71321LA35TF

Memory IC Overview

The Renesas Electronics Corporation 71321LA35TF is a dual-port static random-access memory (SRAM) integrated circuit. It features an asynchronous parallel interface with a storage capacity of 16Kb, organized as 2K words by 8 bits. The device supports a supply voltage range of 4.5V to 5.5V and offers a maximum access time of 35ns. It is housed in a 64-lead Thin Quad Flat Package (TQFP) measuring 10x10mm. The component operates within a commercial temperature range of 0°C to 70°C.

Memory IC Feature Summary

• Dual-port architecture enabling independent simultaneous access from two separate processors or systems.
• Asynchronous operation allowing flexible timing control without reliance on a global clock signal.
• CMOS technology providing low power consumption relative to older bipolar SRAM implementations.

Memory IC Applications

• Data buffering between high-speed processors and slower peripheral devices.
• Cache memory implementation in embedded control systems.
• FIFO buffer applications requiring independent read and write ports.

Memory IC Procurement Notes

Verify the specific suffix requirements for package type and RoHS compliance when sourcing replacements. Confirm that the target system voltage aligns with the 4.5V to 5.5V operating range. Check for end-of-life status and availability of qualified second-source components. Ensure proper handling procedures are followed due to moisture sensitivity classification.

Memory IC Selection Notes

Select this component for designs requiring independent dual-port access to shared memory resources. Consider the 64-TQFP package for surface-mount assembly constraints. Evaluate the 35ns access speed against processor cycle times to ensure adequate performance margins. Verify thermal dissipation capabilities within the specified commercial temperature range.

Memory IC Part Context

This part belongs to the 71321LA series of dual-port SRAMs manufactured by Renesas Electronics. It serves as a standard solution for applications needing fast, non-volatile data retention during power cycles while maintaining independent port functionality. The series is designed for general-purpose memory buffering in industrial and consumer electronics.

Memory IC Replacement Considerations

The 71321LA20TFG8 is listed as an upgrade replacement option. Verify pin compatibility and electrical specifications before substitution. Ensure the alternative meets the same voltage and temperature requirements.