71V3558SA133BQGI

Memory IC Overview

The Renesas Electronics Corporation 71V3558SA133BQGI is a synchronous Single Data Rate Zero Bus Turnaround SRAM with a total storage capacity of 4.5 Megabits. The memory organization is structured as 256K words by 18 bits, providing wide data interfaces suitable for high-performance applications. It operates at a maximum clock frequency of 133 MHz with an access time of 4.2 nanoseconds. The device supports a supply voltage range of 3.135V to 3.465V and is housed in a 165-CABGA package measuring 13x15 mm. It is designed for industrial temperature ranges from -40°C to 85°C.

Memory IC Feature Summary

• Synchronous SDR architecture with Zero Bus Turnaround technology for efficient data transfer
• Pipelined outputs with burst counter functionality for high-speed parallel processing
• Wide 18-bit data interface optimized for complex system integration
• Industrial-grade operational stability across extended temperature environments

Memory IC Applications

• High-performance networking equipment requiring fast buffer memory
• Industrial automation systems needing reliable volatile storage
• Telecommunications infrastructure utilizing parallel data buses
• Embedded control units demanding low-latency memory access

Memory IC Procurement Notes

Verify component authenticity through authorized channels due to discontinuation status. Confirm package integrity and moisture sensitivity handling procedures before assembly. Cross-reference datasheet revisions to ensure compatibility with existing design specifications. Validate thermal performance under actual operating conditions. Check for alternative sourcing options given the end-of-life notification.

Memory IC Selection Notes

Select this component when a 18-bit wide synchronous SRAM interface is required. Ensure the design accommodates the specific 165-CABGA footprint dimensions. Verify that the system power supply strictly maintains the 3.135V to 3.465V range. Consider the 133 MHz clock limit for timing closure in high-speed designs. Evaluate thermal dissipation requirements for the CABGA package in enclosed spaces.

Memory IC Part Context

This part belongs to the 71V3558 family of synchronous ZBT SRAMs manufactured by Renesas Electronics. It shares architectural similarities with other variants in the series but differs in speed grade and packaging. The SA suffix typically denotes specific speed and temperature characteristics within the product line. Understanding the broader family helps in identifying compatible pin-outs and electrical behaviors across related components.

Memory IC Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. The component is listed as discontinued. Designers should consult official Renesas resources for potential obsolescence management strategies or equivalent replacements with similar electrical and mechanical specifications.