71V547S100PFGI

Overview

The IDT71V547S100PFGI is a 4.5 Mbit (128K x 36) synchronous static random-access memory (SRAM) IC manufactured by Integrated Device Technology, now part of Renesas Electronics. It operates with a single 3.3V power supply and supports a maximum clock frequency of 66 MHz, corresponding to a 10 ns access time. The device utilizes a parallel interface and is housed in a 100-pin Thin Quad Flat Package (TQFP). It features Zero Bus Turnaround (ZBT) technology for high-speed data transfer.

Feature Summary

• Supports Zero Bus Turnaround (ZBT) technology to eliminate dead cycles between read and write operations.
• Features internally synchronized output buffer enable to simplify control logic requirements.
• Includes a burst counter supporting four-word burst capabilities for efficient sequential data access.

Applications

• High-performance embedded systems requiring fast synchronous memory access.
• Network infrastructure equipment utilizing flow-through or pipelined data paths.
• Industrial automation controllers needing reliable volatile storage with low latency.

Procurement Notes

Verify the manufacturer designation carefully, as IDT was acquired by Renesas Electronics. Confirm that the specific suffix matches the required package type and temperature range. Ensure compatibility with existing board layouts for the 100-pin TQFP form factor. Check for any product change notices regarding pinout or electrical specifications before finalizing procurement orders.

Selection Notes

Select this component when system architecture demands synchronous SRAM with ZBT performance characteristics at 3.3V logic levels. Compare against other members of the 71V547 family if different access speeds or organizational variants are needed. Ensure the design accommodates the moisture sensitivity level and thermal dissipation requirements associated with the TQFP-100 package.

Part Context

This device belongs to the IDT 71V547 series of synchronous ZBT SRAMs. The series offers various speed grades and organizational options to suit different bandwidth requirements. As an industry-standard memory solution, it provides a drop-in replacement for many legacy asynchronous designs while offering superior throughput through synchronous operation and burst modes.

Replacement Considerations

The IDT71V547S100PFGI may be functionally replaced by the Renesas 71V547S100PFGI8. Verify pin compatibility and electrical parameters before substitution. Other similar devices within the 71V547 family may offer alternative speed grades or packaging options.