71V3557S80BGI

Overview

The IDT71V3557S80BGI is a synchronous single data rate zero bus turnaround SRAM manufactured by Renesas Electronics. It provides a storage capacity of 4.5 Mbit organized as 128K words by 36 bits. The device features an access time of 8 ns and operates on a parallel interface with a supply voltage range of 3.135 V to 3.465 V. It is housed in a 119-pin PBGA package measuring 14x22 mm and supports an industrial operating temperature range from -40°C to +85°C.

Feature Summary

• Supports synchronous single data rate operation with zero bus turnaround capability for efficient bidirectional data transfer.
• Provides high-speed parallel interface with 36-bit word width for wide data path applications.
• Includes on-chip burst counter and programmable pipeline depth for optimized memory performance.

Applications

• High-performance networking equipment requiring fast packet buffering
• Telecommunications systems utilizing synchronous data processing
• Industrial control systems needing reliable volatile memory storage

Procurement Notes

Verify the specific suffix BGI confirms the 119-PBGA package and industrial temperature grade. Confirm RoHS compliance status and moisture sensitivity level requirements for your assembly process. Check current lifecycle status as this component may be subject to obsolescence notices from the manufacturer.

Selection Notes

Select this part when a 36-bit wide synchronous SRAM interface is required. Ensure the system clock frequency aligns with the 8 ns access time specification. Verify that the PCB layout supports the 119-ball BGA footprint and thermal requirements for the specified operating temperature range.

Part Context

This component belongs to the IDT 71V3557 family of synchronous ZBT SRAMs. It shares architectural similarities with other members like the IDT71V3557S75BQ8 but differs in speed grade, package type, and pinout configuration. The family is designed for high-throughput memory applications in embedded systems.

Replacement Considerations

Direct substitutes include IDT71V3557S80BGGI and IDT71V3557SA80BGGI. Verify pin compatibility and electrical specifications before substitution. Other variants in the 71V3557 series may require schematic modifications due to differing package footprints or timing characteristics.