DM7446A Datasheet, National Semiconductor

s All circuit types feature lamp intensity modulation capability s Open-collector outputs drive indicators directly s Lamp-test provision s Leading/trailing zero suppress.

The DM7446A and DM7447A feature active-LOW outputs designed for driving common-anode LEDs or incandescent indicators directly. All of the circuits have full ripple-blanking input/output controls and a lamp test input. Segment identification and resul.