7142LA55J8

Overview

The Renesas Electronics Corporation 7142LA55J8 is a dual-port 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 asynchronous parallel interfaces for independent master and slave access. Key electrical specifications include a maximum access time of 55 nanoseconds and a supply voltage range of 4.5 volts to 5.5 volts. It operates within a commercial temperature range of 0°C to 70°C. The component is housed in a 52-lead Plastic Leadless Chip Carrier (PLCC) package with J-leads, measuring 19.13mm by 19.13mm.

Feature Summary

• Supports simultaneous independent read and write operations via separate master and slave ports
• Utilizes CMOS technology for low power consumption during active and standby modes
• Features asynchronous control logic for flexible system integration without clock synchronization requirements

Applications

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

Procurement Notes

Verify the specific suffix designation against official Renesas documentation to confirm package type and temperature grade. Confirm RoHS compliance status as older variants may not meet current environmental directives. Check for product discontinuation notices or end-of-life announcements prior to procurement planning. Ensure compatibility with existing board layouts regarding the 52-PLCC footprint dimensions.

Selection Notes

Select this component when dual-port functionality is required for concurrent data handling between two processors. Compare access times and power dissipation against alternative SRAM families if higher speed or lower voltage operation is needed. Verify that the 52-PLCC package aligns with automated assembly capabilities and thermal management requirements of the target application design.

Part Context

This part belongs to the IDT 7142SA/LA series of dual-port SRAMs, originally developed by Integrated Device Technology before its acquisition by Renesas. The series is characterized by high-speed asynchronous operation and independent port access. The 7142LA variant specifically denotes the commercial temperature grade and plastic leadless chip carrier packaging option within the broader product family.

Replacement Considerations

Official substitutes include the 7142SA55J8, which shares identical electrical characteristics but differs in operating temperature range. Other compatible parts within the same architectural family may offer variations in package style or speed grades.