71V3557S75PFGI8

Overview

The IDT71V3557S75PFGI8 is a synchronous single data rate zero bus turnaround SRAM manufactured by Renesas Electronics Corporation. It provides a total storage capacity of 4.5 megabits organized as 128K words by 36 bits. The device features a parallel interface with an access time of 7.5 nanoseconds and operates within a supply voltage range of 3.135 volts to 3.465 volts. It is housed in a 100-pin Thin Quad Flat Package (14x14 mm) and supports surface mount installation. The component is rated for an operating temperature range from -40°C to +85°C.

Feature Summary

• Supports synchronous single data rate operation with zero bus turnaround technology for efficient data transfer.
• Provides high-density memory organization suitable for complex digital signal processing applications.
• Features a wide operating temperature range for reliable performance in industrial environments.

Applications

• Digital signal processing systems requiring fast memory access
• Network communication equipment buffer storage
• Industrial control system data logging

Procurement Notes

This specific part number has been officially declared obsolete by the manufacturer. Verification of current availability requires checking authorized distributors for remaining stock or approved replacement components. Ensure that any substitute parts maintain compatibility with the original design specifications, including pinout, voltage levels, and timing requirements, before integration into existing hardware systems.

Selection Notes

Engineers should evaluate alternative components from the same product family or newer generations that offer equivalent electrical characteristics. Considerations must include verifying package dimensions for mechanical fit, confirming voltage tolerance ranges, and ensuring the replacement supports the required access speeds. Cross-referencing official datasheets is essential to confirm functional equivalence and environmental ratings.

Part Context

The IDT71V3557 series represents a line of high-performance synchronous SRAMs designed for demanding applications. This specific variant utilizes the S suffix to denote specific speed grades and package configurations within the broader portfolio. The component was widely used in scenarios requiring low-latency memory solutions before being superseded by newer iterations with improved efficiency or packaging options.

Replacement Considerations

Officially documented similar replacements include the 71V547S100PFGI8 from Renesas Electronics Corporation. Verify pin compatibility and electrical specifications when substituting this obsolete component with available alternatives.