DM7447AN
DM7447AN Datasheet
DM7446A, DM7447A BCD to 7-Segment Decoders/Drivers
| Part | Datasheet |
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DM7447AN |
DM7447AN (pdf) |
| Related Parts | Information |
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DM7446AN |
DM7446AN |
| PDF Datasheet Preview |
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| DM7446A, DM7447A BCD to 7-Segment Decoders/Drivers DM7446A, DM7447A BCD to 7-Segment Decoders/Drivers 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 resultant displays are shown on a following 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 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. s All circuit types feature lamp intensity modulation capability s Open-collector outputs drive indicators directly s Lamp-test provision s Leading/trailing zero suppression Ordering Code: Order Number DM7446AN DM7447AN Package Number Package Description N16E 16-Lead Plastic Dual-In-Line Package PDIP , JEDEC MS-001, Wide N16E 16-Lead Plastic Dual-In-Line Package PDIP , JEDEC MS-001, Wide Connection Diagram 2001 Fairchild Semiconductor Corporation DS006518 DM7446A, DM7447A Function Table Decimal or Inputs BI/RBO Outputs Note Function LT RBI D C B A Note 1 a b c d e f g HHL L HXL L LH HL LHHHH HXL LHL L LHL HX L LHH L LHHL HXLHL L HL LHH L HX L H L H LHLLHLL HX LHHL HX LHHH L H Note 2 HXHL L HXHL LH L LHH L HXHLHL HHHL LHL HXH L HH HH L LHHL HXHH L HLHHH L |
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