71V3557S80PFGI8

Memory IC Overview

The 71V3557S80PFGI8 is a synchronous Single Data Rate (SDR) Zero Bus Turnaround (ZBT) SRAM manufactured by Renesas Electronics Corporation. It features a storage capacity of 4.5 Mbit organized as 128K x 36. The device supports a parallel interface with an access time of 8 ns and operates within a supply voltage range of 3.135 V to 3.465 V. It is housed in a 100-TQFP package measuring 14x14 mm and is designed for surface mount installation. The component functions as volatile memory.

Memory IC Feature Summary

• Supports synchronous SDR ZBT architecture to eliminate dead bus cycles during read-write transitions.
• Provides high-speed data access through a parallel interface optimized for system performance.
• Integrates dedicated write, data, address, and control registers for efficient operation.

Memory IC Applications

• High-performance embedded systems requiring fast volatile memory access
• Network infrastructure equipment utilizing parallel SRAM interfaces
• Industrial control applications needing reliable synchronous memory solutions

Memory IC Procurement Notes

This component has reached End-of-Life status and is no longer manufactured by Renesas Electronics Corporation. Verification of current availability requires checking authorized distributors for remaining stock or approved substitute part numbers. Ensure that any replacement components maintain compatibility with the original 128K x 36 organization and 100-TQFP package requirements for seamless integration into existing designs.

Memory IC Selection Notes

Select this component when designing systems that require synchronous ZBT SRAM with a 36-bit data width and 8 ns access speed. Verify that the design environment supports the specified 3.3V core voltage and 100-pin TQFP footprint. Consider alternative parts if RoHS compliance is mandatory, as this specific variant may not meet current environmental standards compared to newer generations.

Memory IC Part Context

The 71V3557S80PFGI8 belongs to the IDT 71V3557 series of synchronous SRAMs. This family is characterized by its zero bus turnaround capability, which enhances throughput in burst mode operations. The device is part of Renesas' broader portfolio of memory solutions aimed at improving system efficiency in networking and industrial applications through reduced latency and improved bus utilization.

Memory IC Replacement Considerations

The 71V547S100PFGI8 is listed as a similar replacement option from Renesas Electronics Corporation. Additionally, the IS61NLF12836A-7.5TQLI from ISSI is identified as a comparable alternative. Verify electrical and pinout compatibility before substitution.