Nexperia USA Inc. 74LVC14AD,118

Overview

74LVC14AD,118 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 rated for -40 °C to +125 °C operation in SO14 (SOT108-1) package. It enables level translation between 3.3 V and 5 V logic domains in industrial control interfaces.

For engineers reviewing the 74LVC14AD,118 datasheet, 74LVC14AD,118 pinout, 74LVC14AD,118 application, or 74LVC14AD,118 equivalent, key selection criteria include input hysteresis voltage (VT+ / VT−), 5 V overvoltage tolerance on all inputs, guaranteed operation down to 1.2 V supply, SO14 thermal performance (500 mW Ptot), and Schmitt-trigger waveform shaping capability for noisy sensor signal conditioning.

Technical Context

The 74LVC14AD,118 implements six independent CMOS inverting Schmitt triggers, each with asymmetric threshold switching (VT+ = 0.4–2.0 V, VT− = 0.12–1.5 V depending on VCC) and 0.3–1.2 V hysteresis. Its input structure accepts up to 5.5 V regardless of VCC, enabling direct interfacing with legacy 5 V TTL outputs while powered from 1.65–3.6 V supplies.

It operates across two temperature grades: -40 °C to +125 °C (as specified for this SO14 variant), with static current consumption below 40 μA at 3.6 V and dynamic power governed by CPD = 15.6 pF at 3.0–3.6 V. Propagation delay is characterized from 1.0 ns (min) to 8.0 ns (max) across full VCC and temperature range.

Key Specifications

Pinout & Package

74LVC14AD,118 is supplied in SO14 (SOT108-1) plastic small outline package: 14-pin, 3.9 mm body width, 1.27 mm lead pitch, 8.75 mm × 3.9 mm footprint, with gull-wing leads and moisture sensitivity level (MSL) 1.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SN74LVC14APWR and 74LVC14ABQ,115, the 74LVC14AD,118 offers highest power dissipation headroom (500 mW) and simplest assembly in standard SO14 footprint-ideal for cost-sensitive industrial controls where thermal margins exceed 100 °C.

Availability

74LVC14AD,118 is available at Aetrix Electronics and suitable for industrial automation interfaces, motor control logic, and sensor signal conditioning requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for 74LVC14AD,118 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 essential efficiency technologies, delivering high-performance logic, discrete, and MOSFET solutions optimized for reliability and manufacturability.

The 74LVC14A series belongs to Nexperia's advanced LVC logic family, designed specifically for low-voltage, high-noise-immunity digital interfacing in industrial, automotive (non-safety), and consumer applications requiring robust Schmitt-trigger behavior.

FAQ

Can 74LVC14AD,118 operate with a 1.2 V supply and still accept 5 V inputs?

Yes. The device is explicitly characterized for 1.2 V to 3.6 V VCC operation while maintaining 5.5 V absolute maximum input voltage rating. Input clamping diodes and oxide-thickness design ensure safe overvoltage tolerance regardless of supply level-no external resistors or protection needed.

What is the minimum recommended bypass capacitance for VCC on 74LVC14AD,118?

A minimum 100 nF X7R ceramic capacitor placed within 10 mm of pin 14 (VCC) and pin 7 (GND) is required. For boards with high-speed switching or shared supply rails, add a 10 nF capacitor in parallel to suppress high-frequency noise above 100 MHz.

Does the SO14 package (SOT108-1) require thermal pad connection to ground?

No. The SO14 package has no thermal pad. Unlike QFN variants, it relies on lead-frame conduction. Ensure adequate copper pour on both top and bottom layers connected to pins 7 (GND) and 14 (VCC) to manage thermal resistance and reduce junction temperature rise during sustained 24 mA output loading.

How does hysteresis vary with supply voltage in 74LVC14AD,118?

Hysteresis (VH = VT+ − VT−) scales with VCC: at 1.2 V supply, VH = 0.1–1.0 V; at 3.6 V, VH = 0.3–1.2 V. This ensures consistent noise margin percentage (~25–40% of VCC) across the full operating range, critical for reliable operation in variable-voltage battery systems.