74CBTLV3257GUX

Signal Switches, Multiplexers, Decoders Overview

The Nexperia 74CBTLV3257GUX is a quad 1-of-2 multiplexer/demultiplexer housed in an XQFN16 package (SOT1161-1). It operates on a single supply voltage ranging from 2.3 V to 3.6 V and supports an ambient temperature range of -40 °C to +125 °C. The device features Schmitt trigger inputs for noise immunity and IOFF circuitry for partial power-down applications. Key electrical parameters include a maximum propagation delay of 5.8 ns at 3.6 V, a typical ON resistance of 5 Ω, and ESD protection exceeding 2000 V (HBM) and 1000 V (CDM).

Signal Switches, Multiplexers, Decoders Feature Summary

• Quad 1-of-2 high-speed multiplexer/demultiplexer with common select and output enable inputs.
• Low ON resistance switch connection between ports without adding propagation delay or ground bounce noise.
• IOFF circuitry disables outputs during power-down to prevent damaging backflow current.
• Schmitt trigger action at control inputs ensures tolerance to slower input rise and fall times.

Signal Switches, Multiplexers, Decoders Applications

• Partial power-down mode operation in portable electronics.
• Signal routing in mixed-signal systems requiring rail-to-rail switching.
• High-speed data bus switching applications.

Signal Switches, Multiplexers, Decoders Procurement Notes

Verify the specific ordering suffix 'GUX' against official Nexperia documentation to confirm the XQFN16 package configuration and tape-and-reel packaging details. Ensure that design-in requirements match the specified thermal dissipation limits for the SOT1161-1 package variant under intended operating conditions.

Signal Switches, Multiplexers, Decoders Selection Notes

Select this component when a compact surface-mount solution is required for signal multiplexing within the 2.3 V to 3.6 V supply range. The XQFN16 package offers space-saving benefits for dense PCB layouts. Consider the 5.8 ns maximum propagation delay and 5 Ω ON resistance for high-speed signal integrity requirements.

Signal Switches, Multiplexers, Decoders Part Context

This part belongs to the 74CBTLV logic family, designed for low-voltage, high-speed applications. It shares functional compatibility with other variants in the 74CBTLV3257 series, such as those in SO16, SSOP16, TSSOP16, and DHVQFN16 packages, differing primarily in physical footprint and thermal characteristics.

Signal Switches, Multiplexers, Decoders Replacement Considerations

Direct pin-compatible substitutes include the 74CBTLV3257BQ (DHVQFN16) and 74CBTLV3257PW (TSSOP16), provided the mechanical footprint constraints are addressed. Verify that alternative packages meet the same thermal and electrical specifications for the target application.

Signal Switches, Multiplexers, Decoders FAQ

How does the IOFF circuitry function in this device?

The IOFF circuitry disables the outputs when the device is powered down, preventing damaging backflow current through the device by ensuring a high-impedance state regardless of input signals.

What is the purpose of the Schmitt trigger inputs?

The Schmitt trigger action at the control inputs makes the circuit tolerant to slower input rise and fall times across the entire supply voltage range from 2.3 V to 3.6 V.