Function : HD74HC147 / 10-to-4-line Priority Encoder / Hitachi
Maker : Hitachi -> Renesas Electronics
The HD74HC147 features priority encoding of the inputs to ensure that only the highest order data line is encoded. Nine input lines are encoded to a four line BCD output. The implied decimal zero codition requires no input condition as zero is encoded when all nine data lines are at a high logic level. All data inputs and outputs are active at the low logic level.
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