PDF DM7447A Download

Description

The DM7447A, DM7446A and 47A 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 resultant displays are shown on a following page. Display patterns for BCD input counts above nine are unique symbols to authenticate input conditions.

Features

1. All circuit types feature lamp intensity modulation capability
2. Open-collector outputs drive indicators directly
3. Lamp-test provision
4. Leading/trailing zero suppression