onsemi 74LVX00MX

Overview

74LVX00MX from ON Semiconductor is a low-voltage quad 2-input NAND gate IC designed for level-translating logic interfaces between 5V and 3.3V systems. It features 14-pin SOIC packaging, operates from 2.0V to 3.6V supply, tolerates input voltages up to 7V, delivers ±4mA output drive, and supports –40°C to +85°C industrial temperature range - enabling robust use in mixed-voltage digital control subsystems.

For engineers reviewing the 74LVX00MX datasheet, pinout, applications, or equivalent options, key selection considerations include its 5.5V-tolerant inputs, guaranteed simultaneous switching noise immunity, dynamic threshold performance, and compatibility with JEDEC MS-012 narrow SOIC footprint for legacy board reuse.

Technical Context

The 74LVX00MX implements four independent CMOS NAND gates with rail-to-rail input voltage tolerance (0V to 5.5V) while powered from a 2.0–3.6V VCC supply - enabling direct interfacing of 5V TTL outputs to 3.3V logic without external level shifters. Its design ensures stable operation under fast edge rates (input tr/tf ≤ 100 ns/V) and meets strict dynamic noise specifications including VOLP ≤ 0.5V and VIHD ≥ 2.0V at 3.3V/50pF.

Propagation delays are characterized across voltage and temperature: tPLH/tPHL = 4.1 ns (typ) at 3.3V/15pF and 6.6 ns (typ) at 3.3V/50pF, with output-to-output skew limited to 1.5 ns max. Quiescent ICC is ≤ 20 µA at 3.6V, supporting ultra-low static power in battery-sensitive applications.

Key Specifications

Pinout & Package

74LVX00MX is housed in a 14-lead Small Outline Integrated Circuit (SOIC) package per JEDEC MS-012, 0.150" narrow body width, with gull-wing leads and 1.27 mm pitch. Pin 1 is marked by a beveled corner or dot; device orientation follows standard IC conventions with pin 1 in top-left corner when notch or mark faces upward.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SN74LVC00APWR and 74AHC00PW, the 74LVX00MX uniquely supports 5V-tolerant inputs at 3.3V supply without external components - making it the only option among the three that eliminates level-shifter circuitry in mixed-voltage industrial control designs.

Availability

74LVX00MX is available at Aetrix Electronics and suitable for industrial sensor interfaces, legacy system voltage translation, low-power remote monitoring nodes, and automotive body control modules requiring stable component supply and long-term obsolescence management.

Supply support for 74LVX00MX 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

ON Semiconductor is a global semiconductor manufacturer specializing in energy-efficient power management, analog, logic, and sensor solutions for automotive, industrial, cloud computing, and IoT applications.

The 74LVX00MX belongs to ON Semiconductor's legacy logic family derived from Fairchild's LVX series, engineered specifically for robust voltage-level translation and noise-immune operation in mixed-supply digital systems.

FAQ

What is the maximum input voltage the 74LVX00MX can tolerate?

The 74LVX00MX supports DC input voltages from –0.5V to 7.0V, independent of VCC. This 5.5V absolute maximum rating (per datasheet Section "Absolute Maximum Ratings") allows safe interfacing with 5V TTL and CMOS outputs even when powered from 2.0–3.6V - a core feature distinguishing it from standard LVC or AHC logic families. The 74LVX00MX input structure includes built-in protection diodes rated for ±20mA, ensuring reliability under transient overvoltage conditions.

Does the 74LVX00MX require pull-up or pull-down resistors on unused inputs?

Yes - per the "Recommended Operating Conditions" table in the 74LVX00MX datasheet, all unused inputs must be held HIGH or LOW and must not float. Floating inputs can cause increased ICC, erratic output behavior, or excessive power dissipation due to undefined internal node states. For the 74LVX00MX, tying unused inputs directly to VCC or GND (not through high-value resistors) is recommended to guarantee stable operation across –40°C to +85°C.

What is the typical propagation delay of the 74LVX00MX at 3.3V supply?

At VCC = 3.3V ± 0.3V, CL = 15pF, and TA = +25°C, the 74LVX00MX exhibits tPLH/tPHL = 4.1 ns (typical) and 7.5 ns (maximum) per gate. With 50pF load, delay increases to 6.6 ns (typ) and 11.0 ns (max). These values are measured under controlled AC test conditions defined in the "AC Electrical Characteristics" section and reflect actual gate switching performance - not theoretical minimums - making them directly usable for timing budget calculations in 10 MHz digital control loops.

Is the 74LVX00MX pin-compatible with other 74-series quad NAND packages?

The 74LVX00MX uses the standard 14-pin SOIC (JEDEC MS-012) footprint shared by most 74-series quad NAND devices, including 74HC00, 74LS00, and 74LVC00. Pin assignments (1–14) match the industry-standard logic diagram: inputs on pins 1/2, 4/5, 8/9, 11/12; outputs on 3, 6, 10, 13; VCC on 14; GND on 7. However, electrical behavior differs significantly - especially input voltage tolerance - so functional substitution requires verification of signal levels and timing in the target application.

What is the quiescent supply current of the 74LVX00MX at 3.6V?

The 74LVX00MX draws ≤ 20.0 µA of quiescent supply current (ICC) at VCC = 3.6V and TA = –40°C to +85°C, as specified in the "DC Electrical Characteristics" table. This value represents worst-case ICC across temperature and process variation - not a typical or room-temperature-only figure. The low ICC enables use in always-on supervisory circuits, such as watchdog timer enable paths or battery-backed real-time clock gating, where cumulative leakage must remain below 100 µA per subsystem.