71V321S55PFI8

Overview

The Renesas Electronics Corporation 71V321S55PFI8 is a dual-port static random access memory (SRAM) integrated circuit. It provides a storage capacity of 16 kilobits, organized as 2K words by 8 bits. The device features an asynchronous parallel interface with a maximum access time and write cycle time of 55 nanoseconds. It operates within a supply voltage range of 3 volts to 3.6 volts and supports a wide industrial operating temperature range from -40°C to +85°C. The component is housed in a 64-terminal thin quad flatpack (TQFP) package measuring 14x14 millimeters.

Feature Summary

• Dual-port architecture enabling independent simultaneous read/write operations on separate ports.

Applications

• Data buffering in high-speed digital signal processing systems.

Procurement Notes

This component has reached end-of-life status and is no longer manufactured by Renesas Electronics Corporation. Procurement must rely on existing stock or authorized distributors for remaining inventory. Verification of authenticity is critical due to the discontinued nature of the part. Buyers should confirm the specific suffix details against original datasheets to ensure compatibility with legacy designs before finalizing acquisition.

Selection Notes

Designers requiring this specific 55-nanosecond access speed and 16-kilobit capacity should verify pinout compatibility with replacement options. The 64-TQFP package dimensions must be checked against current board layouts. Consider upgrading to newer series members if long-term supply assurance is required, ensuring that electrical parameters such as voltage levels and timing characteristics remain within acceptable design margins.

Part Context

The 71V321S55PFI8 belongs to the broader 71V321S family of dual-port SRAMs produced by Renesas Electronics. This family offers various access speeds and packaging options to suit different performance requirements. The 'S' designation typically indicates specific speed grades within the product line. These components are designed for applications requiring high-speed data exchange between two independent processors or logic blocks.

Replacement Considerations

The document identifies 71V321L25PFGI8 as an upgrade substitute. Designers must evaluate differences in access speed and package variations when transitioning to this alternative.