71V321L55J8

Overview

The 71V321L55J8 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 2K words by 8 bits. The device features asynchronous parallel interface operation with a maximum access time of 55 nanoseconds. It operates within a supply voltage range of 3.0 volts to 3.6 volts and supports an industrial temperature range from -40°C to +85°C. The component is housed in a 52-lead Plastic Leadless Chip Carrier (PLCC) package.

Feature Summary

• Dual-port architecture enabling independent simultaneous read/write operations on both ports
• Asynchronous parallel interface for straightforward system integration
• Industrial-grade operational capability across extended temperature ranges

Applications

• High-speed data buffering in communication systems
• Cache memory implementation in embedded processors
• Data storage in industrial control equipment

Procurement Notes

Verify the specific suffix J8 against official Renesas documentation to confirm pinout compatibility and package dimensions. Confirm RoHS compliance status as older variants may not meet current environmental standards. Check for End-of-Life notifications or Product Change Notices that may affect long-term availability or manufacturing continuity.

Selection Notes

Select this component when dual-port functionality is required for concurrent data handling. Ensure the 55 ns access speed meets system timing requirements. Verify that the 52-PLCC package fits the available PCB footprint. Consider power consumption limits under the specified 3V to 3.6V operating voltage range.

Part Context

This part belongs to the 71V321L series of dual-port SRAMs. The series offers various access speeds and packaging options to suit different design constraints. The 71V321L55 variant specifically targets applications requiring moderate speed with robust industrial reliability.

Replacement Considerations

Consult official Renesas substitution guides for verified equivalents. Cross-reference pinouts and electrical specifications carefully before replacing.