7142SA5J8

Overview

The Renesas Electronics Corporation 7142SA5J8 is a dual-port, asynchronous static random-access memory (SRAM) integrated circuit. It provides a storage capacity of 16 kilobits organized as 2K words by 8 bits. The device features a parallel interface with a maximum access time of 55 nanoseconds. It operates within a supply voltage range of 4.5V to 5.5V and supports surface-mount installation in a 52-PLCC package measuring 19.13x19.13 mm. The component functions within an ambient temperature range of 0°C to 70°C.

Feature Summary

• Dual-port architecture enabling independent simultaneous access for two processors or systems
• Asynchronous operation allowing flexible timing integration without external clock synchronization
• CMOS technology providing low power consumption characteristics relative to older SRAM generations

Applications

• High-speed data buffering in telecommunications equipment
• Cache memory implementation in embedded control systems
• Data storage in industrial automation controllers

Procurement Notes

Verify the specific suffix J8 against official datasheets to confirm package dimensions and pinout compatibility. Confirm RoHS compliance status as historical records indicate potential non-compliance for certain variants. Check manufacturer discontinuation notices for availability constraints. Validate lead times through authorized distributors due to end-of-life status. Ensure environmental ratings match operational requirements.

Selection Notes

Select this component when dual-port functionality is required for concurrent read/write operations between separate bus masters. Compare access speeds against system timing requirements to ensure the 55 ns specification meets performance needs. Evaluate package size constraints against the 52-PLCC footprint. Consider power dissipation limits under maximum operating temperatures. Verify voltage tolerance matches the target circuit supply rails.

Part Context

This part belongs to the 7142SA family of dual-port SRAMs manufactured by Renesas Electronics. The series offers various speed grades and organization options for different memory density requirements. These components are designed for applications requiring high-bandwidth data sharing between multiple processing units.

Replacement Considerations

Official substitutes include IDT7142SA55J8. Verify pin compatibility and electrical specifications before substitution.