71V546XS133PF

Overview

The IDT71V546XS133PF is a high-speed synchronous ZBT SRAM organized as 128K x 36, providing a total memory density of 4.5 Mbit. It operates with a maximum clock frequency of 133 MHz and features a typical access time of 4.2 ns. The device utilizes a single 3.3V core power supply and supports 3.3V I/O levels. It is housed in a 100-pin Thin Quad Flatpack (TQFP) package, specifically identified as 100-TQFP (14x14), suitable for surface mount applications.

Feature Summary

• Synchronous Zero Bus Turnaround (ZBT) architecture enables high-performance data transfer with reduced bus turnaround latency.
• Integrated burst counter supports interleaved or linear burst modes for efficient sequential data access.
• Self-timed write cycle allows flexible write control with global write enable and byte write capabilities.

Applications

• High-speed cache memory systems
• Network routing and switching equipment
• Telecommunications infrastructure

Procurement Notes

Verify component authenticity through authorized Renesas Electronics channels, as IDT is now part of Renesas. Confirm RoHS compliance status, as some listings indicate non-compliance. Check for obsolescence status and lead times from verified distributors. Ensure the 100-TQFP package matches PCB footprint requirements. Validate temperature range specifications against application environmental constraints.

Selection Notes

Select this component when a 128K x 36 organization is required for synchronous memory interfaces. The 133 MHz speed grade suits systems needing sub-5ns access times. Compare against other ZBT SRAMs if different densities or pinouts are needed. Consider the TQFP package for standard surface mount assembly processes. Verify voltage compatibility with system 3.3V logic levels.

Part Context

This device belongs to the IDT 71V546 family of synchronous ZBT SRAMs. It shares architectural similarities with other members like the 71V546S133PF but may differ in specific speed grades or packaging options. The family is designed for high-bandwidth applications requiring low-latency memory access. Renesas Electronics continues support for this product line following the acquisition of IDT.

Replacement Considerations

Public confirmed substitute: IS61NLP12836B-200TQLI by ISSI. Verify electrical compatibility and pinout alignment before substitution.