7140SA55PF8

Overview

The Renesas Electronics Corporation 7140SA55PF8 is a high-performance dual-port static random access memory (SRAM) integrated circuit. It features an 8Kbit storage capacity organized as 1K x 8 bits with a 55 ns access time. The device operates on a single 5V power supply and utilizes a parallel interface for asynchronous data transfer. It is housed in a 64-pin TQFP package, suitable for surface-mount applications.

Feature Summary

• Dual-port architecture enabling independent simultaneous access by two processors
• Asynchronous operation for flexible system integration
• CMOS technology ensuring low power consumption

Applications

• High-speed data buffering in communication systems
• Cache memory implementation in embedded controllers
• Data logging and temporary storage in industrial automation

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm the specific suffix PF8 corresponds to the 64-TQFP surface-mount package. Check for RoHS compliance status and moisture sensitivity level requirements during handling and soldering processes to ensure reliability.

Selection Notes

Select this component when dual-processor data sharing is required without complex arbitration logic. The 55 ns speed suits moderate-frequency asynchronous buses. Ensure the design accommodates the 64-pin TQFP footprint and 5V logic levels. Compare against single-port alternatives if only one master device accesses the memory.

Part Context

This part belongs to the Renesas 7140SA series of dual-port SRAMs. It serves as a bridge between different processing domains, allowing concurrent read/write operations from separate ports. The series is designed for applications requiring high bandwidth and low latency data exchange between microprocessors or digital signal processors.

Replacement Considerations

Public confirmed substitute part numbers: IDT7140SA55PF8.