71V3556SA150BG

Memory IC Overview

The 71V3556SA150BG is a synchronous single data rate zero bus turnaround SRAM manufactured by Renesas Electronics Corporation. It provides a total storage capacity of 4.5 Mbit organized as 128K words by 36 bits. The device operates with a maximum clock frequency of 150 MHz and features an access time of 3.8 ns. It utilizes a parallel interface and requires a supply voltage between 3.135 V and 3.465 V. The component is housed in a 119-pin PBGA package measuring 14x22 mm, designed for surface mount installation within an operating temperature range of 0°C to 70°C.

Memory IC Feature Summary

• Synchronous SDR architecture supporting high-speed data transfer via a parallel interface
• Zero bus turnaround (ZBT) technology enabling continuous data flow without wait states
• Pipelined output structure optimized for burst read operations at frequencies up to 150 MHz

Memory IC Applications

• High-performance networking equipment requiring fast packet buffering
• Telecommunications systems utilizing wide data buses
• Industrial control systems needing rapid random access memory

Memory IC Procurement Notes

Verify the specific suffix BG against official Renesas documentation to confirm the 119-PBGA package configuration. Confirm RoHS compliance status as sources indicate non-compliance. Check current lifecycle status as multiple records suggest end-of-life or discontinuation. Ensure the supplier provides valid traceability for this obsolete component type before finalizing acquisition.

Memory IC Selection Notes

Select this component when a 128K x 36 organization is required for wide-data applications. Choose this part over narrower word variants if system architecture demands 36-bit data paths. Consider the 150 MHz speed grade for timing-critical designs. Verify that the 119-PBGA footprint matches the PCB layout constraints compared to other package options in the series.

Memory IC Part Context

This part belongs to the 71V3556 family of synchronous ZBT SRAMs from Renesas. It shares architectural similarities with variants like the 71V3556SA100BG but offers higher clock speeds. The family typically includes different access times and package types such as CABGA. This specific model represents the high-speed PBGA variant within the broader 4.5 Mbit memory portfolio.

Memory IC Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material.