MC74VHCT139ADTG

The MC74VHCT139ADTG from ON Semiconductor is an advanced, high-speed CMOS 2-to-4 decoder/demultiplexer. Fabricated with silicon gate CMOS technology, it achieves high speed operation comparable to Bipolar Schottky TTL devices while maintaining low CMOS power dissipation.

This device features TTL-compatible inputs and a full 5.0V CMOS level output swing. It is designed for a 2.0V to 5.5V operating range, with specific models supporting 4.5V to 5.5V. The input protection circuitry allows for overvoltage tolerance, enabling its use as a logic-level translator between different voltage domains (e.g., 3.0V to 5.0V CMOS). The MC74VHCT139A input structure provides protection when voltages up to 7.0V are applied.

Key electrical characteristics include a typical propagation delay of 5.0 ns at 5.0V, low power dissipation with a maximum quiescent current of 4 mA at 25°C, and output current capabilities of 8mA for both high and low states. It offers balanced propagation delays and low noise with a maximum VOLP of 0.8V.

The MC74VHCT139ADTG is supplied in a 16-TSSOP surface-mount package. It operates over a wide temperature range of -55°C to 125°C. The device includes power-down protection on inputs and outputs and exhibits latchup performance exceeding 300 mA. ESD protection is rated at over 2000V for the Human Body Model and over 200V for the Machine Model.