Nexperia USA Inc. 74LVC14ABQ,115

Overview

74LVC14ABQ,115 from Nexperia is a hex inverting Schmitt trigger IC with 5 V tolerant inputs, operating from 1.2 V to 3.6 V supply, delivering hysteresis-based noise immunity (VH = 0.3–1.2 V), propagation delay as low as 1.0 ns at 3.3 V, and ±24 mA output drive-used for signal conditioning in mixed-voltage industrial control interfaces.

For engineers reviewing the 74LVC14ABQ,115 datasheet, 74LVC14ABQ,115 pinout, 74LVC14ABQ,115 application, or 74LVC14ABQ,115 equivalent, this page delivers verified package mapping (DHVQFN14, SOT762-1), confirmed Schmitt-trigger transfer characteristics, real-world timing behavior across temperature, and validated alternatives for voltage translation and waveform shaping tasks.

Technical Context

This device implements six independent CMOS inverting Schmitt triggers with asymmetric input thresholds (VT+ = 0.4–2.0 V, VT− = 0.12–1.5 V depending on VCC) enabling robust edge detection in noisy environments. Each buffer features rail-to-rail output swing and supports unlimited input rise/fall times.

Its 5.5 V overvoltage-tolerant inputs allow direct interfacing between 3.3 V logic domains and legacy 5 V systems without level-shifting circuitry, while its thermal-enhanced DHVQFN14 package (2.5 × 3 × 0.85 mm) sustains continuous operation from −40 °C to +125 °C with 500 mW total power dissipation capability.

Key Specifications

Pinout & Package

DHVQFN14 package (SOT762-1): 2.5 mm × 3.0 mm × 0.85 mm body, 14-terminal leadless quad flat design with exposed thermal pad; pin 1 index area marked, GND pad not electrically required but may be floated or connected to ground.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar hex inverting Schmitt trigger applications.

Compared with SN74LVC14APWR, the 74LVC14ABQ,115 delivers 2× higher thermal power handling and superior heat spreading via its exposed pad-critical for sustained operation in sealed enclosures. Versus 74LVCH14A-Q100, it trades automotive qualification for broader commercial availability and faster lead times without sacrificing core Schmitt performance.

Availability

74LVC14ABQ,115 is available at Aetrix Electronics and suitable for industrial control interfaces, sensor signal conditioning, and programmable logic support requiring stable component supply across extended temperature ranges and mixed-voltage system integration.

Supply support for 74LVC14ABQ,115 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 focused on high-volume, high-reliability logic, discrete, and MOSFET solutions for industrial, consumer, and automotive markets.

The 74LVC14A series belongs to Nexperia's LVC (Low-Voltage CMOS) logic family, designed specifically for robust voltage translation and noise-immune signal conditioning in mixed-supply embedded systems.

FAQ

Can 74LVC14ABQ,115 safely interface with 5 V microcontroller GPIOs?

Yes-the device's inputs tolerate up to 5.5 V regardless of VCC (1.2–3.6 V), allowing direct connection to 5 V outputs without external resistors or clamps. This is explicitly guaranteed per JEDEC JESD8-C/JESD36 and verified in Table 4 (VI max = +6.5 V absolute rating) and Table 5 (VI max = 5.5 V recommended).

What is the function of the exposed thermal pad on the DHVQFN14 package?

The exposed pad (labeled GND(1) in Fig. 5) has no electrical requirement and may remain floating or be connected to GND. When soldered, it improves thermal conduction to the PCB but does not affect logic operation. Its thermal resistance (RθJA) is optimized for 9.6 mW/K derating above 98 °C, supporting continuous 500 mW dissipation.

Does 74LVC14ABQ,115 support true 1.2 V operation with full timing performance?

Yes-propagation delay is characterized down to 1.2 V (16 ns typical), and static parameters including VIH/VIL and VOH/VOL are fully specified across the entire 1.2–3.6 V range. Table 6 confirms VOL ≤ 0.8 V and VOH ≥ VCC − 0.3 V even at 1.2 V, ensuring interoperability with sub-1.8 V logic families.

How does the Schmitt trigger hysteresis behave across temperature and supply voltage?

VT+ and VT− are guaranteed across −40 °C to +125 °C and all VCC values (1.2–3.6 V). For example, at VCC = 3.6 V, VT+ = 1.2–2.0 V and VT− = 0.8–1.5 V, yielding VH = 0.3–1.2 V. This wide hysteresis window remains stable per Table 9 and Figure 10, ensuring consistent noise immunity in automotive and industrial environments.