Nexperia USA Inc. 74AHCT14PW-Q100,11

Overview

74AHCT14PW-Q100 from Nexperia is an automotive-grade hex inverting Schmitt trigger IC with TTL-compatible inputs, 14-pin TSSOP package, -40 °C to +125 °C operating range, and overvoltage-tolerant inputs up to 5.5 V-used for noise-immune signal conditioning in engine control units and body electronics.

For engineers reviewing the 74AHCT14PW-Q100 datasheet, 74AHCT14PW-Q100 pinout, 74AHCT14PW-Q100 application, or 74AHCT14PW-Q100 equivalent, key selection criteria include Schmitt-trigger hysteresis (0.4–1.5 V), propagation delay (4.0–9.0 ns at VCC = 4.5–5.5 V), input threshold compatibility with legacy TTL logic, and AEC-Q100 Grade 1 qualification for under-hood deployment.

Technical Context

This device implements six independent inverting Schmitt-trigger buffers with asymmetric input thresholds: VT+ = 1.9–2.1 V and VT− = 0.5–0.6 V at VCC = 4.5–5.5 V, delivering 1.4 V typical hysteresis. Its TTL-level input sensitivity enables direct interfacing with 5 V microcontroller GPIOs without level-shifting.

Each channel provides rail-to-rail CMOS output drive (±8 mA at VCC = 4.5 V), low static current (≤40 μA at VCC = 5.5 V), and dynamic power dissipation governed by CPD = 12 pF-enabling reliable operation in high-noise automotive sensor signal paths and reset debouncing circuits.

Key Specifications

Pinout & Package

TSSOP14 plastic thin shrink small outline package (SOT402-1); 14 leads; body width 4.4 mm; exposed pad not electrically connected.

Key Features

Applications

Equivalent & Alternatives

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

Compared with 74AHCT14PW-Q100, the 74AHC14PW-Q100 offers broader supply flexibility and faster timing but requires CMOS-level drive sources, while the SN74LV14APWR reduces cost and supports wider VCC but lacks AEC-Q100 validation and high-temp capability-making it unsuitable for under-hood deployment.

Availability

74AHCT14PW-Q100 is available at Aetrix Electronics and suitable for engine control units, body control modules, transmission control systems, and automotive sensor interface circuits requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for 74AHCT14PW-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 optimized for automotive, industrial, and consumer applications.

The 74AHCT14-Q100 series belongs to Nexperia's automotive-qualified logic portfolio, designed specifically to meet stringent AEC-Q100 requirements for signal integrity, noise immunity, and thermal robustness in vehicle electronic control units.

FAQ

Is 74AHCT14PW-Q100 pin-compatible with standard 74HC14 or 74LS14 packages?

Yes, the 74AHCT14PW-Q100 uses the industry-standard TSSOP14 footprint (SOT402-1), matching pin assignments of generic 74HC14 and 74LS14 in the same package variant. However, electrical behavior differs: AHCT inputs are TTL-compatible (not CMOS), and it features overvoltage tolerance absent in LS/HC variants-requiring verification of driving source compatibility.

Can this device be used with a 3.3 V supply?

No-74AHCT14PW-Q100 is specified only for VCC = 4.5 V to 5.5 V per its recommended operating conditions. At 3.3 V, input thresholds fall outside TTL specification (VIH min = 2.0 V), risking unreliable switching. For 3.3 V systems, use the pin-compatible 74AHC14PW-Q100 instead, which supports 2.0–5.5 V operation.

What is the maximum capacitive load this device can drive reliably?

The datasheet specifies guaranteed performance up to CL = 50 pF with propagation delay ≤10.0 ns at VCC = 4.5–5.5 V. Driving >50 pF increases delay nonlinearly and may cause ringing; for heavier loads, add a series resistor (22–47 Ω) near the output to dampen reflections and maintain signal integrity on PCB traces longer than 5 cm.

Does the exposed pad on the TSSOP14 package require grounding?

No-the DHVQFN variant has an exposed thermal pad, but the TSSOP14 (SOT402-1) package used for 74AHCT14PW-Q100 has no exposed pad. The "Side-Wettable Flanks" feature referenced in the datasheet applies only to the BQ (DHVQFN) variant-not the PW (TSSOP) version-so no thermal pad connection or soldering is involved for this part number.