74ls147 Pin diagram and function truth table priority encoder is when multiple inputs have signals at the same time, the circuit only encodes the input signal with the highest priority level.
The commonly used integrated priority encoder IC has two types: 10-4-wire and 8-3-wire. The common models of the 10-wire to 4-wire priority encoder are 54\/7414754\/74LS147, and the common models of the 8-wire to 3-wire priority encoder are 54\/74148 and 54\/74LS148
The 74hc147 chip is a 10-wire to 4-wire priority encoder for the high-speed cmos series. It is characterized by input priority coding to ensure that the highest bit data line is prioritized coding, and nine input lines are encoded as four-wire BCD output. When all nine data lines are high power, the decimal 0 is encoded, and there is no need to set the 0 input terminal separately. All data inputs and outputs are valid at low voltages.