Nexperia USA Inc. 74AHCT1G14GW-Q100,

Overview

74AHCT1G14GW-Q100 from Nexperia is a single-channel automotive-grade Schmitt-trigger inverter with TTL-compatible input thresholds, 5-pin TSSOP5 (SOT353-1) package, -40 °C to +125 °C operating range, 4.5 V–5.5 V supply, and overvoltage-tolerant inputs up to 5.5 V. It enables robust signal conditioning in automotive body control modules where slow-rising sensor signals require noise-immune waveform shaping.

For engineers reviewing the 74AHCT1G14GW-Q100 datasheet, 74AHCT1G14GW-Q100 pinout, 74AHCT1G14GW-Q100 application, or 74AHCT1G14GW-Q100 equivalent, key selection criteria include its AEC-Q100 Grade 1 qualification, precise VT+ = 2.0 V / VT− = 0.6 V hysteresis at 5.5 V, 9.0 ns max propagation delay (CL = 50 pF), symmetrical output drive (±8 mA), and 5.5 V overvoltage-tolerant inputs enabling mixed-voltage interface translation.

Technical Context

This device implements a single inverting Schmitt trigger with fixed hysteresis (VH = 0.4–1.6 V) and TTL-level input switching thresholds-VT+ = 2.0 V and VT− = 0.6 V at VCC = 5.5 V-ensuring reliable noise rejection for slow-edge signals in automotive environments. Its input stage accepts voltages up to 5.5 V regardless of supply, supporting level translation between 3.3 V logic domains and 5 V microcontrollers.

The output delivers symmetrical ±8 mA drive capability at VCC = 4.5 V, with VOL ≤ 0.55 V and VOH ≥ 3.70 V across temperature, enabling direct interfacing with standard CMOS/TTL loads. Dynamic performance is characterized by tPD ≤ 9.0 ns (CL = 50 pF, VCC = 5.5 V) and CPD = 13 pF, supporting stable operation in relaxation oscillators and pulse-shaping circuits up to ~50 MHz effective bandwidth.

Key Specifications

Pinout & Package

TSSOP5 (SOT353-1) plastic thin shrink small outline package: 5-lead, 1.25 mm body width, 0.65 mm pitch, exposed pad not present, RoHS-compliant, moisture sensitivity level 1.

Key Features

Applications

Equivalent & Alternatives

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

Compared with 74AHC1G14GW-Q100, the AHCT variant offers tighter TTL-compatible thresholds critical for legacy 5 V systems, while SN74LVC1G14DRYR provides broader voltage flexibility at the expense of automotive qualification-making 74AHCT1G14GW-Q100 the sole choice for safety-relevant 5 V sensor interface in AEC-Q100-compliant ECUs.

Availability

74AHCT1G14GW-Q100 is available at Aetrix Electronics and suitable for automotive body control modules, lighting control units, and powertrain sensor interfaces requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for 74AHCT1G14GW-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 logic, analog, and MOSFET solutions, with leadership in automotive-qualified components and energy-efficient packaging.

This device belongs to Nexperia's AEC-Q100-qualified 74AHCT logic family, engineered specifically for robust signal conditioning in automotive subsystems where noise immunity, wide temperature operation, and interface reliability are mandatory.

FAQ

What is the maximum input voltage the 74AHCT1G14GW-Q100 can tolerate when VCC = 0 V?

The device supports 5.5 V absolute maximum input voltage on pin 2 (A) regardless of VCC state, per Table 5 "Limiting values". This allows safe connection to live 5 V buses during power sequencing or fault conditions without latch-up or damage, confirmed by JESD78 Class II Level A latch-up testing (>100 mA).

Can the 74AHCT1G14GW-Q100 drive a 50 pF capacitive load at 10 MHz?

Yes: with CL = 50 pF and VCC = 5.5 V, tPD ≤ 9.0 ns and CPD = 13 pF ensure stable operation up to ~55 MHz effective toggle rate. At 10 MHz, dynamic power dissipation is PD = CPD × VCC² × f = 13 pF × (5.5 V)² × 10 MHz ≈ 3.9 mW-well within the 250 mW total package limit at +125 °C.

How does the hysteresis voltage change with supply voltage?

VH = VT+ − VT− varies with VCC: at 4.5 V, VH = 1.4 V (2.0 V − 0.6 V); at 5.5 V, VH = 1.4 V (2.0 V − 0.6 V). The datasheet specifies constant VT+ and VT− across VCC (Table 8), yielding fixed 1.4 V hysteresis-critical for predictable noise margin in automotive harness environments.

Is pin 1 of the TSSOP5 package internally connected?

No: pin 1 is explicitly designated "n.c." (not connected) in Table 3 and Figure 2. It has no internal bond wire or silicon connection and must remain unconnected-neither grounded nor routed-to avoid parasitic coupling or mechanical stress on the die attach.