Nexperia USA Inc. 74LVT14PW,118

Overview

74LVT14PW,118 from Nexperia is a 3.3 V hex inverter with Schmitt-trigger inputs, designed for noise-immune signal conditioning in bus-interface and level-shifting applications. It features six independent inverting channels, ±20 mA/32 mA output drive, IOFF partial power-down protection, and operates across –40 °C to +85 °C with supply voltage from 2.7 V to 3.6 V.

For engineers reviewing the 74LVT14PW,118 datasheet, 74LVT14PW,118 pinout, 74LVT14PW,118 application, or 74LVT14PW,118 equivalent, key selection criteria include Schmitt-trigger hysteresis (0.4–0.6 V), 5.5 V overvoltage-tolerant inputs, TSSOP14 package compatibility, and bus-hold functionality eliminating external pull-ups.

Technical Context

The 74LVT14PW implements six independent CMOS-compatible inverters with asymmetric Schmitt-trigger thresholds (VT+ = 1.5–2.0 V, VT− = 0.9–1.3 V at VCC = 3.3 V), enabling robust noise rejection on slow or noisy digital lines. Its BiCMOS output stage delivers TTL-level compatible drive while maintaining low input current.

IOFF circuitry actively disables outputs when VCC = 0 V, blocking backflow current up to 4.5 V on I/O pins-critical for hot-swap and partial-power-down systems. Bus-hold inputs retain last valid logic state without external biasing, reducing BOM count and PCB footprint.

Key Specifications

Pinout & Package

TSSOP14 (SOT402-1) package: 4.4 mm body width, 0.65 mm lead pitch, 1.2 mm height, thermal pad optional (non-grounded).

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,118 adds critical IOFF and 5.5 V input tolerance for mixed-voltage hot-swap systems; versus 74LVTH14PW,118, it trades peak drive for broader input voltage interoperability-making it optimal for 3.3 V–5 V boundary applications.

Availability

74LVT14PW,118 is available at Aetrix Electronics and suitable for industrial control interfaces, sensor signal conditioning, hot-swappable backplane designs, and legacy TTL-to-3.3 V translation requiring stable component supply across extended temperature ranges.

Supply support for 74LVT14PW,118 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, high-reliability logic, analog, and discrete components for industrial, automotive, and computing markets.

The 74LVT series targets high-speed, low-voltage bus interface applications where noise immunity, power sequencing safety, and mixed-voltage interoperability are essential-particularly in programmable logic, instrumentation, and modular system design.

FAQ

Does the 74LVT14PW,118 require external pull-up resistors on unused inputs?

No. The device integrates bus-hold circuitry on all six inputs, which actively retains the last valid logic state without external components. This reduces BOM count, PCB area, and potential signal integrity issues caused by floating nodes in high-noise environments.

Can the 74LVT14PW,118 safely interface with 5 V logic while powered from 3.3 V?

Yes. Its inputs are overvoltage tolerant up to 5.5 V regardless of VCC state, allowing direct connection to 5 V buses without level shifters or clamping diodes. Output levels remain 3.3 V compatible, ensuring safe interfacing with downstream 3.3 V receivers.

What happens to the outputs during power-down sequences?

When VCC drops to 0 V, the IOFF circuitry automatically places all six outputs in high-impedance state with leakage limited to ±100 μA. This prevents damaging backflow current from live 5 V buses into the unpowered device-a key requirement for hot-swap and partial-power-down architectures.

Is the thermal pad on the TSSOP14 package electrically connected or required to be grounded?

No. The exposed thermal pad (pin 1 index area) has no electrical function and is not internally connected to GND or any other node. It may be left unconnected or soldered to a floating copper pour; if connected, it must remain at GND potential to avoid parasitic coupling or thermal stress.