71V30VL90TF8

Memory IC Overview

The 71V30VL90TF8 is an obsolete high-speed 1K x 8 dual-port static RAM manufactured by Renesas Electronics. It features true dual-ported memory cells allowing simultaneous access to the same location, with on-chip port arbitration logic and interrupt flags for communication. The device operates asynchronously from either port with TTL-compatible single 3.3V power supply. It supports battery backup operation with 2V data retention and includes an automatic power-down feature controlled by chip enable signals for low standby power.

Memory IC Feature Summary

• True dual-ported memory architecture enabling independent asynchronous read/write operations from two separate ports
• On-chip port arbitration logic and interrupt flags facilitate direct port-to-port communication without external microprocessor intervention
• Automatic power-down mode reduces standby current when chip enable signals are inactive

Memory IC Applications

• Data buffering in telecommunications systems requiring simultaneous port access
• Network switch memory management for packet storage and forwarding
• Industrial control systems needing isolated dual-port data exchange

Memory IC Procurement Notes

This component is officially marked as obsolete and no longer manufactured by Renesas Electronics. Procurement must focus on verifying the authenticity of remaining stock from authorized distributors or third-party suppliers. Ensure strict adherence to moisture sensitivity level handling procedures during storage and assembly to prevent package damage.

Memory IC Selection Notes

Engineers should evaluate alternative dual-port SRAM solutions within the 71V30 series or newer generations that maintain similar pinouts and functionality. Consider verifying if the specific timing requirements and voltage levels of substitute parts align with existing circuit designs before transitioning away from this discontinued part number.

Memory IC Part Context

The 71V30 series represents a family of high-speed dual-port static random-access memories designed for applications requiring concurrent access from multiple masters. This specific model belongs to the L variant line, characterized by its 3.3V operation and industrial temperature range capabilities, serving as a standalone memory solution for complex digital systems.