71V3578S133PFG

Overview

The IDT71V3578S133PFG is a high-speed Synchronous ZBT SRAM organized as 256K x 18. It operates at a maximum clock frequency of 133 MHz with a 4.2 ns access time. The device utilizes a 3.3V core power supply and features 3.3V I/O levels. It is housed in a 100-pin plastic thin quad flatpack (TQFP) package.

Feature Summary

• Supports high system speed with 4.2 ns clock access time
• Includes self-timed write cycle with global write control
• Offers burst counter capability for interleaved or linear modes
• Features individual byte write control

Applications

• High-performance cache memory systems
• Network infrastructure equipment
• Industrial automation controllers
• Telecommunications base stations

Procurement Notes

Verify the specific suffix 'PFG' against the manufacturer's current datasheet to confirm pinout and package dimensions match your PCB footprint requirements. Confirm RoHS compliance status for environmental regulations. Check for End-of-Life notices from Renesas Electronics, as IDT products are now managed under their portfolio.

Selection Notes

Select this component when a 256K x 18 organization is required for synchronous memory applications. Ensure the design supports 3.3V logic levels. Consider the 100-pin TQFP package constraints for board space. Verify that the 133 MHz operating speed meets the system timing requirements without exceeding the thermal limits of the chosen environment.

Part Context

This part belongs to the IDT 71V3578 family of Synchronous ZBT SRAMs. These devices are designed for high-throughput data processing where low latency is critical. The family typically includes variants with different access times and organizations, such as the 128K x 36 configuration found in the 71V3576 series.

Replacement Considerations

Check for direct substitutes like the 71V3578S166PFG for higher speed requirements. Verify compatibility with other 256K x 18 synchronous SRAMs from Renesas or IDT legacy lines. Ensure pin-to-pin compatibility before replacing.