71V2546S100BGI

Overview

The 71V2546S100BGI is a ZBT synchronous pipelined SRAM manufactured by Renesas Electronics. It features a 4 Mbit storage capacity organized as 128K x 36. The device operates with a 3.3V core supply and 2.5V I/O, supporting a maximum clock frequency of 100 MHz with an access time of 4.2 ns. It utilizes a parallel interface and is housed in a 119-pin PBGA package. The component supports single data rate (SDR) operations and includes boundary scan capabilities.

Feature Summary

• Zero Bus Turnaround (ZBT) technology eliminates dead cycles between read and write operations.
• Pipelined architecture allows four-word burst capability for high-speed data transfer.
• Internally synchronized output buffer enable removes the need for external OE control.
• Supports individual byte write control via dedicated BW pins.

Applications

• High-performance processor secondary cache systems
• Network infrastructure equipment requiring low-latency memory
• Industrial automation controllers
• Telecommunications base stations

Procurement Notes

Verify current availability status directly with Renesas or authorized distributors, as this component may be subject to discontinuation notices. Confirm RoHS compliance requirements against specific project standards, as older batches may not meet current environmental regulations. Ensure proper handling procedures are followed due to moisture sensitivity classification. Validate pin compatibility if replacing existing inventory on established PCB layouts.

Selection Notes

Select this part when system design requires a 36-bit wide data path with synchronous pipeline performance. The 2.5V I/O specification necessitates compatible voltage levels for connected logic devices. Consider the 119-pin BGA package constraints during PCB layout planning. Verify that the 3.3V core voltage aligns with available power rails in the target application environment.

Part Context

This component belongs to the 71V2546 series of Zero Bus Turnaround SRAMs. It shares architectural similarities with other members like the 71V2546S133 but offers a lower 100 MHz operating speed. The series is designed for applications demanding high throughput without bus turnaround delays. It represents a specialized memory solution within Renesas's broader portfolio of embedded memory products.

Replacement Considerations

The IDT71V2546S100BGI is a confirmed equivalent part number from the same product lineage. Verify electrical parameters and pinout compatibility before substitution. Check for any recent product change notifications affecting manufacturing sources or material composition.