IDT71V2546S100PFI

Memory IC Overview

The IDT71V2546S100PFI is a 3.3V high-speed synchronous SRAM with a 4.5 Mbit capacity organized as 128K x 36. It utilizes Zero Bus Turnaround (ZBT) technology to eliminate dead cycles between read and write operations. The device features pipelined outputs, a 100-pin TQFP package, and supports burst counters for linear or interleaved sequences.

Memory IC Feature Summary

• Zero Bus Turnaround eliminates dead cycles between read and write transitions
• Fully pipelined architecture with positive clock-edge triggered registers
• Internal synchronization of output buffer enable removes external OE control requirements
• On-chip burst counter supporting four-word linear or interleaved sequences

Memory IC Applications

• High-performance system memory buffering
• Network router and switch data storage
• Telecommunications equipment cache applications

Memory IC Procurement Notes

Verify the specific suffix 'S100PFI' against manufacturer documentation to confirm speed grade and package type. Confirm RoHS compliance status as older Renesas/IDT products may not meet current environmental standards. Check for obsolescence notices from Renesas Electronics Corporation before finalizing procurement plans.

Memory IC Selection Notes

Select this component when ZBT latency reduction is required over standard synchronous SRAMs. Ensure the design accommodates the dual voltage requirement of 3.3V core and 2.5V I/O supplies. Verify that the 100-pin TQFP footprint matches the PCB layout constraints.

Memory IC Part Context

This part belongs to the IDT71V2546 family of 3.3V Synchronous ZBT SRAMs manufactured by Integrated Device Technology, now part of Renesas Electronics Corporation. The family includes variants with different speeds and packages, such as BGA options, designed for high-throughput parallel data interfaces.

Memory IC Replacement Considerations

Consult official Renesas cross-reference guides for verified substitutes. Generic synchronous SRAMs lack ZBT capabilities and will introduce bus turnaround delays.