Nexperia USA Inc. 74LVC157ABQ-Q100X

Overview

74LVC157ABQ-Q100 from Nexperia is an automotive-grade quad 2-input multiplexer with active-low enable (E), common select input (S), and true-output logic. It operates from 1.2 V to 3.6 V supply, tolerates 5 V inputs, and functions across –40 °C to +125 °C. Used in mixed-voltage data routing, it selects between two input sources per channel for four independent outputs-e.g., in engine control unit (ECU) signal consolidation.

For engineers reviewing the 74LVC157ABQ-Q100 datasheet, 74LVC157ABQ-Q100 pinout, 74LVC157ABQ-Q100 application, or 74LVC157ABQ-Q100 equivalent, key selection criteria include its AEC-Q100 Grade 1 qualification, DHVQFN16 package with side-wettable flanks, 5 V tolerant inputs, propagation delay down to 1.0 ns at 3.3 V, and guaranteed output skew ≤1.5 ns.

Technical Context

This device implements four independent 2:1 multiplexers sharing one select (S) and one enable (E) control line. Each channel routes either nI0 or nI1 to nY based on S state when E is LOW; all outputs go LOW when E is HIGH. Its CMOS architecture enables direct TTL-level interfacing and supports mixed 3.3 V/5 V system translation without level shifters.

Functional operation follows a deterministic truth table: E=HIGH forces all outputs LOW regardless of S or inputs; E=LOW enables selection-S=LOW passes nI0, S=HIGH passes nI1. Input clamping current exceeds ±50 mA, and static VIH/VIL thresholds scale with VCC per JEDEC standards JESD8-7A, JESD8-5A, and JESD8-C/JESD36.

Key Specifications

Pinout & Package

DHVQFN16 package (SOT763-1): 2.5 × 3.5 × 0.85 mm body, no leads, side-wettable flanks for AOI-compatible solder joint inspection. Thermal-enhanced construction supports sustained operation in high-ambient environments.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar quad 2-input multiplexer applications.

Compared with SN74LVC157APWRE4 and 74LVC157AD-Q100, the 74LVC157ABQ-Q100 uniquely combines automotive qualification, miniaturized DHVQFN packaging with AOI support, and optimal thermal resistance-making it the only choice for space-constrained, safety-critical automotive modules requiring production-grade inspection.

Availability

74LVC157ABQ-Q100 is available at Aetrix Electronics and suitable for engine control units, ADAS camera interfaces, infotainment audio routing, and body control module I/O expansion requiring stable component supply across automotive production lifecycles.

Supply support for 74LVC157ABQ-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 logic, analog, and MOSFET solutions, with core expertise in automotive-qualified components and energy-efficient logic families.

The 74LVC series targets low-voltage, high-speed digital applications in automotive and industrial systems, emphasizing AEC-Q100 compliance, wide supply range, and robust mixed-signal interoperability.

FAQ

What is the maximum input voltage the 74LVC157ABQ-Q100 can tolerate?

The device accepts input voltages up to 5.5 V regardless of VCC level, enabling direct interface with 5 V logic families while operating from as low as 1.2 V. This 5 V tolerance is guaranteed per datasheet Table 4 and eliminates external level-shifting components in mixed-voltage designs.

Does the 74LVC157ABQ-Q100 require external pull-up or pull-down resistors on S or E pins?

No external biasing is required: internal input structures meet VIH/VIL thresholds across the full VCC range (1.2–3.6 V), and the enable (E) pin has no internal pull-up. System-level control logic must actively drive S and E to defined HIGH/LOW states per functional table in Section 6.

How does the DHVQFN16 package improve thermal performance over SO16 or TSSOP16 variants?

The DHVQFN16 (SOT763-1) features an exposed thermal pad and thinner profile (0.85 mm), achieving lower junction-to-board thermal resistance. Its thermal derating slope is 11.2 mW/K above 106 °C-superior to SO16's 12.4 mW/K above 110 °C-enabling higher sustained power density in compact automotive modules.

Can the 74LVC157ABQ-Q100 be used as a logic function generator?

Yes: by fixing one input variable and applying the other to S, it generates any four of the sixteen possible 2-variable Boolean functions. The datasheet explicitly cites this capability in Section 1, enabling compact implementation of irregular combinational logic without programmable logic devices.