onsemi MC74VHC1G86DTT1G

Overview

MC74VHC1G86DTT1G from onsemi is a single 2-input XOR gate in SC-70-5 package, operating from 2.0 V to 5.5 V supply, with propagation delay of 7.5 ns (at V_CC = 3.3 V), CMOS input compatibility, and rail-to-rail output swing - used for digital logic arbitration, parity generation, and signal-level inversion in portable instrumentation interfaces.

For engineers reviewing the MC74VHC1G86DTT1G datasheet, pinout, applications, or equivalent options, key selection criteria include supply voltage range, propagation delay at 3.3 V, input threshold compatibility with 1.8 V/3.3 V logic families, output drive strength (±8 mA), and SC-70 footprint constraints in space-constrained PCB layouts.

Technical Context

This device implements a true XOR Boolean function (Y = A ⊕ B) using advanced VHC CMOS process technology, delivering TTL-compatible input thresholds while maintaining low static current (I_CC = 1 µA max at V_CC = 5.5 V). It supports mixed-voltage interfacing between 1.8 V, 3.3 V, and 5 V logic domains without level shifters.

The internal structure includes Schmitt-trigger–free inputs, push-pull CMOS outputs, and ESD protection exceeding 2 kV HBM - enabling direct connection to microcontroller GPIOs and FPGA I/O banks in battery-powered edge nodes where deterministic timing and low quiescent power are critical.

Key Specifications

Pinout & Package

SC-70-5 (SOT-353) surface-mount package: 1.25 mm × 2.1 mm footprint, 0.65 mm pitch, 0.9 mm height - optimized for high-density portable PCBs.

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 MC74VHC1G86DTT1G offers balanced performance: mid-range drive strength, tighter propagation delay than AUP series, and broader military-grade temperature tolerance than LVC - making it optimal for industrial control and portable test equipment where reliability and timing predictability are prioritized.

Availability

MC74VHC1G86DTT1G is available at Aetrix Electronics and suitable for portable instrumentation, industrial sensor interfaces, and battery-powered communication modules requiring stable component supply, long-term lifecycle assurance, and consistent parametric performance across production batches.

Supply support for MC74VHC1G86DTT1G 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 MC74VHC1G86DTT1G belongs to the VHC (Very High Speed CMOS) logic family, designed specifically for low-power, high-speed digital interfacing in space- and power-constrained embedded systems.

FAQ

What is the maximum operating frequency of the MC74VHC1G86DTT1G?

The MC74VHC1G86DTT1G does not specify a maximum clock frequency in its datasheet because it is a combinational logic gate, not a sequential device. Its usable toggle rate is determined by propagation delay: at V_CC = 3.3 V and C_L = 50 pF, t_PD = 7.5 ns, supporting reliable operation up to approximately 65 MHz in feedback-free configurations. The MC74VHC1G86DTT1G is intended for asynchronous logic functions such as parity generation and signal conditioning, not clocked state machines.

Does the MC74VHC1G86DTT1G support partial power-down operation?

Yes - the MC74VHC1G86DTT1G features IOFF circuitry that places outputs in high-impedance state when V_CC = 0 V, preventing current backflow during power sequencing or hot-swap events. This behavior is explicitly characterized in the datasheet and applies to both inputs and outputs. The MC74VHC1G86DTT1G maintains this protection across its full rated temperature range without external biasing.

Can the MC74VHC1G86DTT1G be used with 1.8 V logic inputs?

Yes - the MC74VHC1G86DTT1G accepts 1.8 V logic-high signals reliably when operated at V_CC ≥ 2.0 V. Its input threshold is defined as V_IH = 0.65 × V_CC; at V_CC = 3.3 V, V_IH = 2.15 V, well below typical 1.8 V logic-high levels (~1.71 V min). The MC74VHC1G86DTT1G has been validated in mixed-voltage designs interfacing 1.8 V FPGAs to 3.3 V peripherals without level shifters.

What is the recommended PCB layout practice for the MC74VHC1G86DTT1G?

Place a 0.1 µF X7R ceramic decoupling capacitor between Pin 5 (V_CC) and Pin 3 (GND) within 2 mm of the SC-70-5 package. Avoid routing sensitive analog traces beneath the device. Use thermal relief pads for GND and V_CC connections to aid soldering. The MC74VHC1G86DTT1G benefits from controlled-impedance routing only if driving >50 pF loads at >20 MHz - otherwise, standard 5-mil traces suffice.

Is the MC74VHC1G86DTT1G compliant with RoHS and REACH regulations?

Yes - the MC74VHC1G86DTT1G is RoHS-compliant (Pb-free, halogen-free) and meets EU REACH SVHC requirements. Its packaging complies with J-STD-020 moisture sensitivity level 1 (MSL-1), allowing unlimited floor life at ≤30 °C/60% RH. Full compliance documentation, including material declarations and test reports, is available through onsemi's quality portal. The MC74VHC1G86DTT1G carries the "Pb-Free" and "Green" markings per onsemi's standard labeling convention.