71V30L35TFI8

Overview

The Renesas Electronics Corporation 71V30L35TFI8 is an obsolete high-speed 1K x 8 dual-port static RAM. It features a parallel interface with a 35 ns access time and operates on a single 3V to 3.6V power supply. The device utilizes a 64-TQFP (10x10) surface-mount package. It supports asynchronous operation from either port, includes automatic power-down via CE control, and offers battery backup data retention down to 2V.

Feature Summary

• True dual-ported memory cells allow simultaneous independent access of the same memory location from two ports.
• On-chip port arbitration logic manages concurrent read/write operations between the two independent ports.
• Interrupt flags facilitate direct communication and status signaling between the two ports.

Applications

• Stand-alone 8-bit dual-port SRAM applications requiring independent asynchronous access
• Systems utilizing battery backup for data retention during power loss
• Industrial equipment requiring TTL-compatible single 3.3V power supply operation

Procurement Notes

This component is officially marked as obsolete and no longer manufactured by Renesas Electronics Corporation. Verification of current availability should focus on identifying approved substitute part numbers or checking for surplus stock from authorized distributors. Direct replacement requires confirming pin compatibility and electrical specifications against the designated alternative components listed in official documentation.

Selection Notes

Designers must account for the discontinued status when selecting this component. The primary selection criterion involves identifying a functional equivalent that matches the 1K x 8 organization, 35 ns speed grade, and 64-pin TQFP footprint. Ensure the chosen substitute maintains compatibility with the 3.3V LVTTL interface and industrial temperature range requirements specified for the original design.

Part Context

The 71V30 series comprises high-speed dual-port SRAMs designed for applications needing simultaneous access. This specific model belongs to the industrial temperature grade variant (-40°C to +85°C). It is part of the broader 71V30 family, which includes various speed grades and packaging options, serving as a versatile memory solution for complex digital systems.

Replacement Considerations

The 71V30L35TFGI8 is listed as a direct replacement for the 71V30L35TFI8. Verify package dimensions and moisture sensitivity levels before substitution.

FAQ

What is the current manufacturing status of the 71V30L35TFI8?

The 71V30L35TFI8 is classified as obsolete and is no longer in production by Renesas Electronics Corporation.

Does the 71V30L35TFI8 support simultaneous access to the same memory address?

Yes, it features true dual-ported memory cells that allow simultaneous independent access to the same memory location from both ports.