71V3558S166PFG8

Overview

The 71V3558S166PFG8 is a 4.5 Mbit (256K x 18) synchronous ZBT SRAM manufactured by Renesas Electronics Corporation. It operates with a core voltage of 3.3V and supports clock frequencies up to 166 MHz, featuring a 4.2 ns access time. The device utilizes a parallel interface and is housed in a 100-TQFP package. It is designed for high-performance data buffering applications requiring fast random access capabilities.

Feature Summary

• Supports synchronous single-data-rate operation with zero wait state burst access
• Features pipelined architecture to eliminate dead bus cycles during read-write transitions
• Includes dedicated chip select inputs for flexible memory organization

Applications

• High-speed data buffering in telecommunications equipment
• Cache memory implementation in industrial control systems
• Data storage in network infrastructure devices

Procurement Notes

Verify component authenticity through authorized distributors due to end-of-life status. Confirm RoHS compliance and moisture sensitivity level requirements before procurement. Check for valid replacement part numbers as original supply may be limited or discontinued.

Selection Notes

Select this component for designs requiring 18-bit wide synchronous memory interfaces. Ensure system timing constraints align with the 166 MHz maximum clock frequency. Verify that the 100-TQFP package dimensions fit the target PCB layout and thermal requirements.

Part Context

This part belongs to the 71V3558 series of synchronous ZBT SRAMs. It shares architectural similarities with other members like the 71V3558S133PFG but offers higher speed performance. The series is characterized by low power consumption and high reliability for embedded memory applications.

Replacement Considerations

Consider the 71V3558S166PFG as a similar alternative if packaging variations are acceptable. Verify pin compatibility and electrical specifications against the original design requirements before substitution.