71T75902S85BG8

Overview

The Renesas 71T75902S85BG8 is a 18 Mbit Synchronous Single Data Rate (SDR) Zero Bus Turnaround (ZBT) Static Random Access Memory (SRAM). It features a memory organization of 1 Megabit by 18 bits, providing high-density storage with error correction capabilities. The device supports a maximum clock frequency of 100 MHz and offers an access time of 8.5 ns. It operates within a voltage range of 2.375 V to 2.625 V, with a maximum power supply current of 225 mA. Designed for surface mount applications, it is housed in a 119-pin Plastic Ball Grid Array (PBGA) package measuring 14x22 mm. The component functions reliably across an operating temperature range of 0°C to +70°C.

Feature Summary

• Supports Zero Bus Turnaround (ZBT) technology for efficient data transfer without bus turnaround cycles.
• Integrates Single Data Rate (SDR) architecture for synchronous parallel interface operations.
• Includes built-in Error Correction Code (ECC) logic for enhanced data integrity.
• Features low-voltage core operation compatible with standard 2.5V power supplies.

Applications

• High-performance networking equipment requiring fast packet buffering
• Industrial control systems needing reliable volatile memory
• Telecommunications infrastructure utilizing synchronous SRAM interfaces

Procurement Notes

Verify component authenticity through authorized distributors due to potential obsolescence status. Confirm moisture sensitivity level handling requirements during assembly. Check for specific RoHS compliance documentation as regulatory standards vary by region. Ensure the 119-PBGA footprint matches the target PCB design constraints before finalizing procurement decisions.

Selection Notes

Select this part when a 1M x 18 configuration with ECC support is required. Compare access times against system timing budgets to ensure 8.5 ns meets performance needs. Evaluate the PBGA-119 package suitability for automated surface mount assembly processes. Consider thermal dissipation characteristics given the 225 mA maximum current draw at peak operation.

Part Context

This component belongs to the Renesas 71T75902 series of ZBT SRAM devices. It shares architectural similarities with other members like the 71T75902S80PF8 but differs in package type and pinout. The series is designed for applications demanding high-speed data processing with robust error checking capabilities in a compact form factor.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material. Verify compatibility with existing designs if considering alternative vendors or newer generations from the manufacturer.