71V3558S100PFG

Overview

The IDT71V3558S100PFG is a 4.5Mb (256K x 18) synchronous ZBT SRAM manufactured by Renesas Electronics Corporation, formerly IDT. It operates with a maximum clock frequency of 100 MHz and features a typical access time of 5 ns. The device utilizes a 100-pin TQFP package measuring 14x14 mm. It supports a supply voltage range of 3.135V to 3.465V and functions within an operating temperature range of 0°C to 70°C.

Feature Summary

• Synchronous Zero Bus Turnaround (ZBT) architecture eliminates dead cycles between read and write operations.
• Internally synchronized output buffer enable removes the need for external Output Enable (OE) control.
• Single Read/Write control pin simplifies interface logic requirements.
• Supports 4-word burst capabilities in both interleaved and linear modes.

Applications

• High-performance embedded systems requiring fast data buffering
• Network infrastructure equipment
• Industrial automation controllers

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm RoHS compliance status as documentation indicates potential variations across production batches. Check for end-of-life notifications since some sources list this part as discontinued. Ensure proper ESD handling during storage and installation.

Selection Notes

Select this component when system design requires synchronous SRAM with zero wait states and pipelined outputs. Compare against asynchronous alternatives if power consumption is critical. Verify package compatibility with existing PCB footprints. Consider thermal management requirements for TQFP-100 packaging in enclosed environments.

Part Context

This device belongs to the IDT 71V3558 family of high-speed synchronous SRAMs. It shares architectural similarities with other ZBT devices like the 71V3556 series but offers different memory configurations. The product line was originally developed by Integrated Device Technology before being acquired by Renesas Electronics.

Replacement Considerations

Check for equivalent parts from Renesas such as the 71V3558SA series. Verify pinout compatibility before substituting with other vendors' synchronous SRAMs. Ensure electrical specifications match system requirements when considering cross-brand replacements.