onsemi 74LVX32MTC

Overview

74LVX32MTC from onsemi is a low-voltage quad 2-input OR gate IC designed for level-translating logic interfacing between 5 V and 3.3 V systems. It operates from 2.0 V to 3.6 V, tolerates input voltages up to 6.5 V, delivers ±25 mA output drive, and features guaranteed simultaneous switching noise performance for stable operation in mixed-voltage digital circuits.

For engineers reviewing the 74LVX32MTC datasheet, pinout, applications, or equivalent options, key selection criteria include its 5.5 V-tolerant inputs, TSSOP-14 WB package, −40°C to +85°C industrial temperature range, propagation delay under 7.5 ns at 3.3 V, and dynamic threshold compliance for noise-sensitive 3.3 V logic designs.

Technical Context

The 74LVX32MTC implements four independent 2-input OR gates with CMOS-compatible inputs that accept 0–5.5 V signals while powered from a 2.0–3.6 V supply-enabling seamless 5 V-to-3.3 V voltage-level translation without external components. Its design ensures deterministic logic behavior across full operating conditions.

It guarantees simultaneous switching noise (SSN) limits and dynamic threshold performance per JEDEC standards, with propagation delays specified at 15 pF and 50 pF loads, and output skew ≤1.5 ns between any two outputs-critical for timing-critical bus or control-path applications.

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 and halide-free.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SN74LVC32APW and 74AHC32PW, the 74LVX32MTC uniquely supports 5 V input signals across its entire 2.0–3.6 V supply range-making it the only option among the three that eliminates external level shifters in mixed-voltage industrial control designs.

Availability

74LVX32MTC is available at Aetrix Electronics and suitable for industrial control logic, memory address decoding, and automotive body electronics requiring stable component supply, long-term lifecycle support, and Pb-free compliance.

Supply support for 74LVX32MTC 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 delivering energy-efficient, intelligent power and sensing solutions for automotive, industrial, cloud, medical, and IoT applications.

The LVX logic family-including the 74LVX32MTC-is engineered for low-voltage, mixed-signal interfacing with emphasis on voltage-level translation, noise immunity, and industrial reliability in space-constrained PCBs.

FAQ

What is the maximum input voltage the 74LVX32MTC can tolerate?

The 74LVX32MTC supports DC input voltages up to 6.5 V regardless of VCC level-enabling safe interfacing with 5 V logic families while powered from 2.0–3.6 V supplies. This is explicitly guaranteed in the Absolute Maximum Ratings table and confirmed across recommended operating conditions. The 74LVX32MTC maintains correct logic function and avoids latch-up or damage under these conditions.

Does the 74LVX32MTC require pull-up or pull-down resistors on unused inputs?

Yes-the 74LVX32MTC requires all unused inputs to be held HIGH or LOW; floating inputs are prohibited per Note 1 in the Recommended Operating Conditions section. Unconnected inputs may cause increased ICC, erratic output behavior, or excessive power consumption. For the 74LVX32MTC, tying unused A/B inputs to VCC or GND via 10 kΩ resistors is a standard practice to ensure deterministic operation.

What is the typical propagation delay of the 74LVX32MTC at 3.3 V?

The typical propagation delay (tPLH/tPHL) of the 74LVX32MTC is 4.4 ns at VCC = 3.3 V ±0.3 V with CL = 15 pF, and 6.9 ns with CL = 50 pF, as specified in the AC Electrical Characteristics table. These values apply across the full industrial temperature range (−40°C to +85°C), and the 74LVX32MTC guarantees maximum delays of 7.5 ns and 11.5 ns respectively-critical for timing budgeting in synchronous control logic.

Is the 74LVX32MTC pin-compatible with standard 74-series OR gates?

No-the 74LVX32MTC uses a TSSOP-14 WB package with a specific pinout optimized for low-voltage operation and noise control, differing from DIP-14 or SOIC-14 pinouts of legacy 74LS32 or 74HC32. While logic function matches, physical layout and voltage ratings differ significantly; the 74LVX32MTC is not a drop-in replacement for through-hole or older surface-mount variants without PCB redesign.

What does the "MTC" suffix indicate in 74LVX32MTC?

The "MTC" suffix in 74LVX32MTC denotes the TSSOP-14 Wide Body (WB) package per onsemi's ordering nomenclature-specifically Case 948G, Pb-free and halide-free. It distinguishes this variant from other packages such as MTCX (same package, tape-and-reel) or the obsolete SOIC-14 version. The 74LVX32MTC marking "LVX32" appears on the device body, confirming its identity and package type.