7140SA100J8

Overview

The Renesas Electronics Corporation 7140SA100J8 is an asynchronous dual-port static random-access memory (SRAM) integrated circuit. It provides a storage capacity of 8 kilobits, organized as 1K words by 8 bits. The device features parallel interface access with a maximum access time of 100 nanoseconds. It operates within a supply voltage range of 4.5V to 5.5V and supports surface-mount installation in a 52-pin PLCC package measuring 19.13mm by 19.13mm. The component is rated for commercial operating temperatures between 0°C and 70°C.

Feature Summary

• Supports simultaneous independent read and write operations on two separate ports without bus contention.
• Utilizes CMOS technology for low power consumption during standby and active modes.
• Provides full electrical isolation between the two data buses to prevent interference.

Applications

• High-speed data buffering in telecommunications equipment
• Cache memory implementation in industrial control systems
• Data logging applications requiring independent host access

Procurement Notes

Verify component authenticity through authorized channels due to discontinuation status. Confirm RoHS compliance requirements against specific project standards, as older variants may not meet current environmental directives. Validate package dimensions and pinout compatibility before integration into existing PCB layouts.

Selection Notes

Select this component when dual-port functionality is required for concurrent data handling. Ensure system timing allows for the specified 100ns access window. Verify that the 52-PLCC footprint matches the design constraints and that the voltage supply aligns with the 4.5V to 5.5V operational range.

Part Context

This part belongs to the 7140SA series of dual-port SRAMs manufactured by Renesas Electronics. The series offers various speed grades and packaging options to suit different performance needs. The 7140SA100J8 specifically addresses applications needing moderate speed with reliable dual-bus architecture.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Consult manufacturer resources for potential cross-references or updated series replacements.