71V3557S80PFGI

Overview

The IDT71V3557S80PFGI is a synchronous ZBT SRAM with a 4.5 Mbit capacity organized as 128K x 36. It features an 8 ns access time and operates on a 3.3 V supply voltage ranging from 3.135 V to 3.465 V. The device utilizes a parallel interface and is housed in a 100-TQFP (14x14) surface-mount package. It supports single-cycle deselect and includes a burst counter for efficient data handling.

Feature Summary

• Supports synchronous Single Data Rate (SDR) operation with Zero Bus Transition (ZBT) technology to reduce power consumption and signal noise.
• Integrates a hardware burst counter that automatically increments addresses during sequential read or write operations.
• Provides flow-through output mode allowing immediate data availability without pipeline latency.

Applications

• High-speed cache memory systems requiring low latency.
• Network infrastructure equipment utilizing parallel bus architectures.
• Industrial control systems needing reliable volatile storage.

Procurement Notes

Verify the specific suffix 'GI' against the manufacturer's official datasheet to confirm temperature range and packaging details, as suffixes define critical environmental and physical specifications. Confirm RoHS compliance status directly with the supplier, as historical records indicate potential non-compliance for earlier production runs of this component family.

Selection Notes

Select this component when a 36-bit wide data path is required for processor interfaces or high-performance computing applications. Ensure the design accommodates the 100-pin TQFP footprint and strictly adheres to the 3.3 V logic level requirements. Verify that the system clock frequency does not exceed the maximum operating limits defined for the 8 ns speed grade.

Part Context

This part belongs to the IDT 71V3557 series of synchronous ZBT SRAMs. The series offers various speed grades and package options, including BGA and TQFP configurations. The 71V3557 specifically targets applications demanding high bandwidth and low power dissipation through its advanced ZBT architecture.

Replacement Considerations

ISSI IS61NLF12836A-7.5TQLI is documented as a similar replacement option. Verify pin compatibility and electrical parameters before substitution.