71V321L35J

Overview

The Renesas Electronics Corporation 71V321L35J is a dual-port static random-access memory (SRAM) integrated circuit. It features an asynchronous parallel interface with a storage capacity of 16 kilobits, organized as 2K words by 8 bits. The device supports a supply voltage range of 3 volts to 3.6 volts and offers a maximum access time of 35 nanoseconds. It is designed for surface-mount installation in a 52-pin Plastic Leaded Chip Carrier (PLCC) package. The component operates within a commercial temperature range of 0°C to 70°C.

Feature Summary

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

Applications

• Asynchronous data buffering in communication systems
• Cache memory implementation in embedded processors
• Data logging applications requiring high-speed temporary storage

Procurement Notes

Verify the specific suffix designation against official documentation, as standard listings often specify variants like J8 or JG. Confirm RoHS compliance status, as older manufacturing runs may not meet current environmental regulations. Check for End-of-Life notifications or Product Change Notices that may affect long-term availability and sourcing strategies.

Selection Notes

Select this component when a design requires independent dual-port access for concurrent data handling without bus contention. Ensure the system voltage aligns with the 3V to 3.6V operating range. Verify that the 52-PLCC package dimensions fit the printed circuit board layout constraints and thermal requirements.

Part Context

This part belongs to the 71V321L series of asynchronous dual-port SRAMs from Renesas Electronics. The series provides flexible memory solutions for applications needing simultaneous access from two different masters. Variants within the family differ primarily in speed grades and packaging options, maintaining consistent core functionality and pinout compatibility.

Replacement Considerations

Official upgrade alternatives include the 71V321L25JG and 71V321L25TFG models. These substitutes offer faster access times while maintaining pin compatibility. Verify that the improved performance does not introduce signal integrity issues in existing designs.