not actively accessed.

Memory IC Applications

• High-speed data buffering in telecommunications equipment requiring low-latency concurrent read/write operations
• Network switching and routing devices utilizing interleaved I/O structures for efficient packet processing
• Industrial control systems needing reliable dual-processor communication with hardware-based synchronization

Memory IC Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels due to end-of-life status. Confirm RoHS3 compliance and moisture sensitivity level (MSL 3) requirements for soldering processes. Check for specific packaging variations such as tape-and-reel quantities versus cut-tape options. Ensure thermal management aligns with the specified industrial temperature range during system integration.

Memory IC Selection Notes

Select this component when simultaneous bidirectional data transfer is required without external bus arbitration circuits. Consider the 36-bit word width for applications needing wide data paths or parity bit support. Evaluate the 208-ball CABGA package constraints regarding PCB layout density and thermal dissipation capabilities compared to alternative pin-count packages.

Memory IC Part Context

This part belongs to the 70T651 series of asynchronous dual-port SRAMs, which are designed for high-performance memory applications. The series typically offers various access times and package options to suit different speed and form factor requirements. The 70T651S10 variant specifically targets high-speed operations with a 10 ns access time, fitting into the broader portfolio of Renesas memory solutions for embedded and networking systems.

Memory IC Replacement Considerations

The 70T651S12BFI is documented as a similar replacement option within the same product family. Verify electrical compatibility and pinout correspondence before substitution. Note that the original 70T651S10BFGI8 is marked as obsolete, necessitating careful evaluation of long-term availability for new designs.