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SN54ALS190 Datasheet(PDF) 2 Page - Texas Instruments |
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SN54ALS190 Datasheet(HTML) 2 Page - Texas Instruments |
2 / 8 page SN54ALS190, SN54ALS190 SYNCHRONOUS 4-BIT UP/DOWN DECADE COUNTERS SDAS210 – D2661, DECEMBER 1982 – REVISED MAY 1986 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 2 ’ALS190 logic symbol† A B 13 RCO 3(CT=9)Z6 C5 [8] [4] [2] [1] 1,5D 1,2–/1,3+ G4 M3 (UP) M2 (DOWN) G1 7 QD 6 QC 2 QB 3 QA MAX/MIN 12 2(CT=0)Z6 CTRDIV10 9 D 10 C 1 15 11 LOAD 14 CLK 4 CTEN D/U 5 6,1,4 ’ALS190 logic diagram (positive logic) CTEN D/U CLK LOAD A B C 10 9 1 15 11 14 5 4 12 MAX/MIN 13 RCO 1D S R QD 7 C1 1D S R QC 6 C1 C1 2 QB R S 1D 1D S R QA 3 C1 D † This symbol is in accordance with ANSI/IEEE Std 91-1984 and IEC Publication 617-12. Pin numbers shown are for D, J, and N packages. |
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