71V65903S85BGG

Overview

The 71V65903S85BGG is a synchronous Single Data Rate Zero Bus Turnaround (ZBT) Static Random Access Memory integrated circuit manufactured by Renesas Electronics Corporation. It provides a total storage capacity of 9 Megabits, organized as 512K words by 18 bits. The device features a parallel interface with an access time of 8.5 nanoseconds and operates within a supply voltage range of 3.135V to 3.465V. It is housed in a 119-pin Plastic Ball Grid Array package measuring 14x22 millimeters and supports commercial operating temperatures from 0°C to 70°C.

Feature Summary

• Zero Bus Turnaround architecture eliminates dead bus cycles during read-to-write or write-to-read transitions for improved throughput efficiency.
• On-chip registers capture address, data-in, and control signals to synchronize external inputs with the internal clock domain.
• Flow-through output configuration allows data to appear at the outputs without additional latency from an output register.

Applications

• High-speed digital signal processing systems requiring low-latency memory buffering
• Network infrastructure equipment utilizing parallel SRAM interfaces
• Industrial control systems needing reliable synchronous memory solutions

Procurement Notes

Verify component authenticity through authorized channels due to potential counterfeit risks. Confirm RoHS compliance status as specific manufacturing lots may vary. Check for End-of-Life notices or Product Change Notifications regarding packaging or material updates. Ensure thermal management meets surface mount requirements for the PBGA-119 footprint. Validate moisture sensitivity level handling procedures during assembly.

Selection Notes

Select this part when a 9Mb synchronous ZBT SRAM with 18-bit width is required. Compare against the 71V65703 variant if a 36-bit data width is needed instead of 18 bits. Ensure the system design accommodates the 119-PBGA package dimensions and pitch specifications. Verify that the 3.3V I/O logic levels match the host processor interface requirements.

Part Context

This component belongs to the 71V65903 family of synchronous ZBT SRAMs. It shares architectural similarities with other members like the 71V65703 but differs in organization and pinout compatibility. The series is designed for applications demanding high bandwidth and deterministic timing characteristics typical of embedded memory systems.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Consult manufacturer engineering support for current obsolescence management strategies or recommended next-generation alternatives.