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74LS147 데이터시트(PDF) 2 Page - Motorola, Inc |
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74LS147 데이터시트(HTML) 2 Page - Motorola, Inc |
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2 / 7 page ![]() 5-246 FAST AND LS TTL DATA SN54/74LS147 • SN54/74LS148 • SN54/74LS748 SN54 / 74LS147 FUNCTION TABLE INPUTS OUTPUTS 1 2 3 4 5 6 7 8 9 D C B A H H H H H H H H H H H H H X X X X X X X X L L H H L X X X X X X X L H L H H H X X X X X X L H H H L L L X X X X X L H H H H L L H X X X X L H H H H H L H L X X X L H H H H H H L H H X X L H H H H H H H H L L X L H H H H H H H H H L H L H H H H H H H H H H H L SN54 / 74LS148 SN54 / 74LS748 FUNCTION TABLE INPUTS OUTPUTS EI 0 1 2 3 4 5 6 7 A2 A1 A0 GS EO H X X X X X X X X H H H H H L H H H H H H H H H H H H L L X X X X X X X L L L L L H L X X X X X X L H L L H L H L X X X X X L H H L H L L H L X X X X L H H H L H H L H L X X X L H H H H H L L L H L X X L H H H H H H L H L H L X L H H H H H H H H L L H L L H H H H H H H H H H L H H = HIGH Logic Level, L = LOW Logic Level, X = Irrelevant FUNCTIONAL BLOCK DIAGRAMS SN54 / 74LS147 SN54 / 74LS148 1 2 3 4 5 6 7 8 9 (11) (12) (13) (1) (2) (3) (4) (5) (10) (9) (7) (6) (14) A B C D 0 1 2 3 4 5 6 7 EI (10) (11) (12) (13) (1) (2) (3) (4) (5) (15) EO (14) GS (8) A0 (7) A1 (6) A2 |
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