7142LA20JG

Overview

The Renesas Electronics Corporation 7142LA20JG is an asynchronous dual-port static random-access memory (SRAM) component. It features a storage capacity of 16 kilobits, organized as 2K words by 8 bits. The device supports parallel interface communication with a maximum access time of 20 nanoseconds. It operates on a single 5V power supply within a voltage range of 4.5V to 5.5V. The integrated circuit is housed in a 52-pin Plastic Leadless Chip Carrier (PLCC) package designed for surface-mount technology. It functions reliably across an industrial temperature range from 0°C to +70°C.

Feature Summary

• Supports simultaneous independent access to the same memory location by two separate ports without bus contention
• Includes a BUSY input flag to manage data transfer timing between master and slave devices
• Features automatic power-down control via chip enable inputs to minimize standby power consumption

Applications

• High-speed data buffering in embedded systems requiring concurrent read/write operations
• Slave memory expansion in multi-port architectures paired with compatible master controllers
• Industrial equipment requiring reliable volatile storage under standard operating conditions

Procurement Notes

Verify component authenticity through authorized channels due to obsolete status. Confirm package integrity and pin alignment prior to installation. Ensure compatibility with existing system voltage levels and timing requirements. Review manufacturer documentation for handling precautions related to moisture sensitivity. Validate that the specific suffix matches the required lead-free specifications.

Selection Notes

Select this component when dual-port functionality is essential for system architecture. Consider the 20ns access speed for applications demanding rapid data exchange. Evaluate the PLCC-52 footprint against available printed circuit board real estate. Assess power consumption profiles against thermal management capabilities. Verify that the 16Kb capacity aligns with specific memory organization needs.

Part Context

This part belongs to the 7142 series of high-speed dual-port SRAMs manufactured by Renesas Electronics. The series is designed for use as slave devices in systems utilizing master-slave configurations. It complements other components like the 7132LA to create wider word width memories. The LA designation indicates operation within the specified commercial/industrial temperature range.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material.