71V321LA35PF8

Overview

The Renesas Electronics Corporation 71V321LA35PF8 is a high-speed, asynchronous dual-port static random-access memory (SRAM) device. It features a storage capacity of 16 kbit organized as 2K x 8 bits. The component supports parallel interface operations with a maximum access time of 35 ns. It operates within a supply voltage range of 3 V to 3.6 V and utilizes a 64-pin TQFP surface-mount package. The device is designed for standalone use or in conjunction with slave devices for wider data bus configurations.

Feature Summary

• Dual-port architecture enabling independent simultaneous access by two processors without external arbitration logic
• Integrated interrupt logic facilitates efficient interprocessor communication and status signaling
• Automatic power-down mode controlled by chip enable inputs to minimize standby power consumption

Applications

• Interprocessor communication links in embedded systems
• Master dual-port RAM configuration in 16-bit or wider data bus architectures
• High-speed buffer memory for asynchronous data transfer applications

Procurement Notes

Verify component authenticity through authorized distributors due to end-of-life status. Confirm moisture sensitivity level handling requirements during storage and assembly. Validate pin compatibility and electrical specifications against current design constraints before integration into new hardware platforms.

Selection Notes

Select this component for designs requiring independent dual-port access with integrated signaling. Ensure the system accommodates the 35 ns access speed and 3.0 V to 3.6 V operating voltage range. Consider the 64-TQFP package dimensions for PCB layout constraints and thermal management requirements.

Part Context

This part belongs to the 71V321L series of dual-port SRAMs from Renesas Electronics. It serves as a master device capable of interfacing with slave counterparts like the 71V321/421 series to expand word width while maintaining full-speed operation without additional discrete logic components.

Replacement Considerations

The 71V321L25PFG8 is listed as an upgrade substitute. Verify functional equivalence regarding pinout, voltage levels, and timing parameters before replacement.