71V546S133PFG

Overview

The IDT71V546S133PFG is a 4.5 Mbit synchronous ZBT SRAM IC manufactured by Renesas Electronics Corporation, formerly IDT. It features a parallel interface with a memory organization of 128K x 36 bits. The device operates at a clock frequency of 133 MHz with an access time of 5 ns. It requires a supply voltage between 3.135 V and 3.465 V and functions within a commercial temperature range of 0°C to 70°C. The component is housed in a 100-TQFP (14x20 mm) surface-mount package.

Feature Summary

• Synchronous Single Data Rate (SDR) Zero Bus Transition (ZBT) technology for high-speed data transfer
• Parallel memory interface supporting 36-bit word width
• Integrated burst counter and pipelined output architecture

Applications

• High-performance computing systems requiring fast cache memory
• Network infrastructure equipment utilizing parallel SRAM interfaces
• Industrial control systems needing reliable synchronous memory solutions

Procurement Notes

Verify the manufacturer status as this part is discontinued. Confirm availability through authorized distributors or secondary markets. Ensure compatibility with existing board designs regarding pinout and electrical specifications before procurement. Check for RoHS compliance and moisture sensitivity level requirements during storage and handling.

Selection Notes

Select this component when a 4.5 Mbit capacity with a 36-bit data bus is required. The 133 MHz speed suits applications demanding low latency. Consider the 100-TQFP package constraints for PCB layout. Evaluate alternatives if higher density or different I/O voltages are needed, as this specific part number represents a legacy product line.

Part Context

This device belongs to the IDT 71V546 family of synchronous ZBT SRAMs. It was originally produced by Integrated Device Technology before the company's acquisition by Renesas Electronics. The part is designed for general-purpose high-speed memory applications where synchronous operation provides timing advantages over asynchronous counterparts.

Replacement Considerations

Public confirmed substitute: 71V547S100PFGI8.