71V2556S150PFGI

Overview

The 71V2556S150PFGI is a 4.5 Mbit synchronous SRAM organized as 128K x 36, manufactured by Renesas Electronics Corporation. It operates with a 3.3V core supply and supports a maximum clock frequency of 150 MHz with a 3.8 ns access time. The device utilizes ZBT technology to eliminate dead bus cycles during read/write transitions. It features pipelined output architecture and is housed in a 100-pin TQFP package (14x14 mm) suitable for surface mount installation.

Feature Summary

• Zero Bus Turnaround (ZBT) technology eliminates dead bus cycles between read and write operations
• Pipelined architecture provides four cycles of data for a single address presentation
• Registers data I/O, address, and control signals for high-speed synchronous operation

Applications

• High-performance real-time engine systems
• Industrial equipment requiring fast memory access
• Embedded systems utilizing parallel interface architectures

Procurement Notes

Verify component authenticity through authorized distributors due to End-of-Life status. Confirm RoHS compliance and moisture sensitivity level prior to assembly. Check for valid PCN documentation regarding manufacturing site changes or label updates. Ensure storage conditions meet specified humidity requirements before soldering.

Selection Notes

Select this component for applications requiring high-speed parallel data transfer with minimal turnaround latency. Consider the 128K x 36 organization for wide data bus interfaces. Evaluate thermal performance within the -40°C to 85°C operating range. Verify voltage compatibility with 3.3V core and 2.5V I/O supplies if applicable.

Part Context

This part belongs to the 71V2556 family of synchronous SRAMs designed for high-throughput data processing. It represents a specialized solution for systems needing rapid random access without refresh cycles. The ZBT designation indicates optimized bus turnaround capabilities compared to standard synchronous memories.

Replacement Considerations

The 71V2556S133PFGI is documented as a similar substitute within the same manufacturer portfolio.