71V321LA25PF

Overview

The Renesas Electronics Corporation 71V321LA25PF is a static random-access memory (SRAM) integrated circuit belonging to the 71V321L series. It features a storage capacity of 16 kilobits organized as 2K x 8 bits. The device utilizes an asynchronous parallel interface with a maximum access time of 25 nanoseconds. It operates within a supply voltage range of 3.0 volts to 3.6 volts and supports surface-mount installation in a 64-pin Thin Quad Flat Package (TQFP). The component is designed for industrial temperature ranges, typically spanning from -40°C to +85°C.

Feature Summary

• Dual-port architecture enabling independent simultaneous read/write operations on separate ports
• Asynchronous operation allowing flexible timing control without external clock synchronization
• Low-voltage power supply compatibility supporting standard 3.3V logic systems

Applications

• High-speed data buffering in telecommunications equipment
• Cache memory implementation in embedded processing systems
• Data storage in industrial automation controllers

Procurement Notes

Verify RoHS compliance status carefully, as legacy suffixes may indicate non-compliant variants. Confirm package type accuracy, as PF suffixes denote specific TQFP configurations. Check for obsolescence notices or lifecycle changes before finalizing procurement plans. Ensure supplier documentation matches the exact alphanumeric designation to avoid pinout mismatches.

Selection Notes

Select this component when dual-port functionality is required for concurrent data handling. Compare access speeds against system timing requirements to ensure 25ns performance meets latency needs. Evaluate thermal management capabilities for the specified operating temperature range. Consider alternative packages if board space constraints differ from the 64-TQFP footprint.

Part Context

This part belongs to the Renesas 71V321L family of low-power SRAMs. The 'LA' suffix typically denotes industrial temperature grading and specific manufacturing revisions. It serves as a direct functional replacement for older IDT-branded equivalents in existing designs requiring 16Kb dual-port memory solutions.

Replacement Considerations

The 71V321L25PFGI8 is listed as a compatible upgrade option. Verify pin compatibility and electrical specifications before substitution. Ensure the replacement variant meets all environmental and regulatory requirements of the original design.