Nexperia USA Inc. 74VHC14PW,118

Overview

74VHC14PW,118 from Nexperia is a hex inverting Schmitt trigger IC in TSSOP14 package, delivering six independent CMOS-compatible inverters with hysteresis for noise-immune signal conditioning. It operates from 2.0 V to 5.5 V, features 3.2 ns typical propagation delay at 5 V/15 pF, and supports industrial temperature range (−40 °C to +125 °C). Used in debouncing mechanical switches, waveform shaping, and relaxation oscillators.

For engineers reviewing the 74VHC14PW,118 datasheet, 74VHC14PW,118 pinout, 74VHC14PW,118 application, or 74VHC14PW,118 equivalent, this device serves as a high-speed, low-power Schmitt-trigger buffer for robust digital interface conditioning in mixed-signal embedded systems where input signal slew rate and EMI immunity are critical.

Technical Context

The 74VHC14PW,118 implements six independent inverting Schmitt-trigger stages using high-speed Si-gate CMOS technology, fully compliant with JEDEC Std. 7A and pin-compatible with LSTTL logic families. Each stage provides defined positive- and negative-going thresholds (e.g., VT+ = 3.15 V, VT− = 1.35 V at VCC = 4.5 V), yielding 1.8 V hysteresis for reliable noise rejection.

It exhibits balanced propagation delays (tpd ≤ 8.6 ns at VCC = 4.5–5.5 V, CL = 15 pF), low static current (ICC ≤ 40 μA at VCC = 5.5 V), and TTL-level input compatibility only in the VHCT variant - the 74VHC14PW uses CMOS input thresholds and is not TTL-input compatible.

Key Specifications

Pinout & Package

TSSOP14 (SOT402-1) package: plastic thin shrink small outline, 14-lead, body width 4.4 mm, 0.65 mm lead pitch, 1.2 mm max height - optimized for high-density PCB layouts and automated assembly.

Key Features

Applications

Equivalent & Alternatives

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

Compared with 74VHC14PW,118, the 74VHCT14PW,118 trades CMOS input flexibility for guaranteed TTL-level recognition, while the SN74LV14APW offers stronger drive and wider VCC tolerance at the cost of 30% longer propagation delay - selection depends on interface voltage source type and load capacitance.

Availability

74VHC14PW,118 is available at Aetrix Electronics and suitable for industrial control panels, automotive body electronics, medical instrumentation, and IoT edge sensor nodes requiring stable component supply across extended temperature ranges.

Supply support for 74VHC14PW,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 for automotive, industrial, and consumer markets.

The 74VHC14PW,118 belongs to Nexperia's high-speed CMOS logic family, engineered specifically for noise-immune signal conditioning in space-constrained, thermally demanding embedded systems.

FAQ

Can 74VHC14PW,118 operate reliably at 2.0 V supply?

Yes. The device is fully specified down to 2.0 V VCC, with guaranteed VIH/VIL thresholds, propagation delay (≤12.8 ns at CL = 15 pF), and output drive (≥4 mA) across −40 °C to +125 °C. Static current remains below 20 μA, making it suitable for ultra-low-power 2.0 V systems such as energy-harvesting sensors.

Is input overvoltage protection built-in?

Yes. All inputs tolerate up to 7.0 V regardless of VCC level, per Absolute Maximum Ratings (Table 4). This is achieved via internal clamp structures and allows safe interfacing with 5 V signals in 3.3 V systems without external protection diodes or resistors.

What is the maximum capacitive load for stable 10 MHz operation?

At VCC = 5 V and Tamb = 25 °C, CL ≤ 30 pF ensures tpd ≤ 10 ns and maintains clean edge integrity. With CL = 50 pF, tpd rises to 13.5 ns max at +125 °C - acceptable for 10 MHz clock edges (100 ns period), but marginally impacts setup/hold timing in synchronous interfaces.

Does it require external pull-up or pull-down resistors on unused inputs?

No. Unused inputs may be tied directly to VCC or GND. Floating inputs are not permitted due to CMOS gate sensitivity; however, internal input hysteresis does not eliminate risk of increased ICC or metastability - hard-wiring unused inputs is mandatory per datasheet recommendation (Section 8).