71T75902S85BGG

Overview

The IDT 71T75902S85BGG is a synchronous Single Data Rate Zero Bus Turnaround (ZBT) SRAM with an 18 Mbit capacity organized as 1M x 18. It operates on a 2.5V core voltage and features an 8.5 ns maximum access time with a 90 MHz clock frequency. The device utilizes a parallel interface and is housed in a 119-ball PBGA package measuring 14x22 mm. It supports flow-through architecture for high-speed data processing.

Feature Summary

• Zero Bus Turnaround (ZBT) technology eliminates dead cycles between read and write operations to maintain bus throughput.
• Flow-through architecture allows data to be available at the output immediately upon address selection without pipeline latency.
• Single Read/Write control pin simplifies interface logic by removing the need for separate command signals.

Applications

• High-performance networking equipment requiring low-latency buffering
• Telecommunications systems utilizing synchronous memory interfaces
• Industrial automation controllers needing fast data acquisition

Procurement Notes

Verify component authenticity through authorized Renesas or IDT distributors, as this part may be subject to discontinuation notices. Confirm RoHS compliance status and lead times directly with suppliers, as availability varies. Ensure the specific suffix matches the required packaging format for your assembly line.

Selection Notes

Select this component when system design requires synchronous SRAM with ZBT capabilities to maximize bandwidth efficiency. The 1M x 18 organization suits applications needing wide data paths. Verify that the 2.5V core voltage aligns with the target platform's power supply rails and thermal constraints.

Part Context

This part belongs to the IDT 71T75902 series of synchronous ZBT SRAMs. Manufactured originally by Integrated Device Technology, now part of Renesas Electronics, these devices are designed for high-speed embedded memory applications. The series offers various speed grades and package options to fit diverse system requirements.

Replacement Considerations

Check for official replacement part numbers from Renesas Electronics if this item is discontinued. Cross-reference specifications such as access time, organization, and package dimensions to ensure functional compatibility with existing designs.

FAQ

What is the difference between ZBT and standard synchronous SRAM?

ZBT SRAM eliminates the dead cycle typically required between read and write operations, allowing continuous data transfer without bus turnaround delays.

Does the 71T75902S85BGG support pipelined burst modes?

No, this specific model utilizes a flow-through architecture rather than a pipelined structure, providing immediate data availability upon address selection.