onsemi MC74VHC04D

Overview

MC74VHC04D from ON Semiconductor is a high-speed CMOS hex inverter IC designed for logic-level translation and signal inversion in 2V–5.5V digital systems. It features 3.8ns typical propagation delay at 5V, 2μA max quiescent current at 25°C, and 7V-tolerant inputs enabling 3V/5V mixed-voltage interfacing. It is used in clock buffering, data line inversion, and noise-immune digital control circuits.

For engineers reviewing the MC74VHC04D datasheet, pinout, applications, or equivalent options, key selection criteria include supply voltage range (2–5.5V), input overvoltage tolerance (up to 7V), propagation delay consistency across all six inverters, noise immunity (28% VCC), and SOIC-14 package compatibility with legacy TTL and CMOS logic families.

Technical Context

The MC74VHC04D implements six independent CMOS inverter stages, each with a three-stage internal buffer architecture that enhances noise immunity and ensures stable output transitions. Its input structure tolerates voltages up to 7V regardless of VCC, supporting robust level-shifting between 3V and 5V domains without external components.

It operates across −40°C to +85°C with guaranteed DC performance including VIH = 0.7×VCC (min), VIL = 0.3×VCC (max), VOL = 0.44V (max at 8mA sink), and VOH = 3.80V (min at 8mA source) at VCC = 4.5V - confirming rail-to-rail-compatible output drive within its specified supply range.

Key Specifications

Pinout & Package

Dual-in-line SOIC-14 package (Case 751A-03), 8.55–8.75 mm × 3.80–4.00 mm body, 1.27 mm pitch, gull-wing leads, Pb-free compliant.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar hex inverter applications.

Compared with SN74LVC04APW and 74HC04D, the MC74VHC04D uniquely combines 7V input tolerance, sub-4ns speed at 5V, and <2μA quiescent current - making it optimal for mixed-voltage, low-power, and noise-resilient industrial interfaces where both performance and robustness are non-negotiable.

Availability

MC74VHC04D is available at Aetrix Electronics and suitable for industrial automation, automotive body electronics, and medical device logic interfacing requiring stable component supply, long-term lifecycle support, and Pb-free compliance.

Supply support for MC74VHC04D 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

ON Semiconductor is a global semiconductor manufacturer specializing in energy-efficient power management, analog, logic, and sensor solutions for automotive, industrial, and communications markets.

The MC74VHC04D belongs to the VHC (Very High Speed CMOS) logic family, engineered to deliver TTL-compatible speed with CMOS power efficiency - specifically targeting mixed-voltage digital systems needing reliable, low-skew signal inversion.

FAQ

What is the maximum input voltage the MC74VHC04D can tolerate?

The MC74VHC04D supports DC input voltages from −0.5V to +7.0V, independent of VCC. This 7V tolerance allows direct connection of 5V logic outputs to a 3V-powered MC74VHC04D without external level-shifting components, simplifying mixed-voltage system design while maintaining reliability.

Does the MC74VHC04D require external pull-up or pull-down resistors on unused inputs?

Yes - unused inputs on the MC74VHC04D must be tied to a valid logic level (GND or VCC) to prevent floating states that could cause excessive current draw, oscillation, or increased EMI. The datasheet explicitly mandates this; leaving inputs unconnected violates recommended operating conditions and risks functional instability.

Is the MC74VHC04D pin-compatible with the older 74LS04 TTL inverter?

The MC74VHC04D is functionally and pin-compatible with the 74LS04, sharing identical SOIC-14 pinout and inverter logic behavior. However, it is not electrically compatible with TTL input thresholds - its CMOS inputs require VIH ≥ 0.7×VCC and VIL ≤ 0.3×VCC, unlike TTL's fixed 2.0V/0.8V thresholds.

What is the thermal derating for the MC74VHC04D in SOIC package?

For the MC74VHC04D in SOIC-14 (D suffix), power dissipation must be derated by −7 mW/°C above 65°C ambient. At 125°C, maximum allowable PD drops to 500 mW − (60°C × 7 mW/°C) = 80 mW - requiring careful thermal design in high-temperature enclosures or sustained high-output-drive scenarios.

Can the MC74VHC04D drive a 50pF capacitive load at 10MHz without signal degradation?

Yes - the MC74VHC04D specifies tPLH/tPHL ≤ 7.5ns at VCC = 5.0V and CL = 50pF, supporting clean 10MHz square-wave inversion (100ns period). Its 8mA output drive and low output impedance ensure minimal rise/fall time degradation, provided PCB trace capacitance is included in the 50pF total load.