71V2546S100PFG

Overview

The 71V2546S100PFG is a 4.5Mb synchronous ZBT SRAM IC manufactured by Renesas Electronics Corporation. It features a parallel interface with a clock frequency of 100 MHz and an access time of 5 ns. The device is organized as 128K x 36 and operates within a supply voltage range of 3.135V to 3.465V. It is housed in a 100-TQFP (14x14) surface-mount package and supports a commercial operating temperature range of 0°C to 70°C.

Feature Summary

• Zero Bus Turnaround (ZBT) technology eliminates dead cycles between read and write operations.
• Internally synchronized output buffer enable removes the need for external OE control.
• Single R/W control pin simplifies interface logic requirements.
• Positive clock-edge triggered registers support fully pipelined applications.

Applications

• High-performance processor secondary cache systems
• Network equipment data buffering
• Industrial automation control units

Procurement Notes

Verify component authenticity through authorized distributors due to End-of-Life status. Confirm RoHS compliance, as some variants may not meet current standards. Validate package integrity upon receipt. Check for specific suffix variations that may indicate different assembly sites or label changes documented in Product Change Notices.

Selection Notes

Select this part for designs requiring high-speed synchronous memory with minimal bus turnaround latency. Ensure the system architecture supports 3.3V power supplies and 2.5V I/O levels. Verify that the 100-pin TQFP footprint matches the PCB layout constraints. Consider thermal management for the specified commercial temperature range.

Part Context

This component belongs to the 71V2546 family of Zero Bus Turnaround Synchronous SRAMs. It shares architectural similarities with other variants like the 71V2546S133PFG and 71V2546S150PFG, differing primarily in clock speed and access time specifications while maintaining the same memory organization and interface protocol.

Replacement Considerations

Publicly confirmed substitute part numbers include 71V2546S133PFG and 71V2546S150PFG from Renesas Electronics Corporation. These alternatives offer higher clock frequencies but maintain compatible interfaces and pinouts.