71V3558SA100BQGI

Overview

The 71V3558SA100BQGI is a 4.5 Mbit synchronous single data rate zero bus turnaround SRAM manufactured by Renesas Electronics Corporation. It features a parallel interface with a memory organization of 256K x 18 bits. The device supports a maximum clock frequency of 100 MHz and offers a typical access time of 5 ns. It operates within a supply voltage range of 3.135 V to 3.465 V and is housed in a 165-CABGA package measuring 13x15 mm. The component is rated for an industrial operating temperature range of -40°C to +85°C.

Feature Summary

• Synchronous Single Data Rate (SDR) architecture with Zero Bus Turnaround (ZBT) technology for efficient data transfer
• Pipelined burst counter mechanism supporting sequential read operations
• Parallel interface designed for high-speed data processing applications

Applications

• High-performance embedded systems requiring fast random access memory
• Industrial equipment control units
• Network infrastructure hardware components

Procurement Notes

This specific part number has been officially discontinued by the manufacturer as indicated by Product Change Notification documents dated January 2024. Verification of current availability requires checking authorized distributors for remaining stock or approved replacement alternatives. Ensure that any substitute components maintain compatibility with the original system specifications regarding pinout, voltage levels, and timing requirements before integration.

Selection Notes

Engineers should evaluate this component based on its 100 MHz synchronous performance and 5 ns access speed suitable for demanding real-time applications. The 165-CABGA package size and -40°C to +85°C temperature rating define the physical and environmental constraints for board design. Due to the discontinuation status, alternative sourcing strategies must be prioritized during the selection phase to ensure long-term supply chain stability.

Part Context

The 71V3558SA100BQGI belongs to the IDT 71V3558 family of synchronous ZBT SRAMs produced by Renesas Electronics. This series is characterized by high-speed operation and low power consumption compared to asynchronous counterparts. The device utilizes advanced CMOS technology to deliver reliable performance in various electronic systems requiring volatile memory storage with fast access times.

Replacement Considerations

The manufacturer issued a discontinuance notification for this device effective January 3, 2024. Designers should consult official documentation for qualified replacement part numbers within the same product family or compatible successors that meet the required electrical and mechanical specifications.