71342SA35PF8

Overview

The Renesas Electronics Corporation 71342SA35PF8 is a high-speed 4K x 8 Dual-Port Static RAM. It features parallel asynchronous interface with 35 ns access time. Operating voltage ranges from 4.5 V to 5.5 V. The device is housed in a 64-TQFP (14x14) package. It supports industrial temperature range of -40°C to +85°C.

Feature Summary

• True dual-ported memory cells allow simultaneous independent access to the same memory location from both ports without hardware port arbitration.
• Contains a fully independent semaphore logic block designed to assist in arbitrating access when both sides attempt to write to the same location.
• Fully asynchronous operation enables flexible system integration without requiring synchronized clock signals for data transfer.

Applications

• Systems requiring simultaneous independent access to shared memory buffers
• Network routers and switches managing packet buffering
• Industrial control systems needing redundant data processing paths

Procurement Notes

Verify component authenticity through authorized channels as this part may be obsolete or discontinued. Confirm package integrity and pin compatibility before integration. Check for RoHS compliance status if required by current manufacturing standards. Ensure supply chain stability due to potential end-of-life status.

Selection Notes

Select this component when true dual-port functionality with semaphore arbitration is required. Compare access times and power consumption against single-port alternatives. Verify package dimensions fit the target PCB layout. Consider thermal performance within the specified industrial temperature range during design phase.

Part Context

This device belongs to the 7134 series of dual-port SRAMs. It shares architectural similarities with other parts in the family but differs in speed grade, package type, and temperature rating. The 71342 variant specifically offers 4K x 8 organization.

Replacement Considerations

Check for direct substitutes like 71342LA20PFG for faster access times. Verify pinout compatibility and electrical specifications before substitution. Consider newer generations from the manufacturer if available.