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UT54ACS191 数据表(PDF) 2 Page - Aeroflex Circuit Technology |
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UT54ACS191 数据表(HTML) 2 Page - Aeroflex Circuit Technology |
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2 / 10 page ![]() 2 FUNCTION TABLE LOGIC SYMBOL LOGIC DIAGRAM FUNCTION LOAD CTEN D/U CLK Count Up H L L ↑ Count Down H L H ↑ Asynchronous Reset L X X X No Change H H X X (4) CTEN (5) D/U M3 (UP) G1 CTRDIV 16 (14) CLK (15) A (1) B (10) C (9) D (12) MAX/MIN (3) QA (7) QD 1,2 -/1,3+ (6) QC (2) QB 5D (1) (2) (4) (8) 2(CT=0)Z6 M2 (DWN) G4 3(CT=9)Z6 (11) LOAD C5 (13) RCO 6,1,4 ±7 Note: 1. Logic symbol in accordance with ANSI/IEEE standard 91-1984 and IEC Publication 617-12. CLK D/U CTEN LOAD (11) (9) (10) (1) (4) S R 1J C1 1K (7) (6) (2) (3) (13) (12) QD QC QB QA MAX/MIN RCO A B C D (15) (5) (14) S R 1J C1 1K S R 1J C1 1K R 1J C1 1K S Q Q Q Q Q Q Q Q |
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