71T75902S85BG

Overview

The IDT 71T75902S85BG is a synchronous ZBT SRAM IC with an 18Mb capacity organized as 1M x 18. It features an 8.5 ns access time and operates on a 2.5V core voltage within a 2.375V to 2.625V supply range. The device utilizes a parallel interface and is housed in a 119-pin PBGA package measuring 14x22 mm. It supports a maximum clock frequency of 90 MHz and functions within a commercial temperature range of 0°C to 70°C.

Feature Summary

• Flow-through architecture for direct data path operations
• Single R/W control pin simplifies interface logic
• Internally synchronized output buffer enable eliminates external OE control

Applications

• High-performance embedded systems requiring fast memory access
• Network infrastructure equipment
• Industrial automation controllers

Procurement Notes

Verify the exact suffix configuration, as the provided model lacks the final character found in standard listings like BG8 or BGG. Confirm RoHS compliance status, as specific variants may be leaded. Check current availability, as this component series has faced discontinuation notices from Renesas Electronics. Ensure the supplier provides official datasheets matching the specific package dimensions and pinout.

Selection Notes

Select this part when a 1M x 18 organization is required with 8.5 ns speed. Compare against the 71T75902S85BGG variant if RoHS compliance is mandatory. Consider the 71T75702S85BG8 if a 512K x 36 organization fits the design. Verify that the 119-pin BGA footprint matches the PCB layout constraints.

Part Context

This component belongs to the IDT 71T75902S85 family of synchronous ZBT SRAMs. These devices are designed to eliminate dead bus cycles between read and write operations. The family includes various access times and organizations, all sharing similar pipelined output architectures and low-power characteristics suitable for high-speed digital applications.

Replacement Considerations

Official substitutes include the 71T75902S85BGG and 71T75902S85BG8. Verify package compatibility and electrical specifications before substitution.