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M74HCT7259 データシート(PDF) 5 Page - STMicroelectronics |
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M74HCT7259 データシート(HTML) 5 Page - STMicroelectronics |
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5 / 11 page ![]() AC ELECTRICAL CHARACTERISTICS (CL = 50 pF, Input tr =tf = 6 ns) Symb ol Parameter T est Cond ition s Valu e Un it VCC (V) CL (pF) RL (K Ω) TA =25 oC -40 to 85 oC Min. T yp. Max. Mi n. Max. tTLH Output Transition Time 3.3 (*) 50 1 18 ns 4.5 50 1 3 6 9 tPLZ tPZL Propagation Delay Time (DATA - Q) 3.3 (*) 50 1 80 ns 3.3 (*) 150 1 92 4.5 50 1 20 31 39 4.5 150 1 24 37 46 tPLZ tPZL Propagation Delay Time (A, B, C - Q) 3.3 (*) 50 1 98 ns 3.3 (*) 150 1 112 4.5 50 1 25 39 49 4.5 150 1 29 45 56 tPLZ tPZL Propagation Delay Time (ENABLE - Q) 3.3 (*) 50 1 82 ns 3.3 (*) 150 1 98 4.5 50 1 21 33 41 4.5 150 1 25 39 49 tPLZ tPZL Propagation Delay Time (CLEAR - Q) 3.3 (*) 50 1 76 ns 3.3 (*) 150 1 90 4.5 50 1 19 30 38 4.5 150 1 23 36 45 tW(L) Minimum Pulse Width (CLEAR) 3.3 (*) 50 1 38 ns 4.5 50 1 7 15 19 tW(L) Minimum Pulse Width (ENABLE) 3.3 (*) 50 1 38 ns 4.5 50 1 7 15 19 ts Minimum Set-Up Time 3.3 (*) 50 1 26 ns 4.5 50 1 4 10 13 th Minimum Hold Time 3.3 (*) 50 1 10 ns 4.5 50 1 5 5 CIN Input Capacitance 5 10 10 pF CPD (**) Power Dissipation Capacitance 96 pF (*) Voltage Range is 3.3V ±5% (**) CPD is defined as the value of theIC’s internal equivalent capacitance which is calculated from the operating current consumption without load. (Refer toTest Circuit). Average operting current can be obtained by the following equation. ICC(opr) = CPD • VCC • fIN +ICC M74HCT7259 5/11 |
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