Nexperia USA Inc. 74LVT14PW,112

Overview

74LVT14PW,112 from Nexperia is a 3.3 V hex inverter with Schmitt-trigger inputs, designed for noise-immune signal conditioning in digital bus interfaces. It features bus-hold circuitry eliminating external pull-ups, IOFF partial power-down protection, ±32 mA output drive, and operates across -40 °C to +85 °C at 2.7–3.6 V supply.

For engineers reviewing the 74LVT14PW,112 datasheet, 74LVT14PW,112 pinout, 74LVT14PW,112 application, or 74LVT14PW,112 equivalent, this device serves as a robust logic-level translator and waveform shaper in mixed-voltage systems, especially where slow or noisy input transitions must be cleaned before downstream processing.

Technical Context

The 74LVT14PW,112 implements six independent Schmitt-trigger inverters using BiCMOS technology, enabling high-speed switching (tPLH/tPHL ≤ 5.7 ns at 3.3 V) with strong noise immunity via hysteresis (VT+ = 1.7 V typ, VT− = 1.1 V typ, VH = 0.6 V typ). Its IOFF circuit actively disables outputs during power-down, preventing backflow current when VCC = 0 V.

Inputs tolerate up to 5.5 V regardless of VCC, allowing direct interfacing with 5 V TTL logic; outputs drive ±32 mA/±20 mA and remain compatible with 5 V buses without loading. The device complies with JEDEC JESD8C and includes latch-up protection (>500 mA) and ESD robustness (HBM >2000 V, CDM >1000 V).

Key Specifications

Pinout & Package

TSSOP14 package (SOT402-1): 4.4 mm body width, 0.65 mm lead pitch, 14-terminal surface-mount plastic thin shrink small outline package optimized for high-density PCB layouts and thermal performance.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SN74LVC14APWR, the 74LVT14PW,112 adds essential IOFF protection for partial-power systems; versus 74LVTH14PW,118, it trades peak drive strength for lower static power and tighter propagation delay consistency-making it optimal for noise-sensitive, moderate-load industrial control interfaces.

Availability

74LVT14PW,112 is available at Aetrix Electronics and suitable for industrial bus interface, digital signal conditioning, hot-swappable module control, and mixed-voltage logic translation requiring stable component supply across extended temperature ranges.

Supply support for 74LVT14PW,112 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, reliable logic, analog, and discrete components for automotive, industrial, and consumer applications.

The 74LVT14 belongs to Nexperia's LVT (Low-Voltage TTL) logic family, engineered for high-speed, noise-immune interfacing in 3.3 V systems with backward compatibility to 5 V logic-targeting industrial control, communications infrastructure, and embedded computing.

FAQ

Does the 74LVT14PW,112 support true 5 V logic level translation?

No-it does not translate 5 V inputs to 3.3 V outputs in a voltage-shifting sense. Its inputs are 5.5 V tolerant, meaning they safely accept 5 V signals while operating at 3.3 V VCC, and its outputs swing rail-to-rail (0 V to 3.3 V), so it interfaces *with* 5 V logic but does not produce 5 V outputs. For bidirectional level shifting, a dedicated translator IC is required.

Can unused inputs be left floating?

No-unused inputs must not be left floating. However, the integrated bus-hold circuitry automatically maintains the last valid logic state on unconnected inputs, eliminating the need for external pull-up or pull-down resistors. This feature reduces BOM count and PCB area while ensuring deterministic behavior during power-up or configuration changes.

What is the thermal performance of the TSSOP14 package?

The SOT402-1 (TSSOP14) package has a thermal resistance θJA of approximately 120 K/W (typical, still air). At maximum recommended ambient temperature (+85 °C) and full output loading, junction temperature remains below 150 °C due to Ptot derating above 81 °C (7.3 mW/K). For sustained high-drive operation, consider localized airflow or copper pour under the exposed pad if used in DHVQFN variants.

How does IOFF behave during power sequencing?

When VCC drops below ~0.8 V, the IOFF circuit activates automatically-disabling all outputs and presenting high-impedance I/O terminals. This prevents reverse current flow from powered downstream circuits (e.g., 5 V buses) into the unpowered 74LVT14PW,112, protecting both the device and upstream power supplies during staggered power-down sequences in complex multi-rail systems.