IDTQS3257S18

Overview

The Renesas Electronics Corporation IDTQS3257S18 is a high-speed CMOS QuickSwitch quad 2:1 multiplexer/demultiplexer. It operates on a single 5V supply within a voltage range of 4.75V to 5.25V. The device integrates four independent switching circuits, each providing two inputs and one output, resulting in an 8-bit bus width. It features a propagation delay of 0.25 ns and an on-resistance of 5Ω. The component supports surface mount installation in a 16-pin QSOP package with dimensions of 4.9 x 3.8 x 1.47 mm. It functions reliably across an industrial temperature range from -40°C to +85°C.

Feature Summary

• Integrates four independent 2:1 multiplexing channels for signal routing
• Provides low on-resistance for efficient signal transmission
• Supports hot-swapping and hot-docking operations
• Enables voltage translation between 5V and 3.3V logic levels

Applications

• Logic replacement in digital circuits
• Video, audio, and graphics switching systems
• Bus funneling applications
• Voltage translation interfaces

Procurement Notes

Verify the specific suffix 'S18' against official Renesas documentation to confirm package type and tape/reel specifications. Confirm RoHS compliance status and moisture sensitivity level (MSL) ratings prior to integration. Ensure design compatibility with the 16-pin QSOP footprint and check for any product change notices affecting assembly sites or material composition.

Selection Notes

Select this component when a compact solution for multiple 2:1 signal paths is required. The 0.25 ns propagation delay suits high-speed data routing tasks. Verify that the 5V operating voltage aligns with the system power rails. Consider the 16-pin QSOP package constraints for PCB layout and thermal management requirements during the design phase.

Part Context

This part belongs to the QS3257 series of high-speed CMOS switches manufactured by Renesas Electronics. The series is designed for applications requiring fast switching speeds and low distortion. The IDTQS3257 variant specifically denotes the QuickSwitch family characteristics, emphasizing performance in video and data switching environments while maintaining compatibility with standard logic families.

Replacement Considerations

The QS3257QG8 is listed as a manufacturer-recommended alternative. Verify pinout compatibility and electrical parameter equivalence before substitution.