71342SA20J8

Overview

The Renesas Electronics Corporation 71342SA20J8 is a high-speed, asynchronous dual-port static random-access memory (SRAM) device. It features a storage capacity of 32 kilobits organized as 4K words by 8 bits. The component utilizes 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 an industrial operating temperature range from -40°C to +85°C. The device is housed in a 52-pin Plastic Leadless Chip Carrier (PLCC) package.

Feature Summary

• True dual-ported memory architecture enabling simultaneous independent access to the same memory location from both ports.
• Integrated hardware semaphore logic block for automatic arbitration and signaling between the two ports.
• Asynchronous operation allowing flexible timing control without reliance on a global clock signal.

Applications

• High-speed data buffering in telecommunications equipment
• Real-time processing systems requiring concurrent read/write operations
• Industrial control systems needing reliable dual-port memory interfaces

Procurement Notes

Verify current availability status as this component may be subject to end-of-life restrictions or limited distribution channels. Confirm that the 52-PLCC package dimensions match the target PCB footprint requirements. Ensure that the 4.5V to 5.5V supply voltage specifications align with the system power design. Validate that the -40°C to +85°C industrial temperature rating meets environmental operational needs.

Selection Notes

Select this component when a system requires true dual-port memory capabilities with integrated arbitration logic. The 20ns access speed suits applications demanding rapid data exchange between independent processors. The 32Kb capacity provides sufficient buffer space for moderate data throughput requirements. Consider the PLCC package constraints during layout planning.

Part Context

This part belongs to the 71342 series of dual-port SRAMs manufactured by Renesas Electronics. The series offers various speed grades and packaging options to accommodate different performance and form factor requirements. The 71342SA variant specifically denotes the asynchronous technology with the SA suffix indicating the specific speed bin and package configuration.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Verify compatibility with existing designs if considering alternative dual-port SRAM families.