Nexperia USA Inc. 74CBTLV3257BQ-Q10X

Overview

74CBTLV3257BQ-Q10X from Nexperia is an automotive-grade quad 1-of-2 CMOS bus switch multiplexer/demultiplexer in DHVQFN16 package, operating from 2.3 V to 3.6 V, featuring 5 Ω typical ON-resistance, <0.25 ns propagation delay, and IOFF partial power-down protection. It routes high-speed digital signals in automotive infotainment and ADAS sensor interface subsystems where rail-to-rail switching and low ground bounce are critical.

For engineers reviewing the 74CBTLV3257BQ-Q10X datasheet, 74CBTLV3257BQ-Q10X pinout, 74CBTLV3257BQ-Q10X application, or 74CBTLV3257BQ-Q10X equivalent, this page delivers verified functional behavior, AEC-Q100 Grade 1 qualification status, DHVQFN16 terminal mapping, and direct substitution guidance for automotive signal routing designs requiring low-latency, bidirectional analog/digital switching.

Technical Context

This device implements four independent single-pole double-throw (SPDT) analog switches controlled by a shared select (S) and active-low output enable (OE) input. Each switch exhibits rail-to-rail voltage handling on all I/O ports and Schmitt-triggered control inputs for robust noise immunity across the full 2.3 V–3.6 V supply range.

The IOFF circuit ensures zero backflow current during partial power-down, while the 5 Ω ON-resistance and 14.3 pF ON-state capacitance support high-fidelity signal integrity up to 398 MHz (-3 dB bandwidth at 3.3 V). All channels operate simultaneously with identical timing characteristics and thermal derating per SOT763-1 package specification.

Key Specifications

Pinout & Package

DHVQFN16 (SOT763-1) package: 2.5 mm × 3.5 mm × 0.85 mm body, side-wettable flanks for AOI-compatible solder joint inspection, no leads, thermally enhanced pad (terminal 1 index area), 16 terminals.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar quad 1-of-2 bus switch applications.

Compared with the 74CBTLV3257PW-Q100 and 74CBTLV3257D-Q100, the 74CBTLV3257BQ-Q10X delivers superior thermal dissipation, AOI-ready solder joints, and smallest PCB footprint - making it optimal for next-generation compact ADAS modules requiring high-reliability automated assembly.

Availability

74CBTLV3257BQ-Q10X is available at Aetrix Electronics and suitable for automotive camera interfaces, ADAS sensor multiplexing, infotainment display switching, and body control module I/O expansion requiring stable component supply across extended temperature ranges and AEC-Q100 compliance.

Supply support for 74CBTLV3257BQ-Q10X includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Nexperia is a global semiconductor expert delivering high-performance, reliable, and efficient logic, discrete, and MOSFET solutions optimized for automotive, industrial, and consumer applications.

The 74CBTLV3257 series belongs to Nexperia's automotive-qualified analog switch product line, designed specifically for high-speed, low-distortion signal routing in safety-critical vehicle subsystems including ADAS, powertrain, and body electronics.

FAQ

What is the maximum allowable signal voltage swing when using 74CBTLV3257BQ-Q10X?

The device supports rail-to-rail switching: signals may swing from 0 V to VCC (2.3 V–3.6 V) on all A and B ports. Exceeding VCC or going below GND violates absolute maximum ratings and risks latch-up or permanent damage. The switch voltage rating is specified as -0.5 V to VCC + 0.5 V under clamping conditions, but normal operation must remain within 0 V to VCC.

How does the IOFF feature behave during system power sequencing?

When VCC drops to 0 V, the IOFF circuit automatically disables all switch paths, limiting back-current to ±50 μA maximum. This allows safe connection of powered downstream circuits (e.g., active sensors) to unpowered upstream domains (e.g., sleeping MCU), preventing reverse current flow that could disrupt power rails or damage ICs.

Can 74CBTLV3257BQ-Q10X be used for analog audio signal routing?

Yes - its 5 Ω ON-resistance, 14.3 pF ON-capacitance, and 398 MHz bandwidth support high-fidelity analog audio up to 20 kHz with negligible insertion loss (<0.05 dB) and THD < -100 dB. However, DC coupling requires matching source/load impedances to avoid offset shifts; AC coupling with series capacitors is recommended for line-level signals.

Is pull-up resistance required on the OE pin, and what value should be used?

Yes - to ensure high-impedance OFF-state during power-up/down, OE must be pulled to VCC. The minimum resistor value depends on the current-sinking capability of the driving source. For standard CMOS drivers, 10 kΩ is typical; for weak-sink sources, values down to 4.7 kΩ may be needed. Do not exceed 100 kΩ to maintain noise immunity and fast disable timing.