NXP Semiconductors 74ALVC14PW,112

Overview

74ALVC14PW,112 from Nexperia is a hex inverting Schmitt trigger IC operating from 1.65 V to 3.6 V supply, featuring IOFF partial power-down protection, ±24 mA output drive at 3.0 V, and hysteresis thresholds (VT+ = 1.1–2.0 V, VT− = 0.3–1.2 V at VCC = 3.0–3.6 V) for noise-immune signal conditioning in digital interface circuits.

For engineers reviewing the 74ALVC14PW,112 datasheet, 74ALVC14PW,112 pinout, 74ALVC14PW,112 application, or 74ALVC14PW,112 equivalent, this device is selected for robust level translation between mixed-voltage logic domains, debouncing mechanical switches, and generating clean clock edges from noisy sensor inputs in industrial control and embedded I/O subsystems.

Technical Context

The 74ALVC14PW,112 implements six independent CMOS inverting Schmitt triggers with rail-to-rail input tolerance up to 3.6 V and IOFF circuitry that disables outputs during power-down to prevent backflow current. Its transfer characteristics are defined by dual voltage thresholds (VT+, VT−) yielding 0.3–1.2 V hysteresis, enabling reliable edge detection on slow or noisy signals.

It complies with JEDEC standards JESD8-7 (1.65–1.95 V), JESD8-5 (2.3–2.7 V), and JESD8C/JESD36 (2.7–3.6 V), supports operation from −40 °C to +125 °C, and delivers propagation delays as low as 1.0 ns (typ.) at VCC = 3.3 V with 30 pF load.

Key Specifications

Pinout & Package

TSSOP14 plastic thin shrink small outline package (SOT402-1); 14-lead, 4.4 mm body width, 0.65 mm pitch; thermally enhanced for high-density PCB layouts.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SN74LV14APWR and 74LVC14PW,118, the 74ALVC14PW,112 uniquely combines guaranteed IOFF protection, optimized 1.65–3.6 V performance, and industry-leading hysteresis consistency across temperature - making it the preferred choice for safety-critical power sequencing and mixed-voltage industrial I/O.

Availability

74ALVC14PW,112 is available at Aetrix Electronics and suitable for industrial automation interfaces, embedded sensor signal conditioning, and mixed-voltage logic translation requiring stable component supply across extended temperature ranges.

Supply support for 74ALVC14PW,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 specializing in high-performance, energy-efficient logic, analog, and discrete components for automotive, industrial, and consumer applications.

The ALVC (Advanced Low-Voltage CMOS) product line delivers high-speed, low-power logic devices optimized for 1.65–3.6 V operation with robust noise immunity and advanced power management features like IOFF.

FAQ

What is the maximum allowable input voltage when VCC = 1.65 V?

The 74ALVC14PW,112 supports overvoltage-tolerant inputs up to 3.6 V regardless of VCC level. At VCC = 1.65 V, inputs may safely swing from 0 V to 3.6 V without damage or latch-up, per Table 5 and Section 2 of the datasheet. This enables direct connection to higher-voltage signal sources without external clamping.

Does the device support true bidirectional IOFF operation?

No - the 74ALVC14PW,112 provides unidirectional IOFF: outputs enter high-impedance state when VCC = 0 V, but inputs remain passive and do not actively block current flow. The IOFF function protects downstream circuitry from backflow through outputs only; input pins retain their overvoltage tolerance but lack active isolation.

Can this IC be used to generate a square wave without external components?

No - the 74ALVC14PW,112 requires at minimum one external resistor and capacitor to form a relaxation oscillator (as shown in Fig. 9). It lacks internal timing elements or oscillation circuitry; its six inverters serve only as gain stages in externally configured feedback loops.

How does hysteresis vary with supply voltage and temperature?

Hysteresis (VH = VT+ − VT−) ranges from 0.3 V to 1.2 V depending on VCC and temperature. At VCC = 3.6 V, VH is 0.3–1.2 V over −40 °C to +125 °C (Table 10); at VCC = 1.65 V, VH is 0.25–0.62 V. This variation is fully characterized and guaranteed - no derating is needed for design-in.