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数据搜索系统，热门电子元器件搜索 |
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CD74ACT112 数据表(PDF) 5 Page - Texas Instruments |
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CD74ACT112 数据表(HTML) 5 Page - Texas Instruments |
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5 / 8 page  CD54AC109, CD74AC109 DUAL J-K POSITIVE-EDGE-TRIGGERED FLIP-FLOPS WITH CLEAR AND PRESET SCHS326 – JANUARY 2003 5 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 timing requirements over recommended operating free-air temperature range, VCC = 3.3 V ± 0.3 V (unless otherwise noted) –55 °C to 125 °C –40 °C to 85 °C UNIT MIN MAX MIN MAX fclock Clock frequency 71 81 MHz t Pulse duration CLK high or low 7 6 ns tw Pulse duration CLR or PRE 6.3 5.5 ns tsu Setup time, before CLK ↑ J or K 7.7 6.8 ns th Hold time, after CLK ↑ J or K 0 0 ns trec Recovery time, before CLK ↑ CLR ↑ or PRE↑ 3.5 3.1 ns timing requirements over recommended operating free-air temperature range, VCC = 5 V ± 0.5 V (unless otherwise noted) –55 °C to 125 °C –40 °C to 85 °C UNIT MIN MAX MIN MAX fclock Clock frequency 100 114 MHz t Pulse duration CLK high or low 5 4.4 ns tw Pulse duration CLR or PRE 4.5 3.9 ns tsu Setup time, before CLK ↑ J or K 5.5 4.8 ns th Hold time, after CLK ↑ J or K 0 0 ns trec Recovery time, before CLK ↑ CLR ↑ or PRE↑ 2.5 2.2 ns switching characteristics over recommended operating free-air temperature range, VCC = 1.5 V, CL = 50 pF (unless otherwise noted) (see Figure 1) PARAMETER FROM (INPUT) TO (OUTPUT) –55 °C to 125 °C –40 °C to 85 °C UNIT (INPUT) (OUTPUT) MIN MAX MIN MAX fmax 8 9 MHz tPLH CLK QQ 129 117 ns tPLH CLR or PRE Q or Q 153 139 ns tPHL CLK QorQ 129 117 ns tPHL CLR or PRE Q or Q 153 139 ns switching characteristics over recommended operating free-air temperature range, VCC = 3.3 V ± 0.3 V, CL = 50 pF (unless otherwise noted) (see Figure 1) PARAMETER FROM (INPUT) TO (OUTPUT) –55 °C to 125 °C –40 °C to 85 °C UNIT (INPUT) (OUTPUT) MIN MAX MIN MAX fmax 71 81 MHz tPLH CLK QQ 3.6 14.4 3.7 13.1 ns tPLH CLR or PRE Q or Q 4.3 17.1 4.4 15.5 ns tPHL CLK QorQ 3.6 14.4 3.7 13.1 ns tPHL CLR or PRE Q or Q 4.3 17.1 4.4 15.5 ns |
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