71321LA55JI

Memory IC Overview

The Renesas Electronics Corporation 71321LA55JI is a high-speed static random access memory (SRAM) component with a storage capacity of 16 kbit, organized as 2k x 8. It features an asynchronous parallel interface and a maximum access time of 55 ns. The device operates within a supply voltage range of 4.5 V to 5.5 V, with a maximum power supply current of 140 mA. It supports surface mount installation in a PLCC-52 package and functions reliably across a temperature range of -40°C to +85°C.

Memory IC Feature Summary

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

Memory IC Applications

• High-speed data buffering in communication systems
• Cache memory for embedded processors
• Digital signal processing applications

Memory IC Procurement Notes

Verify the exact suffix against official documentation, as variations like 'JI' may indicate specific packaging or testing configurations. Confirm RoHS compliance status and moisture sensitivity levels prior to integration. Check for end-of-life notices or obsolescence warnings from Renesas Electronics to ensure long-term availability for production cycles.

Memory IC Selection Notes

Select this component when dual-port functionality is required for concurrent master-slave or peer-to-peer data exchange. Ensure the system design accommodates the 55 ns access time and 140 mA current draw. Verify that the PLCC-52 footprint matches the PCB layout constraints and that the operating temperature range aligns with the environmental conditions.

Memory IC Part Context

This part belongs to the 71321 series of dual-port SRAMs from Renesas Electronics. These devices are designed for applications requiring fast, independent access to shared memory resources without bus contention. The series typically includes variants with different access speeds and package options to suit various performance and form factor requirements.

Memory IC Replacement Considerations

Consult official Renesas documentation for verified cross-references. Generic equivalents may not support the specific dual-port control logic or electrical characteristics of the 71321LA55JI.