74HC147 Priority Encoder IC

The 74HC147 is a high-speed CMOS 10-to-4 line priority encoder IC in a DIP-16 package. It converts active LOW decimal inputs into a 4-bit binary code, assigning priority to the highest-numbered active input. This makes it ideal for applications where multiple input signals need to be encoded with priority, such as keypads, control panels, and digital selection systems.

The IC features TTL-compatible inputs and outputs, allowing easy interfacing with microcontrollers, digital logic circuits, and other 74-series ICs. Its low power consumption, fast switching speed, and stable operation make it suitable for both learning environments and professional electronics projects.

Common uses include keypad encoders, data selectors, control systems, and digital signal routing. With its compact DIP-16 form factor, the 74HC147 is breadboard-friendly and perfect for quick prototyping or integration into custom PCBs.