71V321L25PFGI8

Overview

The Renesas Electronics Corporation 71V321L25PFGI8 is a static random-access memory device organized as 2K x 8, providing a total storage capacity of 16 kbit. It operates with an asynchronous parallel interface and features a maximum access time of 25 ns. The component supports a supply voltage range from 3 V to 3.6 V, with a maximum power supply current of 130 mA. It is designed for surface mount installation in a TQFP-64 package and functions within an operating temperature range of -40°C to +85°C.

Feature Summary

• Dual-port architecture enabling simultaneous independent access to the same memory location by two separate ports.
• On-chip port arbitration logic manages concurrent read and write operations between ports.
• Interrupt flags facilitate communication and status signaling between the two ports.

Applications

• High-performance processor secondary cache systems
• Network router buffer memory management
• Industrial control system data logging

Procurement Notes

Verify RoHS compliance status, as suffix variations indicate different environmental certifications. Confirm moisture sensitivity level (MSL 3) handling requirements during assembly. Ensure the specific package variant matches the PCB footprint design. Validate that the selected revision aligns with the intended industrial temperature range specifications.

Selection Notes

Select this component when dual-port functionality is required for high-speed data exchange without external arbitration logic. Compare against single-port alternatives if only one access point is needed. Consider the 25 ns access speed relative to system clock frequencies. Evaluate the 64-pin TQFP package constraints against available board space.

Part Context

This part belongs to the 71V321L25 series of asynchronous dual-port SRAMs. It shares architectural similarities with other members like the 71V321L35 but offers faster access times. The series is designed for applications requiring low standby power and TTL-compatible inputs.

Replacement Considerations

The IDT71V321L25PFGI8 is listed as an alias for this component. Verify pinout compatibility before substitution.