Nexperia USA Inc. 74CBTLV3257D-Q100J

Overview

74CBTLV3257D-Q100 from Nexperia is an automotive-grade quad 1-of-2 high-speed analog multiplexer/demultiplexer in SO16 package, featuring 5 Ω typical ON-resistance, 0.15 ns propagation delay, and operation across 2.3 V–3.6 V supply with AEC-Q100 Grade 1 qualification (−40 °C to +125 °C). It enables bidirectional signal routing in automotive infotainment data buses and ADAS sensor interface switching.

For engineers reviewing the 74CBTLV3257D-Q100 datasheet, 74CBTLV3257D-Q100 pinout, 74CBTLV3257D-Q100 application, or 74CBTLV3257D-Q100 equivalent, key selection criteria include rail-to-rail analog switching capability, IOFF-enabled partial power-down protection, Schmitt-trigger control inputs for noise immunity, and verified performance under automotive temperature and voltage stress conditions.

Technical Context

This device implements four independent single-pole double-throw (SPDT) CMOS analog switches, each controlled by a shared select (S) input and global output enable (OE) input. All switches exhibit symmetrical bidirectional conduction with no intrinsic directionality-data paths operate identically between A/B1/B2 terminals regardless of signal flow direction.

Its IOFF circuitry actively disables all switch paths when VCC = 0 V, blocking backflow current up to ±50 μA, while Schmitt-trigger inputs on S and OE ensure clean logic transitions even with slow-rising signals across the full 2.3 V–3.6 V VCC range. The design supports hot insertion and mixed-voltage domain interfacing without latch-up risk (exceeds 250 mA per JESD78B Class I).

Key Specifications

Pinout & Package

74CBTLV3257D-Q100 uses SO16 (SOT109-1) plastic small outline package: 16-pin, 3.9 mm body width, 1.27 mm lead pitch, gull-wing leads. Pin 1 index located at lower-left corner below marking code "74CBTLV3257D".

Key Features

Applications

Equivalent & Alternatives

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

Compared with TS3USB30E-Q1 and 74LVC1G3157GW-Q100, the 74CBTLV3257D-Q100 uniquely delivers quad-channel integration, full automotive temperature range, and proven IOFF robustness in one SO16 package-reducing component count, test points, and failure modes in safety-critical signal routing.

Availability

74CBTLV3257D-Q100 is available at Aetrix Electronics and suitable for automotive infotainment systems, ADAS sensor fusion modules, and electric powertrain control units requiring stable component supply across extended temperature and voltage ranges.

Supply support for 74CBTLV3257D-Q100 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 leading semiconductor manufacturer specializing in high-performance, reliable standard logic, analog, and MOSFET solutions for automotive, industrial, and consumer markets.

The 74CBTLV3257-Q100 belongs to Nexperia's automotive-qualified CBTLV logic family, engineered specifically for high-speed, low-distortion analog signal routing in harsh automotive environments where power sequencing, ESD, and thermal stability are critical.

FAQ

What is the maximum signal frequency supported by the 74CBTLV3257D-Q100 in ON-state?

The device supports up to 398 MHz (−3 dB point) at VCC = 3.3 V with 50 Ω load, verified per Figure 14 test circuit. This bandwidth accommodates high-speed serial interfaces including USB 2.0 (480 Mbps), FPD-Link III (3.12 Gbps), and MIPI D-PHY (1.5 Gbps) auxiliary channels without measurable attenuation or phase shift.

How should OE be handled during power-up to ensure safe default state?

OE must be tied to VCC via a pull-up resistor to guarantee high-impedance OFF-state at power-on. Resistor value depends on driver sink capability: for typical 100 μA sink current, a 33 kΩ resistor ensures OE ≥2.0 V (VIH min) while limiting current to <100 μA. Do not leave OE floating.

Does the 74CBTLV3257D-Q100 support bidirectional signal flow on all channels?

Yes-each of the four channels operates bidirectionally between A and B1/B2 ports with identical RON, capacitance, and leakage characteristics in both directions. No internal diodes or directional biasing exist; signal polarity and DC level are preserved regardless of flow direction.

Can this device be used with 1.8 V logic control signals?

No-control inputs S and OE require VIH ≥2.0 V (at VCC ≥2.7 V) or ≥1.7 V (at VCC ≥2.3 V) per Table 7. Direct 1.8 V logic will not reliably assert HIGH; a level shifter or compatible 2.5 V/3.3 V controller is required for guaranteed operation.