Diodes Incorporated 74LVC1G14FZ4-7

Overview

74LVC1G14FZ4-7 from Diodes Incorporated is a single-channel Schmitt-trigger inverter IC in X2-DFN1410-6 package, operating from 1.65V to 5.5V supply, featuring 5.5V-tolerant inputs, ±24mA output drive at 3.3V, IOFF partial power-down protection, and hysteresis of 0.60–1.20V (at 5.5V). It enables robust signal conditioning in mixed-voltage logic interfaces such as USB voltage-level translation or microcontroller reset debouncing.

For engineers reviewing the 74LVC1G14FZ4-7 datasheet, 74LVC1G14FZ4-7 pinout, 74LVC1G14FZ4-7 application, or 74LVC1G14FZ4-7 equivalent, key selection criteria include input hysteresis width, IOFF leakage (<±10 µA at –40°C to +85°C), propagation delay (0.7–4.4 ns at VCC = 3.3V, CL = 15pF), 5.5V input tolerance, and thermal resistance (θJA = 460°C/W) in its 1.4mm × 1.0mm DFN package.

Technical Context

This device implements a positive-logic inverting function with Schmitt-trigger input thresholds-VT+ = 2.61–3.33V and VT− = 1.45–2.35V at VCC = 5.5V-delivering 0.60–1.20V hysteresis to reject noise on slow-rising/falling signals. Its IOFF circuit actively disables outputs during power-down, preventing back-current flow when VCC = 0V while inputs or outputs remain biased to 5.5V.

The gate supports wide-voltage operation (1.65–5.5V) and delivers rail-to-rail CMOS-compatible outputs with VOL ≤ 0.55V at IOL = 24mA (VCC = 3.3V) and VOH ≥ 2.0V at IOH = −24mA (VCC = 3.3V), enabling direct interfacing with legacy 5V logic and modern low-voltage MCUs without external level shifters.

Key Specifications

Pinout & Package

X2-DFN1410-6: 1.4 mm × 1.0 mm × 0.4 mm body, 0.5 mm pad pitch, 6-terminal chip-scale package with exposed thermal pad (not electrically connected); RoHS-compliant, halogen- and antimony-free "Green" construction.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SN74LVC1G14DBVR, the 74LVC1G14FZ4-7 offers superior miniaturization (1.4×1.0 mm vs. 2.9×1.6 mm) and 5.5V input tolerance, while the 74AUP1G14GW trades off drive and voltage range for nanowatt operation-making FZ4-7 optimal for space-constrained, mixed-voltage industrial interfaces.

Availability

74LVC1G14FZ4-7 is available at Aetrix Electronics and suitable for industrial sensor interfaces, USB peripheral signal conditioning, and microcontroller reset management requiring stable component supply, long-term lifecycle support, and consistent DFN packaging.

Supply support for 74LVC1G14FZ4-7 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

Diodes Incorporated is a global semiconductor company specializing in discrete, analog, and logic solutions, with design centers in Asia, Europe, and the US, serving industrial, computing, and consumer markets.

The 74LVC logic family targets high-speed, low-voltage, mixed-signal applications demanding robust noise immunity, wide supply flexibility, and compatibility across legacy and next-generation digital systems.

FAQ

Can 74LVC1G14FZ4-7 operate with VCC = 1.65V while accepting a 5.5V input?

Yes. The device is explicitly rated for 5.5V-tolerant inputs across its full 1.65–5.5V VCC range. At VCC = 1.65V, VI can safely reach 5.5V without damage or functional degradation, enabling direct interface to higher-voltage control signals in battery-powered systems.

What is the maximum recommended PCB trace length for maintaining signal integrity with this inverter?

For 100 Mbps signals (10 ns rise time), keep trace lengths under 25 mm on FR-4 with controlled impedance (50 Ω). The 0.7 ns minimum propagation delay and 22 pF power dissipation capacitance indicate suitability for short-haul routing; longer traces require series termination or careful layout to avoid ringing.

Does the IOFF feature require external pull-up/pull-down resistors on Y or A pins during power-down?

No. IOFF internally disables the output driver and isolates the Y pin, limiting leakage to ±10 µA. External resistors are unnecessary and may degrade noise margin; however, unused A inputs should be tied to VCC or GND per datasheet recommendation to prevent floating states.

How does the hysteresis of 74LVC1G14FZ4-7 compare to standard CMOS inverters in noise rejection?

Standard inverters have near-zero hysteresis (typically <0.1V), making them vulnerable to noise-induced oscillation on slow edges. This Schmitt-trigger provides 0.60–1.20V hysteresis-over 10× greater-ensuring clean, single-transition output even with 500 mVpp noise on input signals, critical for mechanical switch or sensor interfaces.