71V546S100PF

Overview

The IDT71V546S100PF is a 4.5 Mbit synchronous static random-access memory (SRAM) IC manufactured by Integrated Device Technology, now part of Renesas Electronics. It features a parallel interface with a memory organization of 128K x 36 bits. The device operates at a maximum clock frequency of 100 MHz and supports a data access time of 5 ns. It utilizes Zero Bus Turnaround (ZBT) technology to eliminate dead cycles between read and write operations. The component is supplied in a 100-pin Thin Quad Flatpack (TQFP) package measuring 14 x 20 mm.

Feature Summary

• Zero Bus Turnaround (ZBT) technology eliminates bus turnaround dead cycles between read and write operations.
• Single Read/Write control pin simplifies system design by removing the need for separate R/W signals.
• Internally synchronized output buffer enable removes the requirement for external Output Enable (OE) control.

Applications

• High-performance telecommunications systems requiring fast data buffering
• Network infrastructure equipment utilizing parallel SRAM interfaces
• Industrial control systems needing reliable synchronous memory solutions

Procurement Notes

Verify the specific suffix against official Renesas documentation, as manufacturing transitions from IDT to Renesas may affect ordering codes. Confirm RoHS compliance status and moisture sensitivity level requirements before procurement. Check for product discontinuation notices or obsolescence alerts associated with this specific part number variant.

Selection Notes

Select this component when a 128K x 36 bit configuration is required for high-speed parallel data processing. Ensure the system design accommodates the 100-pin TQFP footprint and 3.3V power supply specifications. Consider ZBT advantages over standard synchronous SRAMs if minimizing bus turnaround latency is critical for application performance.

Part Context

This component belongs to the IDT 71V546 series of synchronous ZBT SRAMs. The series is characterized by high-speed operation and efficient bus management. Following the acquisition of IDT by Renesas Electronics, these devices are managed under the Renesas portfolio, maintaining technical continuity while updating branding and support structures.

Replacement Considerations

Publicly confirmed substitute part numbers include 71V547S100PFGI8 and IS61NLP12836B-200TQLI. Verify electrical compatibility and pinout alignment before substitution.