MC14049UB

The MC14049UB is a hex inverter buffer manufactured by onsemi, designed for high-speed digital signal processing. It consists of six independent inverting buffers, each capable of driving up to 500 μA of output current at a supply voltage range of 3 V to 15 V. This wide operating voltage range makes it suitable for various power supply configurations in both low- and high-voltage systems. Each inverter within the device features a high input impedance and low output impedance, ensuring minimal loading effects on preceding stages while maintaining strong drive capability for downstream components. The propagation delay is typically less than 100 ns at 5 V supply, enabling efficient performance in timing-critical applications such as clock distribution, signal conditioning, and logic level shifting. The MC14049UB operates reliably across a broad temperature range from -55°C to +125°C, making it ideal for industrial, automotive, and military-grade applications where environmental stability is crucial. Its CMOS technology provides extremely low static power consumption—typically in the nanoampere range—which enhances energy efficiency in battery-powered or portable electronics. This component is commonly used in digital circuits requiring signal inversion without amplification, such as in microcontroller interfacing, data bus drivers, and oscillator feedback loops. It also serves well in noise-immune environments due to its robust noise margin and high immunity to electromagnetic interference (EMI), thanks to its CMOS design. The package is available in a standard 14-pin DIP (Dual In-Line Package), offering easy integration into through-hole PCB designs. The device includes built-in protection against electrostatic discharge (ESD), with human-body model ratings exceeding ±2 kV, enhancing reliability during handling and operation in harsh conditions. Its versatility allows use in consumer electronics, test equipment, industrial control systems, and communication devices where stable, low-power, and high-speed inversion is required. With consistent performance under varying load and temperature conditions, the MC14049UB remains a reliable choice for designers seeking dependable digital buffering solutions.