71V3558S166PFGI

Overview

The IDT71V3558S166PFGI is a synchronous single data rate zero bus turnaround static random access memory integrated circuit manufactured by Renesas Electronics Corporation. It features a storage capacity of 4.5 megabits organized as 256K words by 18 bits. The device supports clock frequencies up to 166 MHz with an access time of 4.2 nanoseconds. It operates on a supply voltage range of 3.135 volts to 3.465 volts and functions within a commercial temperature range of 0°C to 70°C. The component utilizes a parallel interface and is housed in a 100-pin thin quad flat package without lead.

Feature Summary

• Supports high-speed synchronous operations with zero bus turnaround capability for efficient bidirectional data transfer.
• Integrates pipelined output architecture to eliminate dead bus cycles during read-to-write or write-to-read transitions.
• Features a 3.3-volt core voltage with compatible 3.3-volt input/output logic levels.

Applications

• High-performance computing systems requiring fast data buffering
• Network infrastructure equipment utilizing parallel memory interfaces
• Industrial control systems needing reliable volatile storage

Procurement Notes

Verify the specific suffix PFGI against official datasheets to confirm the package type and temperature grade. Confirm RoHS compliance status through current manufacturer documentation, as production statuses may change. Ensure the source document explicitly identifies this part number to avoid confusion with similar variants in the 71V3558 family.

Selection Notes

Select this component when a 4.5Mb synchronous SRAM with a 166 MHz clock speed is required. The 100-pin TQFP package suits surface-mount applications with moderate pin counts. Verify that the system design accommodates the 3.3V power supply requirements and the specified operating temperature range for commercial environments.

Part Context

This device belongs to the 71V3558 series of synchronous ZBT SRAMs from Renesas Electronics. The series includes various speed grades and package options, such as the 133 MHz and 100 MHz variants. The 71V3558S166PFGI represents the highest speed grade available in the standard 100-pin plastic quad flat package format.

Replacement Considerations

The IDT71V3558XS133PFG is a documented substitute offering identical functionality at a lower 133 MHz clock frequency. Other potential replacements include the 71V3558S166PFG variant, which shares the same speed but may differ in packaging or suffix specifications.