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CD54AC163 Datasheet(PDF) 8 Page - Texas Instruments |
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CD54AC163 Datasheet(HTML) 8 Page - Texas Instruments |
8 / 19 page CD54AC163, CD74AC163 4-BIT SYNCHRONOUS BINARY COUNTERS SCHS299B – APRIL 2000 – REVISED MARCH 2003 8 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 timing requirements over recommended operating free-air temperature range (unless otherwise noted) VCC –55 °C to 125 °C –40 °C to 85 °C UNIT CC MIN MAX MIN MAX 1.5 V 7 8 fclock Clock frequency 3.3 V ± 0.3 V 64 73 MHz 5 V ± 0.5 V 90 103 1.5 V 69 61 tw Pulse duration CLK high or low 3.3 V ± 0.3 V 7.7 6.8 ns 5 V ± 0.5 V 5.5 4.8 ↑ 1.5 V 63 55 ↑ A, B, C, or D 3.3 V ± 0.3 V 7 6.1 ↑ 5 V ± 0.5 V 5 4.4 ↑ 1.5 V 63 55 ↑ ENP or ENT 3.3 V ± 0.3 V 9.6 8.2 t Setup time before CLK ↑ 5 V ± 0.5 V 5 4.4 ns tsu Setup time, before CLK ↑ 1.5 V 75 66 ns LOAD low 3.3 V ± 0.3 V 8.4 7.4 5 V ± 0.5 V 6 5.3 1.5 V 75 66 CLR inactive 3.3 V ± 0.3 V 8.4 7.4 5 V ± 0.5 V 6 5.3 ↑ 1.5 V 0 0 ↑ A, B, C, or D 3.3 V ± 0.3 V 0 0 ↑ 5 V ± 0.5 V 0 0 ↑ 1.5 V 0 0 ↑ ENP or ENT 3.3 V ± 0.3 V 0 0 th Hold time after CLK ↑ 5 V ± 0.5 V 0 0 ns th Hold time, after CLK ↑ 1.5 V 0 0 ns LOAD low 3.3 V ± 0.3 V 0 0 5 V ± 0.5 V 0 0 1.5 V 0 0 CLR inactive 3.3 V ± 0.3 V 0 0 5 V ± 0.5 V 0 0 |
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