71V321S35TF

Overview

The Renesas Electronics Corporation 71V321S35TF is a dual-port static random-access memory (SRAM) integrated circuit. It features a storage capacity of 16Kb, organized as 2K words by 8 bits. The device utilizes a parallel interface and operates with an access time of 35 ns. It is designed for surface mount installation in a 64-TQFP package measuring 10x10 mm. The component supports a supply voltage range of 3V to 3.6V and functions within a temperature range of 0°C to 70°C.

Feature Summary

• Supports simultaneous independent asynchronous access from two separate ports
• Includes automatic power-down mode controlled by chip enable signals
• Features TTL-compatible single 3.3V power supply operation

Applications

• Stand-alone 8-bit dual-port SRAM implementations
• Systems requiring port-to-port communication via interrupt flags
• Battery backup applications with data retention capabilities

Procurement Notes

Verify the current manufacturing status before procurement, as this specific part number may be obsolete or discontinued. Confirm that the RoHS compliance status meets regulatory requirements for your target market, as indicated by non-compliance data. Ensure the 64-TQFP package dimensions align with your PCB footprint design. Check for available replacement components if production continuity is required.

Selection Notes

Select this component when a true dual-ported memory solution is needed for high-speed data exchange between two processors or systems. The 35 ns access speed suits moderate-frequency asynchronous operations. Consider the 64-pin TQFP package constraints and the 0°C to 70°C commercial temperature range limitations during system design.

Part Context

This device belongs to the 71V321 series of dual-port SRAMs manufactured by Renesas Electronics. It shares architectural similarities with other members like the 71V321L25 but differs in speed grade and temperature rating. The 'S' suffix typically denotes specific speed and package variations within the family.

Replacement Considerations

The 71V321L25TFG is identified as an upgrade alternative. Verify pin compatibility and electrical parameter differences before substitution.