7140SA25J

Overview

The Renesas Electronics Corporation 7140SA25J is a dual-port static random-access memory (SRAM) integrated circuit. It provides an 8-kilobit storage capacity organized as 1K words by 8 bits. The device features asynchronous parallel interface operation with a maximum access time of 25 nanoseconds. It operates within a supply voltage range of 4.5V to 5.5V and supports surface-mount installation in a 52-pin Plastic Leadless Chip Carrier (PLCC) package.

Feature Summary

• Dual-port architecture enabling independent simultaneous read/write operations on separate ports
• Asynchronous parallel interface for straightforward integration into digital systems
• CMOS technology ensuring low power consumption during operation

Applications

• High-speed data buffering in communication equipment
• Cache memory implementation in embedded processing systems
• Real-time data acquisition and storage in industrial control units

Procurement Notes

Verify component authenticity through authorized channels due to end-of-life status. Confirm RoHS compliance requirements, as this specific variant may not meet current environmental standards. Validate package integrity and pin alignment against the 52-PLCC specification before soldering. Review datasheet revisions for any functional updates or handling precautions relevant to legacy CMOS SRAM devices.

Selection Notes

Select this component when dual-port functionality is required for concurrent data access without bus contention. Ensure system timing constraints align with the 25ns access speed. Verify that the 52-PLCC footprint matches the printed circuit board layout. Consider thermal management capabilities within the specified operating temperature range for reliable long-term performance.

Part Context

This part belongs to the 7140SA series of high-performance dual-port SRAMs manufactured by Renesas Electronics. The series offers various speed grades and packaging options to suit different design requirements. These components are designed for applications demanding fast, independent data access from two distinct masters simultaneously.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Consult manufacturer resources for potential cross-references or updated product line alternatives.