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SN74AS879 Datasheet(PDF) 2 Page - Texas Instruments |
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SN74AS879 Datasheet(HTML) 2 Page - Texas Instruments |
2 / 8 page SN54ALS878A, SN54ALS879A, SN54AS878, SN54AS879 SN74ALS878A, SN74ALS879A, SN74AS878, SN74AS879 DUAL 4BIT DTYPE EDGETRIGGERED FLIPFLOPS WITH 3STATE OUTPUTS SDAS062A − D2661, APRIL 1982 − REVISED MAY 1986 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 POST OFFICE BOX 1443 • HOUSTON, TEXAS 77001 2 FUNCTION TABLES INPUTS OUTPUT Q L H H H X ’ALS878A, ’AS878 (each flip-flop) CLR CLK D ↑ ↑ ↑ L X X H L X X L H L Q0 Z OC L L L L H INPUTS OUTPUT Q L H H H X ’ALS879A, ’AS879 (each flip-flop) CLR CLK D ↑ ↑ ↑ L X X H L X X H L H Q0 Z OC L L L L H logic symbols † 1OC 2 23 EN C1 1 1CLR 3 1D1 4 1D2 5 1D3 6 1D4 2OC 11 2CLK 14 2CLR 13 2D1 7 2D2 8 2D3 9 2D4 10 1CLK 1R 1D ’ALS878A, ’AS878 EN C1 1R 1D 1Q1 22 21 1Q2 20 1Q3 19 1Q4 18 2Q1 17 2Q2 16 2Q3 15 2Q4 ’ALS879A, ’AS879 1OC 2 23 EN C1 1 1CLR 3 1D1 4 1D2 5 1D3 6 1D4 2OC 11 2CLK 14 2CLR 13 2D1 7 2D2 8 2D3 9 2D4 10 1CLK 1R 1D EN C1 1R 1D 1Q1 22 21 1Q2 20 1Q3 19 1Q4 18 2Q1 17 2Q2 16 2Q3 15 2Q4 † These symbols are in accordance with ANSI/IEEE Std 91-1984 and IEC Publication 617-12. Pin numbers shown are for DW, JT, and NT packages. |
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