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SN74LS47D датащи(PDF) 3 Page - ON Semiconductor |
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SN74LS47D датащи(HTML) 3 Page - ON Semiconductor |
3 / 8 page TRUTH TABLE INPUTS OUTPUTS SN74LS47 http://onsemi.com 3 14 15 LOGIC DIAGRAM NUMERICAL DESIGNATIONS — RESULTANT DISPLAYS 0 1 2 3 4 5 6 7 8 9 10 11 12 13 INPUT BLANKING INPUT OR RIPPLE-BLANKING OUTPUT RIPPLE-BLANKING INPUT LAMP-TEST INPUT A B C D aa bb cc dd ee ff gg OUTPUT DECIMAL OR FUNCTION LT RBI D C B A BI/RBO a b c d e f g NOTE 0 H H L L L L H L L L L L L H A 1 H X L L L H H H L L H H H H A 2 H X L L H L H L L H L L H L 3 H X L L H H H L L L L H H L 4 H X L H L L H H L L H H L L 5 H X L H L H H L H L L H L L 6 H X L H H L H H H L L L L L 7 H X L H H H H L L L H H H H 8 H X H L L L H L L L L L L L 9 H X H L L H H L L L H H L L 10 H X H L H L H H H H L L H L 11 H X H L H H H H H L L H H L 12 H X H H L L H H L H H H L L 13 H X H H L H H L H H L H L L 14 H X H H H L H H H H L L L L 15 H X H H H H H H H H H H H H BI X X X X X X L H H H H H H H B RBI H L L L L L L H H H H H H H C LT L X X X X X H L L L L L L L D H = HIGH Voltage Level L = LOW Voltage Level X = Immaterial NOTES: (A) BI/RBO is wire-AND logic serving as blanking Input (BI) and/or ripple-blanking output (RBO). The blanking out (BI) must be open or held at a HIGH level when output functions 0 through 15 are desired, and ripple-blanking input (RBI) must be open or at a HIGH level if blanking of a decimal 0 is not desired. X = input may be HIGH or LOW. (B) When a LOW level is applied to the blanking input (forced condition) all segment outputs go to a LOW level regardless of the state of any other input condition. (C) When ripple-blanking input (RBI) and inputs A, B, C, and D are at LOW level, with the lamp test input at HIGH level, all segment outputs go to a HIGH level and the ripple-blanking output (RBO) goes to a LOW level (response condition). (D) When the blanking input/ripple-blanking output (BI/RBO) is open or held at a HIGH level, and a LOW level is applied to lamp test input, all segment outputs go to a LOW level. |
Аналогичный номер детали - SN74LS47D |
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Аналогичное описание - SN74LS47D |
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