Nexperia USA Inc. 74LVT14D,118

Overview

74LVT14D,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, bus-hold circuitry eliminating external pull-ups, IOFF partial power-down protection, ±20 mA/±32 mA output drive, and operates across -40 °C to +85 °C.

For engineers reviewing the 74LVT14D,118 datasheet, 74LVT14D,118 pinout, 74LVT14D,118 application, or 74LVT14D,118 equivalent, key selection criteria include Schmitt-trigger hysteresis (0.4–0.6 V), 5.5 V overvoltage-tolerant inputs, 3.3 V supply compatibility, SO14 package mechanical dimensions, and IOFF-enabled system-level power sequencing.

Technical Context

The 74LVT14D implements six independent BiCMOS inverter stages, each 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 bus-hold circuitry actively maintains last-valid logic state on un-driven inputs without external resistors.

IOFF functionality disables outputs when VCC = 0 V, blocking backflow current up to 4.5 V on I/O pins-critical for hot-swap and multi-rail partial-power-down systems. Input clamping supports 5.5 V tolerance while operating from 2.7–3.6 V, enabling direct interfacing with 5 V TTL logic without level shifters.

Key Specifications

Pinout & Package

74LVT14D,118 uses the SO14 (SOT108-1) plastic small outline package: 14-pin, 3.9 mm body width, 1.27 mm lead pitch, gull-wing leads, JEDEC MS-012 compliant.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SN74LVC14APWR and 74LVTH14PW, the 74LVT14D,118 uniquely combines industrial temperature range, 5.5 V input tolerance, and IOFF-making it the only option qualified for ruggedized hot-swap and mixed-voltage industrial control designs.

Availability

74LVT14D,118 is available at Aetrix Electronics and suitable for industrial bus interface, hot-swappable backplane, embedded sensor hub, and legacy system upgrade applications requiring stable component supply, long-term lifecycle support, and traceable sourcing.

Supply support for 74LVT14D,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 delivering high-performance, reliable discrete, logic, and MOSFET solutions optimized for efficiency, size, and thermal performance in industrial and automotive markets.

The 74LVT14 belongs to Nexperia's LVT logic family-designed specifically for 3.3 V systems requiring robust noise immunity, mixed-voltage interoperability, and partial-power-down capability in harsh industrial environments.

FAQ

Does 74LVT14D,118 support true 5 V logic level translation?

No-it does not translate 5 V inputs to 3.3 V outputs. Its inputs are overvoltage tolerant up to 5.5 V while powered from 3.3 V, allowing safe connection to 5 V buses, but output swing remains rail-to-rail relative to VCC (i.e., ~0 V to 3.3 V). For bidirectional level shifting, external circuitry is required.

Can bus-hold functionality be disabled?

No-bus-hold is an internal, always-active feature tied to each input pin. It cannot be disabled via external control or configuration. It automatically engages when an input is left floating, maintaining its last valid logic state without external components.

What is the maximum capacitive load the 74LVT14D,118 can drive reliably?

The device is characterized up to 50 pF load capacitance (per Table 9), with propagation delays specified under that condition. Driving >50 pF may increase delay and reduce edge rate; for >100 pF loads, consider buffering or reducing trace length to maintain timing integrity.

Is the GND pin (Pin 7) electrically isolated from the exposed pad in SO14 packages?

SO14 (SOT108-1) packages have no exposed thermal pad-only gull-wing leads. The GND pin (Pin 7) is the sole ground reference for the die and must be connected to system ground. There is no thermal pad or secondary ground terminal in this package variant.