7142SA4J8

Overview

The Renesas 7142SA4J8 is a dual-port static random-access memory (SRAM) device with a storage capacity of 16 kbit, organized as 2K x 8 bits. It features asynchronous parallel interface operation with a maximum access time of 4 ns. The component operates within a supply voltage range of 4.5 V to 5.5 V and supports surface-mount installation in a 52-PLCC package. It functions reliably across an operating temperature range of 0°C to +70°C.

Feature Summary

• Dual-port architecture enabling independent simultaneous access from two distinct processors or systems
• Asynchronous parallel interface for flexible integration into various digital logic designs
• CMOS technology providing low power consumption characteristics suitable for battery-operated applications

Applications

• High-speed data buffering between microprocessors and peripheral devices
• Cache memory implementation in embedded control systems
• Data storage in telecommunications equipment requiring fast read/write cycles

Procurement Notes

Verify the specific suffix J8 against official Renesas documentation to confirm pinout compatibility and package dimensions. Confirm RoHS compliance status as historical data indicates potential non-compliance for older batches. Check for end-of-life notices or obsolescence warnings before finalizing procurement plans.

Selection Notes

Select this component when dual-port functionality is required for concurrent data access without bus contention. Ensure the design accommodates the 52-pin PLCC footprint and 4.5V to 5.5V power supply requirements. Consider the 4 ns access speed for timing constraints in high-frequency asynchronous interfaces.

Part Context

This part belongs to the Renesas 7142SA series of dual-port SRAMs. It shares architectural similarities with other members like the 7142SA20J8 and 7142SA35J8, differing primarily in access speed and organization. The series is designed for applications needing independent port access.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material. Verify compatibility with existing designs if considering alternative vendors.