Nexperia USA Inc. 74AHC3G14DC,125

Overview

74AHC3G14DC,125 from Nexperia is a triple inverting Schmitt trigger IC with overvoltage-tolerant inputs (up to 5.5 V), CMOS-level input compatibility, and operation across 2.0 V–5.5 V supply. It delivers symmetrical output impedance, balanced propagation delays (as low as 3.2 ns at VCC = 5.0 V, CL = 15 pF), and hysteresis of 0.45–1.6 V-enabling robust noise immunity in signal conditioning for industrial sensor interfaces and power-on reset circuits.

For engineers reviewing the 74AHC3G14DC,125 datasheet, 74AHC3G14DC,125 pinout, 74AHC3G14DC,125 application, or 74AHC3G14DC,125 equivalent, this device serves as a precision waveform shaper and threshold translator in mixed-voltage digital systems where input rise/fall time variability demands deterministic switching behavior and rail-to-rail input tolerance.

Technical Context

The 74AHC3G14DC implements three independent Schmitt-trigger inverters in a single VSSOP8 package. Each channel features asymmetric input thresholds (e.g., VT+ = 3.15 V, VT− = 1.35 V at VCC = 4.5 V), yielding 1.8 V hysteresis-critical for rejecting slow or noisy transitions without oscillation. Its overvoltage-tolerant inputs operate up to 5.5 V regardless of VCC, enabling level translation between 3.3 V logic domains and 5 V legacy buses.

Dynamic performance is characterized by load-dependent propagation delay (tpd = 3.2–11.0 ns) and low dynamic power dissipation (CPD = 10 pF per buffer). The device supports full −40 °C to +125 °C operation with guaranteed static parameters including VIH/VIL margins, VOL ≤ 0.55 V at IO = 8 mA, and II ≤ 2.0 μA input leakage-ensuring reliability in thermally demanding embedded control applications.

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 Schmitt-trigger inverter applications.

Compared with 74AHCT3G14DC,125, the 74AHC3G14DC offers superior noise immunity and wider input voltage margin; versus SN74LVC3G14DCUR, it provides drop-in compatibility and proven thermal stability at +125 °C without layout changes.

Availability

74AHC3G14DC,125 is available at Aetrix Electronics and suitable for industrial sensor interfaces, power-on reset generation, waveform shaping, and astable oscillator circuits requiring stable component supply across extended temperature ranges.

Supply support for 74AHC3G14DC,125 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 delivering high-performance logic, discrete, and MOSFET solutions optimized for efficiency, reliability, and miniaturization in industrial, automotive, and consumer applications.

The 74AHC3G14DC belongs to Nexperia's advanced AHC logic family-designed specifically for low-power, high-noise-immunity signal conditioning in space-constrained, thermally aggressive embedded systems.

FAQ

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

The 74AHC3G14DC accepts input voltages up to 5.5 V regardless of VCC level-a key overvoltage tolerance feature confirmed in Table 5 (Limiting Values) and Section 1. General description. This allows direct connection to 5 V buses while operating from 3.3 V supplies without external protection diodes or level shifters.

Can the 74AHC3G14DC be used in a relaxation oscillator?

Yes-the device is explicitly validated for relaxation oscillator use per Figure 15 and Section 13. Application information. With a single resistor and capacitor, it generates stable square waves; typical frequency range spans 10 kHz to 100 kHz depending on R/C values and supply voltage, leveraging its intrinsic Schmitt-trigger hysteresis.

How does the hysteresis voltage change with supply voltage?

Hysteresis (VH) scales with VCC: at 3.0 V it is 1.2 V, at 4.5 V it is 1.4 V, and at 5.5 V it reaches 1.6 V (Table 8). This linear relationship ensures consistent noise rejection across the full 2.0–5.5 V operating range, with VT+ and VT− thresholds tracking proportionally to maintain predictable switching windows.

Is the 74AHC3G14DC pin-compatible with the 74AHCT3G14DC?

Yes-both share identical VSSOP8 (SOT765-1) pinout per Section 7.1 and Table 3. Pin description. All input (1A/2A/3A), output (1Y/2Y/3Y), VCC, and GND terminals occupy identical physical locations, enabling direct substitution where TTL-level input compatibility is not required.