onsemi 74LVX132MX

Overview

74LVX132MX from onsemi is a low-voltage quad 2-input NAND Schmitt trigger IC designed for noise-immune digital signal conditioning in mixed-voltage systems. It features hysteresis (V_H = 0.3–1.2 V), 3.3 V supply operation (2.0–3.6 V), ±25 mA output drive, 5.5 V-tolerant inputs, and TSSOP-14 WB package - enabling clean signal regeneration in battery-powered industrial sensors and 3.3 V/5 V interface translation.

For engineers reviewing the 74LVX132MX datasheet, pinout, applications, or equivalent options, key selection considerations include input hysteresis width, simultaneous switching noise immunity, 5 V-to-3.3 V level translation capability, and guaranteed dynamic threshold performance across −40 °C to +85 °C.

Technical Context

The 74LVX132MX implements four independent Schmitt-trigger NAND gates with asymmetric input thresholds: V_t+ = 2.2 V (min) and V_t− = 0.9 V (max) at V_CC = 3.0 V, yielding 1.2 V max hysteresis. This architecture converts slow-rising/falling waveforms into sharp-edged outputs while rejecting high-frequency noise near switching thresholds.

It supports mixed-voltage interfacing via 5.5 V-tolerant inputs and operates from 2.0 V to 3.6 V supply, with propagation delays as low as 6.1 ns (typ) at 3.3 V/15 pF load. Output skew is limited to 1.5 ns (max), ensuring timing coherence across all four gates under simultaneous switching conditions.

Key Specifications

Pinout & Package

TSSOP-14 WB (Case 948G), 4.9 mm × 4.4 mm × 1.2 mm body, 0.65 mm pitch, Pb-free, halogen-free.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SN74LV86AQPWRQ1 and 74LVC132PW,118, the 74LVX132MX delivers superior noise immunity (guaranteed hysteresis), lowest quiescent current, and optimized 3.3 V operation - making it ideal for battery-sensitive, noise-prone industrial interfaces where precise edge definition matters most.

Availability

74LVX132MX is available at Aetrix Electronics and suitable for industrial sensor interfaces, pushbutton debouncing circuits, mixed-voltage bus translation, and power-on reset conditioning requiring stable component supply and long-term lifecycle support.

Supply support for 74LVX132MX 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

onsemi (formerly ON Semiconductor) is a global semiconductor supplier specializing in energy-efficient silicon solutions for automotive, industrial, cloud, and IoT applications.

The LVX logic family - including the 74LVX132MX - was engineered for low-voltage, low-noise 3.3 V digital systems requiring high noise immunity and mixed-voltage interoperability.

FAQ

What is the maximum input voltage the 74LVX132MX can tolerate?

The 74LVX132MX supports DC input voltages up to 5.5 V regardless of V_CC level, enabling safe interfacing with 5 V logic families while operating from a 3.3 V supply. This tolerance is specified in the Absolute Maximum Ratings table and validated across temperature, with no additional clamping circuitry required.

Does the 74LVX132MX require external pull-up resistors on its outputs?

No - the 74LVX132MX features totem-pole CMOS outputs capable of actively sourcing and sinking current (±4 mA). Pull-ups are unnecessary unless open-drain behavior is specifically needed; standard use connects outputs directly to downstream CMOS inputs or controlled-impedance traces.

Can unused inputs on the 74LVX132MX be left floating?

No - per the Recommended Operating Conditions note, all unused inputs must be tied HIGH or LOW. Floating inputs risk oscillation due to Schmitt trigger sensitivity, increased power consumption, and potential damage from intermediate voltage states. Tie unused A/B pins to V_CC or GND via 10 kΩ resistors.

What is the typical propagation delay of the 74LVX132MX at 3.3 V?

At V_CC = 3.3 V ± 0.3 V and C_L = 15 pF, the typical propagation delay (t_PLH/t_PHL) of the 74LVX132MX is 6.1 ns. This value is measured under controlled conditions and represents the average transition time from input threshold crossing to valid output level establishment.

Is the 74LVX132MX pin-compatible with the standard 74LVX00?

Yes - the 74LVX132MX shares identical pin configuration and basic NAND functionality with the 74LVX00, but adds Schmitt-trigger input hysteresis. Pin-for-pin compatibility allows drop-in replacement where enhanced noise immunity is needed, though design review should confirm timing and loading effects of the hysteresis feature.