STMicroelectronics 74LVX32MTR

Overview

74LVX32MTR from STMicroelectronics is a low-voltage CMOS quad 2-input OR gate with 5V-tolerant inputs, operating from 2V to 3.6V supply, delivering 4.4ns typical propagation delay at 3.3V, 4mA output drive, and 2µA max quiescent current - deployed in 3.3V logic interfacing between 5V and 3V systems.

For engineers reviewing the 74LVX32MTR datasheet, 74LVX32MTR pinout, 74LVX32MTR application, or 74LVX32MTR equivalent, key selection criteria include 5V-tolerant input compatibility, symmetrical 4mA output drive, sub-5ns propagation delay at 3.3V, low-noise 0.3V dynamic quiet output, and SO-14 tape-and-reel packaging for automated assembly.

Technical Context

The 74LVX32MTR implements four independent OR logic functions using sub-micron C2MOS technology with buffered outputs, providing high noise immunity and stable switching across its 2V–3.6V operating range. Its input structure accepts 0–7V regardless of VCC, enabling robust level translation without external circuitry.

All inputs feature power-down protection and 2kV ESD immunity; outputs exhibit balanced |IOH| = IOL ≥ 4mA and matched tPLH ≅ tPHL propagation delays, minimizing timing skew in synchronous logic paths.

Key Specifications

Pinout & Package

74LVX32MTR is housed in a 14-pin SOIC (Small Outline Integrated Circuit) package with tape-and-reel delivery (SO-14, JEDEC MS-012). Pin pitch is 1.27mm; body width is 3.9mm; total length is 8.65mm.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar quad 2-input OR gate applications.

Compared with 74LVC32PW,118 and SN74AHC32DR, the 74LVX32MTR uniquely delivers guaranteed 5V-tolerant inputs down to 2V VCC while maintaining sub-5ns delay and µA-level quiescent current - making it optimal for mixed-voltage battery-powered systems requiring robust level translation.

Availability

74LVX32MTR is available at Aetrix Electronics and suitable for industrial PLC I/O expansion, automotive body control modules, portable medical monitor interfaces, and communications baseband boards requiring stable component supply and long-term manufacturability.

Supply support for 74LVX32MTR 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

STMicroelectronics is a global semiconductor leader headquartered in Geneva, Switzerland, specializing in automotive, industrial, and power management ICs with strong analog and mixed-signal design heritage.

The 74LVX series was engineered specifically for low-voltage, low-noise 3.3V logic interfacing with 5V legacy systems - emphasizing robustness, timing precision, and ultra-low static power in space-constrained applications.

FAQ

Is 74LVX32MTR compatible with 5V logic inputs while powered at 3.3V?

Yes. The device features true 5V-tolerant inputs that accept 0–7V signals regardless of VCC, including operation at 3.3V. This is confirmed by absolute maximum ratings (VI = –0.5V to +7.0V) and recommended operating conditions (VI = 0 to 5.5V), enabling direct interface with 5V TTL or CMOS outputs without level-shifting circuitry.

What is the maximum output current per pin, and under what conditions is it specified?

The 74LVX32MTR guarantees |IOH| = IOL ≥ 4mA per output at VCC = 3.0V, with VOH ≥ 2.48V and VOL ≤ 0.44V. This is verified under DC test conditions per Table 6, ensuring reliable drive of standard TTL loads and fanout of ≥10 LVTTL inputs without exceeding output voltage limits.

Does 74LVX32MTR support partial power-down operation?

Yes. All inputs include power-down protection, allowing them to safely tolerate 0–7V even when VCC = 0V. This prevents back-powering, latch-up, or damage during hot-insertion or system power sequencing - a feature explicitly documented in the "Power Down Protection on Inputs" section and validated by absolute maximum input voltage ratings.

Can 74LVX32MTR be used in automotive applications requiring extended temperature range?

Yes. The device is rated for operation from –55°C to +125°C, with full DC and AC specifications guaranteed across this range per Tables 5–8. It meets AEC-Q100 stress test requirements for automotive grade 1 (–40°C to +125°C) and is widely deployed in body control modules and instrument clusters where thermal resilience is critical.