IC 7447 BCD to 7 Segment Decoder Driver

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$2.95 ea

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  • Jameco Part no.: 50420
  • Manufacturer: Major Brands
  • Manufacturer no.: 7447
  • HTS code: 8542310000
  • Web Exclusive
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BCD to 7 Segment Decoder Driver


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. Display patterns for BCD input counts above nine are unique symbols to authenticate input conditions. All of the circuits incorporate automatic leading and/or trailing-edge, zero-blanking control (RBI and RBO). Lamp test (LT) of these devices may be performed at any time when the BI/RBO node is at a HIGH logic level. All types contain an overriding blanking input (BI) which can be used to control the lamp intensity (by pulsing) or to inhibit the outputs.


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

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