7140LA20J

Overview

The Renesas Electronics Corporation 7140LA20J is an asynchronous dual-port static random-access memory (SRAM) integrated circuit. It provides a storage capacity of 8 kilobits, organized as 1K words by 8 bits. The device features a parallel interface with a maximum access time of 20 nanoseconds. It operates within a supply voltage range of 4.5 volts to 5.5 volts and supports surface-mount installation in a 52-lead Plastic Leadless Chip Carrier (PLCC) package.

Feature Summary

• Supports simultaneous independent read and write operations from two separate ports for high-throughput data handling.
• Utilizes CMOS technology to provide low power consumption characteristics suitable for battery-operated systems.
• Features asynchronous control logic that simplifies integration into existing digital designs without complex clock synchronization.

Applications

• High-speed data buffering in telecommunications equipment
• Cache memory implementation in industrial control systems
• Real-time signal processing applications requiring rapid data exchange

Procurement Notes

Verify component authenticity through authorized distributors due to discontinuation status. Confirm RoHS3 compliance and moisture sensitivity level requirements during storage and handling. Check for valid replacement options as original production has ceased. Ensure packaging integrity matches specified reel or tube formats for automated assembly processes.

Selection Notes

Select this component when dual-port functionality is required for concurrent data access. Compare access times against system timing constraints to ensure the 20 ns specification meets performance needs. Evaluate package compatibility with existing PCB footprints and reflow soldering profiles. Consider power dissipation limits relative to ambient operating temperatures.

Part Context

This part belongs to the 7140LA series of dual-port SRAMs manufactured by Renesas Electronics. The series offers various speed grades to accommodate different system latency requirements. These components are designed for robust performance in demanding electronic environments.

Replacement Considerations

Consult official datasheets for compatible substitutes such as the IDT7140LA20JG8. Verify pinout compatibility and electrical specifications before substitution. Ensure mechanical dimensions match the target footprint to avoid board redesign.