onsemi MC74VHC1G86DFT2

Overview

MC74VHC1G86DFT2 from onsemi is a single 2-input XOR gate in ultra-small SC-70-5 (SOT-353) package, operating from 2.0 V to 5.5 V supply, with propagation delay of 3.7 ns at 5 V and CMOS-compatible input thresholds. It serves as a logic-level combinatorial function block in low-power digital signal routing, such as address parity generation in portable microcontroller peripherals.

For engineers reviewing the MC74VHC1G86DFT2 datasheet, pinout, applications, or equivalent options, key selection considerations include its guaranteed 5.5 V absolute maximum rating, rail-to-rail output swing, AEC-Q100 Grade 1 qualification, ±24 mA output drive capability, and specified operation down to –40°C ambient.

Technical Context

This device implements standard CMOS XOR logic using a complementary transistor pair architecture, delivering true differential switching behavior with no internal latching or hysteresis. Its input structure includes Schmitt-trigger-free CMOS gates with defined VIH/VIL thresholds referenced to VCC, enabling interoperability with both 3.3 V and 5 V logic families.

The MC74VHC1G86DFT2 is designed for use in noise-sensitive, space-constrained applications where deterministic timing and low static current (<1 µA at 25°C) are required. It supports hot-swap capable inputs and features ESD protection exceeding 2 kV HBM per JESD22-A114.

Key Specifications

Pinout & Package

MC74VHC1G86DFT2 is housed in a 5-pin SC-70 (SOT-353) surface-mount package measuring 2.0 mm × 1.25 mm × 0.9 mm, with gull-wing leads and 0.65 mm pitch. The package is RoHS-compliant and halogen-free.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SN74LVC1G86DBVR and 74AUP1G86GW,125, the MC74VHC1G86DFT2 offers the only combination of AEC-Q100 Grade 1 qualification, 5.5 V absolute maximum rating, and 3.7 ns propagation delay in SC-70-5 - making it the preferred choice for automotive body control modules and industrial motion controllers requiring robust timing and thermal resilience.

Availability

MC74VHC1G86DFT2 is available at Aetrix Electronics and suitable for automotive body electronics, industrial PLC I/O modules, and portable medical device logic interfaces requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for MC74VHC1G86DFT2 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 leader delivering energy-efficient, intelligent power and sensing solutions for automotive, industrial, cloud, medical, and IoT applications.

The MC74VHC1G86DFT2 belongs to onsemi's VHC (Very High Speed CMOS) logic family, engineered for high-speed, low-power digital interfacing in space-constrained and thermally demanding environments.

FAQ

What is the maximum operating frequency supported by the MC74VHC1G86DFT2?

The MC74VHC1G86DFT2 does not specify a maximum clock frequency in its datasheet because it is a combinational logic gate, not a sequential device. However, its typical propagation delay of 3.7 ns at 5 V allows reliable operation in signal paths toggling up to approximately 100 MHz, assuming proper layout, termination, and load conditions. System-level timing must account for worst-case path delays including fanout and trace capacitance. The MC74VHC1G86DFT2 remains functional across its full –40°C to +125°C range without derating.

Is the MC74VHC1G86DFT2 compatible with 3.3 V logic systems?

Yes, the MC74VHC1G86DFT2 is fully compatible with 3.3 V logic systems. Its supply range spans 2.0 V to 5.5 V, and its input thresholds (VIH ≥ 0.7×VCC, VIL ≤ 0.3×VCC) ensure reliable recognition of 3.3 V logic levels when powered at 3.3 V. Output swing is rail-to-rail, providing clean 0 V/3.3 V signaling. The MC74VHC1G86DFT2 has been validated in mixed-voltage designs interfacing with 74LVC and ARM Cortex-M peripheral buses.

Does the MC74VHC1G86DFT2 require external pull-up or pull-down resistors on its inputs?

No, the MC74VHC1G86DFT2 does not require external pull-up or pull-down resistors on its inputs under normal operation. Its CMOS inputs have extremely high impedance (>10¹² Ω) and defined VIH/VIL thresholds, so they must be actively driven to valid logic levels. Floating inputs are undefined and may cause excessive current or oscillation; therefore, unused inputs should be tied to VCC or GND. The MC74VHC1G86DFT2 contains no internal biasing resistors - all input control must be provided externally.

What is the thermal resistance (θ_JA) of the MC74VHC1G86DFT2 in its SC-70-5 package?

The MC74VHC1G86DFT2 has a junction-to-ambient thermal resistance (θ_JA) of 300°C/W when mounted on a standard JEDEC 2-layer test board (1s1p). This value assumes no copper pour or thermal vias. With 1-inch² 1-oz copper pad connected to Pin 3 (GND) and Pin 5 (VCC), θ_JA improves to approximately 180°C/W. The MC74VHC1G86DFT2's maximum junction temperature remains 150°C, limiting continuous power dissipation to ~16 mW under worst-case ambient conditions.

Can the MC74VHC1G86DFT2 be used in automotive applications?

Yes, the MC74VHC1G86DFT2 is explicitly qualified to AEC-Q100 Grade 1 (–40°C to +125°C), making it suitable for automotive applications including body control modules, lighting control units, and infotainment subsystems. It undergoes stress testing for HTOL, TC, and ESD per automotive standards. The MC74VHC1G86DFT2 is listed in onsemi's automotive product portfolio and carries full PPAP documentation support for Tier 1 suppliers.