71V321L55TF

Overview

The 71V321L55TFI8 is a dual-port static random-access memory (SRAM) integrated circuit manufactured by Renesas Electronics Corporation. It provides a storage capacity of 16 kilobits, organized as 2048 words by 8 bits. The device features asynchronous parallel interface with a maximum access time of 55 nanoseconds and a write cycle time of 55 nanoseconds. It operates within a supply voltage range of 3.0 volts to 3.6 volts. The component is housed in a 64-lead Thin Quad Flat Package (TQFP) measuring 10x10 millimeters. It supports an industrial operating temperature range from -40°C to +85°C.

Feature Summary

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

Applications

• Data buffering in high-speed digital signal processing systems
• Cache memory implementation in embedded controllers
• FIFO buffer applications in communication interfaces

Procurement Notes

Verify the exact suffix configuration against the original design specification, as variations such as TFI8 or TF8 indicate specific packaging or labeling changes. Confirm RoHS compliance status, as certain variants may not meet current environmental directives. Check for obsolescence notices or production discontinuation announcements from Renesas Electronics before finalizing procurement plans.

Selection Notes

Select this component when a non-volatile-free, low-latency memory solution is required for bidirectional data exchange between two processors. Ensure the system power supply remains stable within the 3.0V to 3.6V range to maintain timing integrity. Verify that the PCB layout accommodates the 64-TQFP package dimensions and thermal requirements for the specified industrial temperature range.

Part Context

This part belongs to the 71V321L series of dual-port SRAMs, which are designed for applications requiring fast, independent access from multiple masters. The series typically offers various speed grades and package options to suit different performance and form-factor constraints in industrial and commercial electronic designs.

Replacement Considerations

Check for direct pin-compatible replacements within the same family, such as the 71V321L25 series for faster access times, provided the slower 55ns speed is acceptable. Verify if alternative manufacturers offer functionally equivalent dual-port SRAMs with identical pinouts and electrical characteristics.