Nexperia USA Inc. 74AHC3G14DC-Q100H

Overview

74AHC3G14DC-Q100 from Nexperia is a triple inverting Schmitt trigger IC qualified to AEC-Q100 Grade 1 for automotive use, operating from −40 °C to +125 °C with 2.0–5.5 V supply range, overvoltage-tolerant inputs up to 5.5 V, and CMOS-level input thresholds. It enables robust signal conditioning in noisy engine control and body electronics interfaces.

For engineers reviewing the 74AHC3G14DC-Q100 datasheet, 74AHC3G14DC-Q100 pinout, 74AHC3G14DC-Q100 application, or 74AHC3G14DC-Q100 equivalent, key selection criteria include Schmitt-trigger hysteresis (0.45–1.6 V), propagation delay (1.0–16.5 ns), VSSOP8 package footprint, and automotive-grade reliability under mixed-voltage signal translation.

Technical Context

This device integrates three independent inverting Schmitt triggers in a single VSSOP8 package, each featuring asymmetric input threshold voltages (VT+ = 3.15 V, VT− = 1.35 V at VCC = 4.5 V) and 1.8 V hysteresis, enabling noise-immune waveform shaping. Its overvoltage-tolerant inputs accept signals up to 5.5 V regardless of VCC level, supporting level-shifting between 3.3 V and 5 V domains.

The IC delivers symmetrical output drive (±8 mA at VCC = 4.5 V), low static current (≤40 μA at 125 °C), and dynamic power dissipation governed by CPD = 10 pF per buffer. It meets AEC-Q100 stress testing including HBM ESD ≥2000 V and latch-up immunity >100 mA.

Key Specifications

Pinout & Package

VSSOP8 plastic very thin shrink small outline package (SOT765-1); 8 leads; body width 2.3 mm; pin 1 indicator located below marking code in lower-left corner.

Key Features

Applications

Equivalent & Alternatives

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

Compared with 74AHC3G14DC-Q100, the 74AHCT3G14DC-Q100 offers TTL-level input compatibility at minor timing cost, while SN74LVC3G14DCUR reduces board space and cost but forfeits automotive reliability validation and extended temperature margin.

Availability

74AHC3G14DC-Q100 is available at Aetrix Electronics and suitable for engine control units, body control modules, and infotainment systems requiring stable component supply across automotive production lifecycles.

Supply support for 74AHC3G14DC-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 leading semiconductor manufacturer specializing in high-performance, high-reliability logic, analog, and discrete components for automotive, industrial, and consumer markets.

This device belongs to Nexperia's AEC-Q100-qualified 74AHC logic family, designed specifically for robust signal conditioning and level translation in harsh automotive environments.

FAQ

What is the maximum input voltage the 74AHC3G14DC-Q100 can tolerate?

The 74AHC3G14DC-Q100 accepts input voltages up to 5.5 V regardless of VCC level, enabling safe interfacing with 5 V sensors or legacy peripherals while operating from a 3.3 V supply. This overvoltage tolerance is specified in Table 5 (Limiting Values) and confirmed across all temperature ranges.

Does this IC require external pull-up or pull-down resistors on its inputs?

No external biasing resistors are required. The inputs are internally terminated and compatible with CMOS logic levels; they exhibit ≤0.1 μA leakage current (Table 7) and defined thresholds (VT+ = 3.15 V, VT− = 1.35 V at VCC = 4.5 V), ensuring reliable operation with floating-safe behavior only when driven.

Can the 74AHC3G14DC-Q100 be used in an astable multivibrator configuration?

Yes - the device is explicitly listed in Section 3 ("Applications") for astable multivibrator use. Its symmetrical propagation delays, rail-to-rail output swing, and stable hysteresis enable predictable oscillation frequencies when configured with external R-C networks, as shown in Figure 15 of the datasheet.

How does the hysteresis voltage change with supply voltage?

Hysteresis (VH) increases linearly with VCC: it is 1.35 V at 3.0 V, 1.4 V at 4.5 V, and 1.6 V at 5.5 V (Table 8). This scaling ensures consistent noise margin across the full 2.0–5.5 V operating range, maintaining robustness against interference regardless of rail voltage.