71V3556SA166BQGI

Overview

The IDT71V3556SA166BQGI is a 4.5 Mbit synchronous static random-access memory (SRAM) integrated circuit manufactured by Renesas Electronics Corporation. It features a parallel interface with a data organization of 128K x 36 bits. The device supports a maximum clock frequency of 166 MHz and offers an access time of 3.5 ns. It operates within a supply voltage range of 3.135 V to 3.465 V and is designed for industrial temperature applications ranging from -40°C to +85°C. The component is housed in a 165-CABGA package measuring 13x15 mm.

Feature Summary

• Synchronous Single Data Rate (SDR) Zero Bus Turnaround (ZBT) architecture eliminates dead bus cycles during read-to-write or write-to-read transitions.
• Integrated address and control signal registers enable pipelined operation for high-speed data throughput.
• Supports 3.3V core voltage with standard parallel interface connectivity.

Applications

• High-performance networking equipment requiring fast buffer memory
• Industrial automation systems needing reliable volatile storage
• Telecommunications infrastructure utilizing synchronous data processing

Procurement Notes

Verify current availability status as the part may be discontinued or subject to production changes. Confirm that the specific suffix BQGI matches the required 165-CABGA package and industrial temperature grade (-40°C to +85°C). Ensure compatibility with existing board layouts regarding the 13x15 mm footprint and pin configuration before procurement.

Selection Notes

Select this component when a 4.5 Mbit capacity with a 36-bit wide data path is required. The 166 MHz speed and 3.5 ns access time suit applications demanding low-latency synchronous memory. Verify that the system design accommodates the 3.3V power supply requirements and the specific 165-ball CABGA package constraints.

Part Context

This SRAM belongs to the IDT 71V3556 family, which utilizes ZBT technology to optimize bus efficiency. The 'SA' suffix typically denotes the industrial temperature range variant. The device is part of Renesas's broader portfolio of high-speed memory solutions designed for embedded and communication applications.

Replacement Considerations

The 71V3556SA166BQGI8 is listed as a similar alternative, differing primarily in tape-and-reel packaging instead of tray packaging. Both share identical electrical specifications and package dimensions.