7142SA5J

Overview

The Renesas Electronics Corporation 7142SA5J is a 16Kbit dual-port asynchronous static random-access memory (SRAM) integrated circuit. It features a 2K x 8 memory organization and utilizes a parallel interface for data access. The device operates within a supply voltage range of 4.5V to 5.5V and supports surface-mount installation in a 52-PLCC package with J-leads, measuring 19.13x19.13 mm. It is designed for commercial temperature ranges from 0°C to 70°C.

Feature Summary

• Dual-port architecture enabling independent simultaneous access by two masters
• Asynchronous operation without requiring a system clock signal
• Parallel interface supporting standard data bus configurations

Applications

• High-speed data buffering in communication systems
• Cache memory implementation in embedded processors
• FIFO buffers in industrial control applications

Procurement Notes

Verify component authenticity through authorized channels due to end-of-life status. Confirm RoHS compliance requirements as the device may not meet current environmental standards. Validate package integrity upon receipt to ensure pin alignment matches the 52-PLCC specification before integration into assembly processes.

Selection Notes

Select this component when dual-port functionality is required for concurrent master access. Ensure the design accommodates the 4.5V to 5.5V operating voltage range. Consider the 52-PLCC footprint constraints during PCB layout planning. Verify that asynchronous timing requirements align with system performance needs.

Part Context

This part belongs to the 7142SA family of dual-port SRAMs manufactured by Renesas Electronics. It shares architectural similarities with related models such as the 7142SA55J and IDT7142SA series. The device represents legacy technology often found in established industrial and telecommunications equipment designs requiring reliable non-volatile-free storage solutions.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Engineers should consult official Renesas replacement guides or contact manufacturer support directly for qualified alternatives.