71342SA70J

Overview

The Renesas Electronics Corporation 71342SA70J is a dual-port static random access memory (SRAM) integrated circuit. It provides a storage capacity of 32 kilobits, organized as 4K words by 8 bits. The device utilizes an asynchronous parallel interface with a maximum access time of 70 nanoseconds. It operates within a supply voltage range of 4.5 volts to 5.5 volts and supports surface-mount installation in a 52-pin Plastic Leadless Chip Carrier (PLCC) package.

Feature Summary

• Dual-port architecture enabling independent simultaneous read/write operations on separate ports
• Asynchronous operation without requiring a system clock signal for data transfer
• CMOS technology construction ensuring low power consumption during active and standby modes

Applications

• High-speed data buffering in telecommunications equipment
• Cache memory implementation in industrial control systems
• Data storage in network communication devices

Procurement Notes

This component has reached the end-of-life stage and is officially discontinued by the manufacturer. Procurement is restricted to existing surplus stock from authorized distributors or secondary market suppliers. Verify authenticity through official traceability documentation due to potential availability of obsolete or counterfeit units. Designers should initiate replacement strategies immediately to ensure long-term supply chain stability.

Selection Notes

Select this part only if legacy compatibility with the 7134SA series is required. Evaluate alternative components that offer RoHS compliance and extended temperature ranges, as this specific unit does not meet current environmental standards. Confirm that the 52-PLCC footprint matches the target printed circuit board design constraints before finalizing the selection.

Part Context

The 71342SA70J belongs to the Renesas 7134SA family of high-performance dual-port SRAMs. This series was designed to provide fast data throughput for applications requiring concurrent access. The '70' suffix indicates the 70-nanosecond speed grade, while the 'J' suffix specifies the plastic leadless chip carrier package type used for surface mounting.

Replacement Considerations

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