7142SA4J

Overview

The Renesas Electronics Corporation 7142SA4J is a dual-port, asynchronous SRAM memory IC with a 16Kbit capacity organized as 2K x 8. It features parallel interface access with a maximum access time of 55 ns and operates on a single 5V supply voltage ranging from 4.5V to 5.5V. The component is housed in a 52-pin PLCC package (19.13x19.13 mm) designed for surface-mount installation. It supports industrial operating temperatures from 0°C to 70°C.

Feature Summary

• Dual-port architecture enabling independent simultaneous read/write operations
• Asynchronous operation compatible with standard logic interfaces
• High-speed parallel data transfer capabilities

Applications

• Data buffering in high-speed digital systems
• Cache memory implementation in embedded controllers
• FIFO buffer applications in communication interfaces

Procurement Notes

Verify the specific suffix '4J' against official Renesas documentation to confirm pinout and electrical characteristics match your design requirements. Confirm RoHS compliance status as older variants may differ. Ensure the 52-PLCC footprint matches your PCB layout exactly. Check for obsolescence notices or last-time buy notifications before finalizing procurement plans.

Selection Notes

Select this component when dual-port functionality is required for concurrent master-slave memory access. The 55ns speed suits moderate-frequency asynchronous buses. Consider the 52-PLCC package constraints for board space. Verify voltage compatibility with the 4.5V to 5.5V range. Evaluate thermal performance within the 0°C to 70°C operational window for your specific environment.

Part Context

This part belongs to the IDT/Renesas 7142SA family of dual-port SRAMs. These devices are designed for applications requiring independent port access without bus contention. The family typically offers various speed grades and package options to suit different system timing and form factor requirements.

Replacement Considerations

Check Renesas PCN documents for direct replacements. Cross-reference pinouts carefully as PLCC variations exist. Verify electrical parameters match exactly if substituting.