Nexperia USA Inc. 74HCT1G14GV-Q100H

Overview

74HCT1G14GV-Q100 from Nexperia is a single-channel inverting Schmitt trigger logic gate qualified to AEC-Q100 Grade 1 for automotive use, operating from -40 °C to +125 °C with TTL-compatible input levels, 4.5 V–5.5 V supply range, and 17 ns typical propagation delay (CL = 50 pF). It enables robust signal conditioning in noisy engine control and body electronics interfaces.

For engineers reviewing the 74HCT1G14GV-Q100 datasheet, 74HCT1G14GV-Q100 pinout, 74HCT1G14GV-Q100 application, or 74HCT1G14GV-Q100 equivalent, key selection criteria include its hysteresis voltage (0.4–0.9 V), input threshold symmetry (VT+ ≈ 1.8 V / VT− ≈ 0.9 V at VCC = 4.5 V), output drive capability (±2.0 mA), and SC-74A (SOT753) 5-pin surface-mount package.

Technical Context

This device implements a single CMOS inverter with Schmitt-trigger input hysteresis to convert slow-rising or noisy analog-like signals into clean digital transitions. Its TTL-level input thresholds (VIH = 2.0 V min, VIL = 0.8 V max at VCC = 4.5 V) ensure compatibility with legacy 5 V logic families.

The internal structure includes input clamp diodes enabling safe interfacing to voltages exceeding VCC when used with current-limiting resistors, and symmetrical output impedance ensures matched rise/fall times (tPLH ≈ tPHL) under balanced capacitive loads.

Key Specifications

Pinout & Package

74HCT1G14GV-Q100 uses the SC-74A (SOT753) plastic surface-mounted package: 5-pin, 1.3 mm × 1.7 mm body, 0.65 mm pitch, 0.1 mm max height, with pin 1 indicator located below the marking code "T14".

Key Features

Applications

Equivalent & Alternatives

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

Compared with 74HC1G14GV-Q100, the 74HCT1G14GV-Q100 offers tighter TTL-level input compatibility critical for legacy 5 V automotive subsystems, while SN74LVC1G14DBVR trades automotive qualification for speed and 3.3 V efficiency-making the HCT variant the optimal choice for new AEC-Q100-compliant 5 V designs.

Availability

74HCT1G14GV-Q100 is available at Aetrix Electronics and suitable for automotive engine control units, body electronics modules, and infotainment system power management requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for 74HCT1G14GV-Q100 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, high-reliability logic, analog, and discrete components, with leadership in automotive-qualified standard products.

This device belongs to Nexperia's AEC-Q100-qualified 74HCT logic family, engineered specifically for robust signal integrity and thermal resilience in automotive control and sensing applications.

FAQ

What is the function of pin 1 (n.c.) on the 74HCT1G14GV-Q100?

Pin 1 is explicitly designated as "not connected" (n.c.) in the official Nexperia datasheet and must remain unconnected on the PCB. It has no internal bond wire or electrical function, and soldering or routing to this pin may compromise device reliability or cause unintended coupling. The marking code "T14" and pin-1 index are located adjacent to this terminal on the package bottom.

Can the 74HCT1G14GV-Q100 be used with a 3.3 V supply?

No - the 74HCT1G14GV-Q100 is specified only for 4.5 V to 5.5 V operation per its Recommended Operating Conditions table. At 3.3 V, input thresholds fall outside TTL specification (VIH minimum becomes undefined), output drive degrades significantly, and AEC-Q100 qualification is void. For 3.3 V systems, consider the 74LVC1G14 or 74AUP1G14 families instead.

How does the Schmitt trigger hysteresis improve performance in automotive environments?

The device's guaranteed 0.4–0.9 V hysteresis (VH) rejects noise spikes and slow edge slew rates common in vehicle harnesses - such as those induced by alternator ripple, solenoid switching, or RF interference. This prevents metastability and double-clocking in downstream logic, ensuring deterministic behavior in safety-critical functions like airbag deployment timing or brake-by-wire signal validation.

Is the 74HCT1G14GV-Q100 compatible with 74HC-series inputs?

Yes - the 74HCT1G14GV-Q100's CMOS output stage (VOH ≥ 4.13 V, VOL ≤ 0.33 V at VCC = 4.5 V) meets 74HC input voltage requirements (VIH ≥ 3.5 V, VIL ≤ 1.0 V), enabling direct connection to 74HC-series devices. However, its TTL-input thresholds mean it should not be driven by 74HC outputs without level translation if VIH margin is insufficient.