Nexperia USA Inc. 74VHC14BQ,115

Overview

74VHC14BQ,115 from Nexperia is a hex inverting Schmitt trigger IC in DHVQFN14 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 clock conditioning, debouncing, and relaxation oscillators in industrial control and sensor interface circuits.

For engineers reviewing the 74VHC14BQ,115 datasheet, 74VHC14BQ,115 pinout, 74VHC14BQ,115 application, or 74VHC14BQ,115 equivalent, this device is selected for robust input threshold stability, low ICC (≤40 μA), TTL-level compatibility variants (74VHCT14BQ), and thermal-enhanced QFN packaging enabling high-density PCB layouts.

Technical Context

The 74VHC14BQ implements six independent Schmitt-trigger inverters using high-speed Si-gate CMOS technology, compliant with JEDEC 7A. Each channel provides defined positive-going (VT+) and negative-going (VT−) thresholds-e.g., VT+ = 3.85 V and VT− = 1.65 V at VCC = 5.5 V-yielding 2.2 V hysteresis for reliable noise rejection on slow-rising inputs.

It accepts input voltages up to 7.0 V regardless of VCC, supports rail-to-rail output swing, and maintains balanced tPLH/tPHL propagation delays. The DHVQFN14 package (SOT762-1) integrates an exposed thermal pad (non-electrical unless connected to GND) and enables 9.6 mW/K power derating above 98 °C.

Key Specifications

Pinout & Package

DHVQFN14 (SOT762-1) package: 2.5 × 3.0 × 0.85 mm body, no leads, 14 terminals, thermal-enhanced construction with exposed die pad (non-functional unless soldered to GND plane).

Key Features

Applications

Equivalent & Alternatives

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

Compared with 74VHC14BQ,115, the 74VHCT14BQ,115 offers guaranteed TTL-level recognition at 5 V while retaining identical thermal performance, whereas SN74LV14APWR trades industrial temperature support for broader low-voltage compatibility-making the original part optimal for 3.3 V/5 V mixed-signal designs demanding −40 °C to +125 °C reliability.

Availability

74VHC14BQ,115 is available at Aetrix Electronics and suitable for industrial control panels, sensor signal conditioning modules, and embedded timing subsystems requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for 74VHC14BQ,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 specializing in high-performance, energy-efficient logic, discrete, and MOSFET solutions, headquartered in Nijmegen, Netherlands.

The 74VHC/VHCT series targets robust, pin-compatible replacements for legacy TTL logic in industrial, automotive, and computing applications-designed specifically for noise immunity, wide supply range, and thermal resilience in space-constrained layouts.

FAQ

Can 74VHC14BQ,115 operate reliably at 2.0 V supply?

Yes. The device is fully specified down to 2.0 V VCC, with guaranteed VOH ≥ 1.9 V and VOL ≤ 0.36 V at −40 °C to +125 °C, supporting interoperability with 2.5 V and 3.3 V logic families. Propagation delay increases to 12.8 ns (max) at 2.0 V/15 pF, which remains acceptable for sub-10 MHz signal conditioning tasks.

Is the exposed pad on the DHVQFN14 package electrically connected?

No. The thermal pad (labeled "GND(1)" in the datasheet) has no internal electrical connection. It may be left floating or soldered to a PCB ground plane for improved thermal dissipation, but must not be tied to any active signal net. Doing so risks latch-up or parametric shift.

What is the maximum input frequency supported for clean square-wave output?

The device does not specify a maximum input frequency, but its 3.2 ns typical propagation delay and 11.0 ns maximum tpd (at 5 V/50 pF) imply reliable operation up to ~45 MHz for repetitive square-wave inputs. For slower, noisy inputs (e.g., <100 kHz switch bounce), Schmitt action ensures distortion-free output regardless of edge rate.

How does 74VHC14BQ,115 differ from standard 74HC14 in terms of ESD robustness?

74VHC14BQ,115 exceeds HBM ESD rating of standard 74HC14 by 500 V (2000 V vs. typical 1500 V), meeting ANSI/ESDA/JEDEC JS-001 Class 2. Its CDM rating also exceeds 1000 V (Class C3), providing superior protection during automated PCB assembly and field handling in uncontrolled ESD environments.