SN74CBT3253PWRG4

Overview

The SN74CBT3253PWRG4 is a dual 1-of-4 FET multiplexer/demultiplexer switch IC manufactured by Texas Instruments. It operates on a single power supply ranging from 4 V to 5.5 V, with a typical operating voltage of 5 V. The device features two independent channels, each configured as a 2 x 1:4 switch. Key electrical specifications include a maximum on-resistance of 12 Ohms, a bandwidth of 200 MHz, and propagation delays with a maximum run time of 6.7 ns and a maximum idle time of 6.1 ns. It functions within an industrial temperature range of -40°C to +85°C and draws a maximum supply current of 3 uA.

Feature Summary

• Dual-channel architecture providing two independent 1-of-4 switching paths for signal routing applications.
• Low on-resistance characteristic ensures minimal signal attenuation across the selected path.
• High-speed switching capability supports data rates requiring significant bandwidth performance.
• Compatible with standard logic families through defined voltage thresholds and low static current consumption.

Applications

• Portable equipment requiring efficient signal routing in space-constrained designs
• Consumer electronics utilizing high-density signal management
• Industrial control systems needing reliable analog or digital signal switching

Procurement Notes

Verify the specific package variant and tape-and-reel configuration against the official datasheet before procurement. Confirm that the ordering suffix matches the required moisture sensitivity level and packaging quantity. Ensure the component meets RoHS compliance standards relevant to your manufacturing region. Cross-reference the manufacturer part number with authorized distributor catalogs to validate authenticity and availability status.

Selection Notes

Select this component when a dual-channel multiplexer solution is required for 5 V logic systems. Consider the 12 Ohm on-resistance limit for signal integrity requirements. Evaluate the 200 MHz bandwidth against the highest frequency signals in the application. Compare the VQFN-16 package dimensions against available PCB real estate constraints relative to alternative packages like SSOP or TSSOP.

Part Context

This device belongs to the SN74CBT3253C series of multiplexer switches. It is part of Texas Instruments' broader portfolio of high-speed analog switches designed for portable and consumer applications. The family typically offers low on-resistance and fast switching speeds suitable for both digital and analog signal routing tasks in compact form factors.

Replacement Considerations

The SN74CBT3253DBR is a documented substitute offering identical 2 x 1:4 functionality in a 16-SSOP package. Verify pin compatibility and thermal characteristics when transitioning between the VQFN and SSOP footprints.