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DM7446A Datasheet(PDF) 1 Page - Fairchild Semiconductor |
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DM7446A Datasheet(HTML) 1 Page - Fairchild Semiconductor |
1 / 6 page © 2000 Fairchild Semiconductor Corporation DS006518 www.fairchildsemi.com September 1986 Revised February 2000 DM7446A, DM7447A BCD to 7-Segment Decoders/Drivers General Description 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-blank- ing input/output controls and a lamp test input. Segment identification and resultant displays are shown on a follow- ing page. Display patterns for BCD input counts above nine are unique symbols to authenticate input conditions. All of the circuits incorporate automatic leading and/or trail- ing-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 con- trol the lamp intensity (by pulsing) or to inhibit the outputs. Features s All circuit types feature lamp intensity modulation capa- bility s Open-collector outputs drive indicators directly s Lamp-test provision s Leading/trailing zero suppression Ordering Code: Connection Diagram Order Number Package Number Package Description DM7446AN N16E 16-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300 Wide DM7446AN N16E 16-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300 Wide |
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