71V65703S75PFG

Overview

The 71V65703S75PFG is a synchronous Single Data Rate (SDR) Zero Bus Turnaround (ZBT) Static Random Access Memory (SRAM) manufactured by Renesas Electronics Corporation. It features a storage capacity of 9 Megabits, organized as 256K words by 36 bits. The device operates with a maximum clock frequency of 133 MHz and provides an access time of 7.5 nanoseconds. It utilizes a parallel interface and requires a supply voltage between 3.135V and 3.465V. The component is housed in a 100-pin Thin Quad Flat Package (TQFP) measuring 14x20 mm and supports an operating temperature range from -40°C to +85°C.

Feature Summary

• Zero Bus Turnaround (ZBT) technology eliminates dead bus cycles during read-to-write or write-to-read transitions.
• Internal registers for address, data-in, and control signals enable high-speed synchronous operation.
• Flow-through output architecture allows direct data availability without additional output registers.
• Supports burst mode operations providing four cycles of data for a single presented address.

Applications

• High-performance embedded systems requiring fast memory access
• Industrial network solutions and controllers
• Automotive electronic control units (ECUs)
• Telecommunications infrastructure equipment

Procurement Notes

Verify the exact suffix designation, as 'PFG' typically denotes a specific package variant within the 71V65703 family. Confirm RoHS compliance status and moisture sensitivity level (MSL) requirements against current project specifications. Ensure the selected variant matches the required pinout and thermal characteristics for the target PCB design.

Selection Notes

Select this component when system architecture demands low-latency memory with zero wait states during bus turnaround. Compare against asynchronous SRAMs for speed advantages and other synchronous SRAMs for organization compatibility. Verify that the 36-bit data width aligns with the processor or FPGA data bus requirements to avoid complex interfacing logic.

Part Context

This part belongs to the IDT/Renesas 71V65703 series of ZBT Synchronous SRAMs. The series is designed to replace asynchronous SRAMs in high-speed applications by eliminating wait states. The 71V65703 family offers various speed grades and package options to suit different performance and form factor constraints in industrial and automotive markets.

Replacement Considerations

Publicly confirmed substitute part numbers include 71V65703S80PFGI and 71V65703S85PFGI. These alternatives offer similar organizational structures but may differ in access times and package dimensions. Verify electrical compatibility and pin assignments before substitution.

FAQ

What is the primary advantage of ZBT technology in this SRAM?

ZBT technology eliminates dead bus cycles when turning the bus around between reads and writes, allowing for higher effective throughput compared to traditional synchronous SRAMs.

Does the 71V65703S75PFG have output data registers?

No, the outputs are flow-through, meaning there are no output data registers. Data is available immediately upon address presentation within the specified access time.