71V3556SA100BQI8

Overview

The Renesas Electronics Corporation 71V3556SA100BQI8 is a synchronous Single Data Rate Zero Bus Turnaround (ZBT) Static Random Access Memory (SRAM) integrated circuit. It provides a total storage capacity of 4.5 Mbit, organized as 128K words by 36 bits. The device supports parallel interface operations with a maximum clock frequency of 100 MHz and features a typical access time of 5 ns. It operates within a supply voltage range of 3.135 V to 3.465 V. The component is housed in a 165-pin CABGA package measuring 13x15 mm and is designed for surface mount installation.

Feature Summary

• Synchronous ZBT architecture enabling high-speed data transfer with reduced bus turnaround latency
• Pipelined output structure optimized for burst read operations at frequencies up to 100 MHz
• 3.3V I/O compatibility allowing integration with standard logic families without level shifting

Applications

• High-performance networking equipment requiring fast packet buffering
• Industrial control systems utilizing parallel memory interfaces
• Telecommunications infrastructure supporting synchronous data processing

Procurement Notes

Verify the specific suffix 'I8' against official Renesas documentation to confirm industrial temperature rating and reel packaging specifications. Cross-reference the part number with current product change notices, as this series has been subject to end-of-life notifications. Ensure compliance with RoHS status requirements prior to procurement, as older batches may not meet current environmental standards.

Selection Notes

Select this component when a 36-bit wide data path is required for system architectures. The 100 MHz speed grade offers a balance between performance and power consumption compared to faster variants. Consider the 165-CABGA footprint during PCB layout planning to ensure adequate thermal dissipation and mechanical stability for surface mount assembly processes.

Part Context

This part belongs to the 71V3556 family of Synchronous ZBT SRAMs from Renesas. The family includes variants with different speeds, such as the 133 MHz and 150 MHz models, and alternative organizations like 256K x 18. The 71V3556SA100BQI8 specifically targets applications needing reliable 128K x 36 memory density with synchronous timing constraints.

Replacement Considerations

Direct substitutes include other members of the 71V3556 family, such as the 71V3556SA100BQ8 or 71V3556SA100BGI8, provided pinout and electrical characteristics match. Verify that any replacement maintains the same 165-CABGA package dimensions and 3.3V I/O levels.