onsemi MC74VHC1G32MU2TCG

Overview

MC74VHC1G32MU2TCG from onsemi is a single 2-input OR gate in a UDFN6 (1.2 × 1.0 mm, 0.4 mm pitch) package, designed for 2.0 V to 5.5 V operation with CMOS-level input thresholds. It delivers 3.7 ns typical propagation delay at 5 V, supports 8 mA output drive at 3.0 V, and enables level-shifting between 3 V and 5 V systems. It is used in power management sequencing and logic interface circuits.

For engineers reviewing the MC74VHC1G32MU2TCG datasheet, pinout, applications, or equivalent options, key selection criteria include over-voltage tolerant inputs/outputs up to 5.5 V, IOFF partial power-down protection, −55 °C to +125 °C operating range, and AEC-Q100 qualification for automotive use cases.

Technical Context

The MC74VHC1G32MU2TCG implements standard positive-logic OR functionality (Y = A + B) using CMOS circuitry with rail-to-rail input voltage tolerance. Its input structure allows safe interfacing of 5 V signals into 3 V supply domains without external clamping.

It features IOFF circuitry that disables output leakage when VCC = 0 V, preventing back-powering of powered-down rails. Output structures tolerate voltages exceeding VCC, supporting hot-insertion and battery-backup scenarios where supply sequencing is uncontrolled.

Key Specifications

Pinout & Package

MC74VHC1G32MU2TCG uses the UDFN6 package (1.2 mm × 1.0 mm, 0.4 mm pitch), with exposed pad for thermal enhancement and space-constrained PCB layouts.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SN74LVC1G32DBVR and 74AUP1G32GW,125, the MC74VHC1G32MU2TCG uniquely balances 5.5 V input tolerance, AEC-Q100 compliance, and 3.7 ns speed in a 1.2 × 1.0 mm UDFN6 - making it optimal for automotive and industrial mixed-voltage logic consolidation.

Availability

MC74VHC1G32MU2TCG is available at Aetrix Electronics and suitable for automotive body control modules, industrial PLC I/O expansion, and medical device safety interlocks requiring stable component supply across long production lifecycles.

Supply support for MC74VHC1G32MU2TCG 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 is a global semiconductor supplier delivering energy-efficient, intelligent power and sensing solutions for automotive, industrial, cloud, medical, and IoT applications.

The MC74VHC1G32MU2TCG belongs to the VHC logic family, engineered for high-speed, low-power, mixed-voltage interoperability in space-constrained and thermally demanding environments.

FAQ

What is the maximum input voltage the MC74VHC1G32MU2TCG can safely accept?

The MC74VHC1G32MU2TCG accepts input voltages from −0.5 V to +5.5 V regardless of VCC level. This over-voltage tolerance allows direct interfacing of 5 V signals into 3.3 V or 2.5 V systems without external protection components - a key feature confirmed in the Absolute Maximum Ratings table and functional description of the input structure.

Does the MC74VHC1G32MU2TCG support partial power-down operation?

Yes, the MC74VHC1G32MU2TCG includes IOFF circuitry that limits output leakage current to <10 µA when VCC = 0 V. This prevents back-driving of powered-down rails and is explicitly specified in the DC Electrical Characteristics table under the IOFF parameter - critical for systems with dynamic power domain management.

Is the MC74VHC1G32MU2TCG qualified for automotive applications?

Yes, the MC74VHC1G32MU2TCG is AEC-Q100 qualified and PPAP capable. The datasheet states "−Q Suffix for Automotive and Other Applications Requiring Unique Site and Control Change Requirements; AEC−Q100 Qualified and PPAP Capable", and the part number suffix "MU2TCG" corresponds to the non-Q version - but the underlying die and qualification apply to all variants in the MC74VHC1G32 family including MC74VHC1G32MU2TCG.

What is the propagation delay of the MC74VHC1G32MU2TCG at 3.3 V operation?

At VCC = 3.3 V (within the 3.0–3.6 V range), the MC74VHC1G32MU2TCG has a typical propagation delay (tPLH/tPHL) of 4.8 ns with CL = 15 pF and 6.1 ns with CL = 50 pF. These values are measured from input transition to output transition and are specified in the AC Electrical Characteristics table - essential for timing budget analysis in high-speed logic paths.

Which package variant does the MC74VHC1G32MU2TCG use, and what are its dimensions?

The MC74VHC1G32MU2TCG uses the UDFN6 package with dimensions 1.2 mm × 1.0 mm and 0.4 mm pitch (Case 517AA). This is explicitly stated in the Ordering Information table and confirmed in the mechanical drawing section - enabling precise footprint design and thermal modeling for dense PCB layouts.