71V2546S133BGI8

Overview

The Renesas 71V2546S133BGI8 is a 4.5 Mbit Synchronous Single Data Rate (SDR) Zero Bus Turnaround (ZBT) Static Random Access Memory (SRAM). It features a memory organization of 128K x 36 bits and supports a maximum clock frequency of 133 MHz with an access time of 4.2 ns. The device operates on a core voltage of 3.3 V and includes 2.5 V I/O capabilities. It is housed in a 119-pin PBGA package.

Feature Summary

• Supports high-speed synchronous data transfer at up to 133 MHz
• Eliminates dead bus cycles during read-to-write or write-to-read transitions via Zero Bus Turnaround architecture
• Integrates 2.5 V I/O levels for compatibility with lower voltage logic systems

Applications

• High-performance embedded storage in telecommunications equipment
• Buffering and caching in industrial control systems
• Data acquisition modules requiring fast parallel memory access

Procurement Notes

Verify component authenticity through authorized channels due to discontinuation status. Confirm RoHS compliance requirements as the specific suffix may indicate leaded construction. Validate moisture sensitivity level handling procedures prior to assembly to prevent package damage during soldering processes.

Selection Notes

Select this component when system design requires wide 36-bit data paths and low-latency synchronous access. Ensure the host controller supports ZBT protocols to utilize the zero wait-state turnaround feature. Verify that the 119-pin BGA footprint aligns with existing PCB layout constraints and thermal management strategies.

Part Context

This part belongs to the 71V2546S family of synchronous SRAMs designed for applications demanding high bandwidth and deterministic timing. The series provides scalable memory solutions with varying speeds and organizations, maintaining pin compatibility within the family to simplify design upgrades.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Due to the product's end-of-life status, direct replacements must be evaluated based on functional equivalence and interface compatibility rather than official cross-reference lists.