onsemi NLV74VHCT14ADTR2G

Overview

NLV74VHCT14ADTR2G from onsemi is a hex Schmitt-trigger inverter IC designed for automotive-grade signal conditioning in noise-prone environments. It operates from 4.5 V to 5.5 V, features 8 mA output drive at V_OH = 4.4 V, 12 ns typical propagation delay at V_CC = 5 V, and meets AEC-Q100 Grade 1 qualification (−40 °C to +125 °C). It is used in digital input debouncing, waveform shaping, and clock signal cleanup in body control modules.

For engineers reviewing the NLV74VHCT14ADTR2G datasheet, pinout, applications, or equivalent options, key selection criteria include Schmitt-trigger hysteresis (ΔV_IN = 0.8 V min), automotive temperature range compliance, TTL-compatible input thresholds, and TSSOP-14 package suitability for space-constrained PCB layouts.

Technical Context

The NLV74VHCT14ADTR2G implements six independent Schmitt-trigger inverting buffers with hysteresis on each input to reject noise and ensure clean logic transitions. Its CMOS input stage provides high impedance and low static current, while the push-pull output stage delivers rail-to-rail swing and drives standard TTL and CMOS loads.

It belongs to the VHCT (Very High Speed CMOS-TTL compatible) family and uses silicon-gate CMOS technology optimized for 5 V operation. Input thresholds are referenced to V_CC, enabling robust interfacing with mixed-voltage systems where inputs may swing near ground or V_CC.

Key Specifications

Pinout & Package

Supplied in a 14-pin thin shrink small outline package (TSSOP-14) with 0.65 mm pitch, 5.0 mm × 4.4 mm body size, and exposed pad for thermal enhancement in automotive PCBs.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MC74VHC14DT and SN74LVC14APWR, the NLV74VHCT14ADTR2G uniquely combines AEC-Q100 Grade 1 qualification, 0.8 V minimum hysteresis, and strict 5 V operation-making it the only option certified for safety-critical, high-noise automotive signal conditioning where thermal and EMI margins are non-negotiable.

Availability

NLV74VHCT14ADTR2G is available at Aetrix Electronics and suitable for body control modules, door actuator interfaces, instrument cluster input conditioning, and engine coolant temperature signal shaping requiring stable component supply across automotive production lifecycles.

Supply support for NLV74VHCT14ADTR2G 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

onsemi is a global semiconductor supplier delivering energy-efficient, intelligent power and sensing solutions for automotive, industrial, cloud, medical, and IoT applications.

The NLV74VHCT14ADTR2G belongs to onsemi's automotive-qualified logic portfolio, engineered specifically for robust signal integrity in harsh-temperature, high-EMI vehicle subsystems such as body electronics and powertrain controls.

FAQ

What is the maximum operating temperature for NLV74VHCT14ADTR2G?

The NLV74VHCT14ADTR2G is qualified per AEC-Q100 Grade 1 and operates continuously from −40 °C to +125 °C ambient temperature. This rating applies to the full device functionality including propagation delay, output drive strength, and input hysteresis stability across the entire range. The NLV74VHCT14ADTR2G must be mounted on a PCB with appropriate copper pour and thermal vias to maintain junction temperature below 150 °C under worst-case power dissipation.

Does NLV74VHCT14ADTR2G support 3.3 V logic inputs?

No, the NLV74VHCT14ADTR2G is designed exclusively for 5 V operation (4.5 V–5.5 V supply) and features TTL-compatible input thresholds (V_IL ≤ 0.8 V, V_IH ≥ 2.0 V). Applying 3.3 V logic signals directly to its inputs violates the minimum V_IH specification and risks unreliable switching. For 3.3 V–5 V interfacing, an external level shifter or a dual-supply logic device such as the NLV74VHCT245ADR2G is required alongside the NLV74VHCT14ADTR2G.

Is NLV74VHCT14ADTR2G pin-compatible with standard 74HC14 devices?

Yes, the NLV74VHCT14ADTR2G uses the same 14-pin TSSOP footprint and pin assignment as industry-standard 74HC14 and 74HCT14 devices. All six inverter channels, V_CC, and GND map identically. However, the NLV74VHCT14ADTR2G adds automotive qualification, tighter hysteresis control, and enhanced ESD protection (±4 kV HBM), making it a drop-in replacement only in designs requiring those specific enhancements-not a generic substitute for commercial-grade HC/HCT variants.

What is the typical propagation delay of NLV74VHCT14ADTR2G at 5 V?

The typical propagation delay (t_PD) of NLV74VHCT14ADTR2G is 12 ns when measured under standard test conditions: V_CC = 5.0 V, T_A = 25 °C, C_L = 50 pF, and input transition time = 3.0 ns. This value represents the average delay from input crossing 1.5 V to output crossing 1.5 V. The NLV74VHCT14ADTR2G maintains t_PD ≤ 20 ns across the full −40 °C to +125 °C temperature range and 4.5 V–5.5 V supply range, as verified in the official onsemi datasheet.

Can NLV74VHCT14ADTR2G drive LED indicators directly?

No, the NLV74VHCT14ADTR2G is not intended for direct LED driving. Its output structure is optimized for logic-level interfacing-not constant-current sourcing. While it can sink or source up to 8 mA per channel, sustained LED current would exceed recommended DC output limits and degrade long-term reliability. For LED indication, use a dedicated LED driver IC or add a series current-limiting resistor and external transistor stage. The NLV74VHCT14ADTR2G should remain strictly in signal conditioning roles upstream of such drivers.