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MOTOROLA
SEMICONDUCTOR TECHNICAL DATA
Decimal-to-BCD Encoder High–Performance Silicon–Gate CMOS
The MC74HC147 is identical in pinout to the LS147. The device inputs are compatible with standard CMOS outputs; with pullup resistors, they are compatible with LSTTL outputs. This device encodes nine active–low data inputs to four active–low BCD Address Outputs, ensuring that only the highest order active data line is encoded. The implied decimal zero condition is encoded when all nine data inputs are at a high level (inactive).
MC74HC147 Datasheet
