71V321L55PFI

Overview

The Renesas Electronics Corporation 71V321L55PFI is a dual-port static random-access memory (SRAM) device with a total storage capacity of 16 kilobits. The memory organization is structured as 2K words by 8 bits, accessed via a parallel interface. It operates within a supply voltage range of 3.0 volts to 3.6 volts and supports an asynchronous access time of 55 nanoseconds. The component is housed in a 52-lead Plastic Leaded Chip Carrier (PLCC) package with J-leads. It is designed for surface-mount installation and functions reliably across an industrial temperature range from -40°C to +85°C.

Feature Summary

• Dual-port architecture enabling independent read/write operations on separate ports
• Asynchronous operation mode for flexible system integration
• Parallel data interface supporting standard logic levels

Applications

• Data buffering in high-speed digital signal processing systems
• Cache memory implementation in embedded microcontroller architectures
• Temporary storage in industrial control equipment interfaces

Procurement Notes

Verify the specific suffix PFI against official Renesas documentation to confirm the exact package type and lead configuration. Confirm RoHS compliance status as historical records indicate potential non-compliance for this series. Check current manufacturing status as older variants may be discontinued or subject to product change notifications. Ensure moisture sensitivity level handling procedures are followed during assembly.

Selection Notes

Select this component when a dual-port SRAM solution is required for simultaneous data access without bus contention. The 55 ns speed suits moderate-frequency applications where lower power consumption is prioritized over ultra-high speed. Verify that the 52-lead PLCC footprint matches the printed circuit board design constraints. Consider the 3.3V nominal supply requirement for compatibility with existing logic families.

Part Context

This part belongs to the 71V321L series of dual-port SRAMs manufactured by Renesas Electronics. The series offers various speed grades and package options to accommodate different performance and form-factor requirements. These devices are typically used in legacy or specialized industrial designs requiring robust, standalone memory solutions with independent port access capabilities.

Replacement Considerations

Direct replacement parts include the 71V321L55JI, which shares identical electrical specifications but utilizes a 52-lead PLCC package. Verify pinout compatibility and physical dimensions before substitution. Consult official datasheets for any minor functional differences between package variants.