71V2546S150PFG

Memory IC Overview

The 71V2546S150PFG is a 4.5 Mbit Synchronous Static Random Access Memory (SRAM) integrated circuit manufactured by Renesas Electronics Corporation. It utilizes Zero Bus Turnaround (ZBT) technology with a parallel interface and operates at a clock frequency of 150 MHz, achieving an access time of 3.8 ns. The device features a memory organization of 128K x 36 bits and requires a core voltage supply of 3.3 V. It is housed in a 100-pin Thin Quad Flat Package (TQFP) with dimensions of 14x14 mm. The component supports surface mount installation and functions within a commercial operating temperature range of 0°C to 70°C.

Memory IC Feature Summary

• Employs Zero Bus Turnaround (ZBT) architecture for high-speed synchronous data transfer without bus turnaround cycles.
• Features pipelined architecture to support continuous data throughput at specified clock frequencies.
• Provides a wide 36-bit data bus width suitable for high-bandwidth applications.

Memory IC Applications

• High-performance networking equipment requiring fast cache memory
• Industrial control systems needing rapid data processing
• Telecommunications infrastructure components

Memory IC Procurement Notes

This component is officially listed as obsolete or end-of-life by the manufacturer. Verification of availability should focus on remaining stock from authorized distributors or certified secondary market suppliers. Ensure that any sourced units are genuine and match the specific suffix PFG for the 100-TQFP package. Confirm RoHS compliance status, as older batches may not meet current environmental regulations.

Memory IC Selection Notes

Select this part when a 3.3V synchronous SRAM with a 36-bit width and 150 MHz speed is required. It serves as a direct replacement for previous IDT variants within the 71V2546 family. Consider the 100-TQFP footprint constraints during PCB layout. Verify thermal requirements for the commercial temperature grade if ambient conditions exceed standard limits.

Memory IC Part Context

The 71V2546S150PFG belongs to the Renesas (formerly IDT) 71V2546 series of ZBT Synchronous Pipelined SRAMs. This series is designed for applications demanding high bandwidth and low latency. The 'S' indicates synchronous operation, while '150' denotes the 150 MHz speed grade. The 'PFG' suffix specifically identifies the 100-lead TQFP plastic package variant.

Memory IC Replacement Considerations

Compatible substitutes include other members of the 71V2546 family, such as the 71V2546S133BGI, though pinout and package differences must be verified. Cross-referencing with equivalent parts from other manufacturers requires careful validation of electrical parameters and physical dimensions.