Nexperia USA Inc. 74VHC14D,118

Overview

74VHC14D,118 from Nexperia is a hex inverting Schmitt trigger IC in SO14 package, delivering six independent CMOS-compatible inverters with hysteresis (VT+ = 3.15 V, VT− = 1.35 V at VCC = 4.5 V), propagation delay ≤8.6 ns (CL = 15 pF, VCC = 5 V), and operation across −40 °C to +125 °C - used for noise-immune signal conditioning in industrial sensor interfaces and microcontroller input debouncing.

For engineers reviewing the 74VHC14D,118 datasheet, 74VHC14D,118 pinout, 74VHC14D,118 application, or 74VHC14D,118 equivalent, this page delivers verified pin functions, real-world Schmitt-trigger performance metrics, temperature-stable threshold behavior, and direct substitution guidance for legacy TTL- or CMOS-level logic systems.

Technical Context

The 74VHC14D implements six independent inverting Schmitt-trigger buffers using high-speed Si-gate CMOS technology, compliant with JEDEC Std. 7A and pin-compatible with LSTTL. Each channel converts slow-rising/falling inputs into clean, jitter-free digital outputs via defined hysteresis (VH = 1.8 V typical at VCC = 4.5 V).

It operates over a 2.0–5.5 V supply range with CMOS input thresholds (VIH ≥ 0.7×VCC, VIL ≤ 0.3×VCC), supports input voltages up to 7.0 V independent of VCC, and features ESD protection exceeding 2000 V HBM and 1000 V CDM - enabling robust interfacing in noisy industrial environments.

Key Specifications

Pinout & Package

74VHC14D,118 is housed in a plastic small outline package (SO14, SOT108-1) with 14 leads, 3.9 mm body width, and 1.27 mm lead pitch - suitable for automated surface-mount assembly and reflow soldering per J-STD-020.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SN74LV14APWR, the 74VHC14D,118 offers tighter propagation delay control and superior noise margin at 2.0 V operation; versus MC74VHC14DT, it provides identical functionality with Nexperia's enhanced ESD robustness and extended temperature validation.

Availability

74VHC14D,118 is available at Aetrix Electronics and suitable for industrial sensor interfaces, microcontroller input conditioning, relaxation oscillator generation, and level-shifted clock distribution requiring stable component supply across extended temperature ranges.

Supply support for 74VHC14D,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, high-reliability logic, discrete, and MOSFET solutions for automotive, industrial, and consumer markets.

The 74VHC14D,118 belongs to Nexperia's VHC logic family, engineered for high-speed, low-power, noise-immune signal conditioning in harsh environments - targeting industrial automation, building controls, and power management systems.

FAQ

What is the maximum input voltage rating for 74VHC14D,118?

The absolute maximum input voltage is −0.5 V to +7.0 V, independent of VCC. This allows safe interfacing with 12 V sensors or legacy 5 V TTL outputs without external clamping, provided input current remains within ±20 mA limits per pin.

Can 74VHC14D,118 operate reliably at 2.0 V supply?

Yes - it is fully specified from 2.0 V to 5.5 V. At 2.0 V, VT+ is 1.9 V and VT− is 0.1 V (hysteresis = 1.8 V), ensuring robust noise rejection. Propagation delay increases to ≤12.8 ns (CL = 15 pF), remaining suitable for ≤10 MHz signal conditioning.

How does its Schmitt-trigger hysteresis compare to standard inverters?

Unlike standard inverters (no hysteresis), the 74VHC14D,118 provides ≥1.8 V hysteresis at 4.5 V - meaning input must cross VT+ (3.15 V) to switch high and fall below VT− (1.35 V) to switch low. This prevents oscillation on slow or noisy edges where standard gates would chatter.

Is thermal pad connection required for the SO14 package?

No - the SO14 (SOT108-1) package has no exposed thermal pad. It uses standard gull-wing leads; thermal dissipation relies on PCB copper area connected to pins 7 (GND) and 14 (VCC). No special pad layout or soldering is needed beyond IPC-7351B guidelines.