7447 TTL BCD—7段高有效译码 驱动器.pdf

D September 1986 M 7 Revised February 2000 4 4 6 A , DM7446A, DM7447A D M 7 BCD to 7-Segment Decoders/Drivers 4 4 7 General Description Features A The DM7446A and DM7447A feature active-LOW outputs All circuit types feature lamp intensity modulation capa- B designed for driving common-anode LEDs or incandescent bility C