поискавой системы для электроныых деталей |
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74LVQ244 датащи(PDF) 4 Page - STMicroelectronics |
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74LVQ244 датащи(HTML) 4 Page - STMicroelectronics |
4 / 8 page CAPACITIVE CHARACTERISTICS Symb ol Parameter Test Co nditi ons Valu e Un it VCC (V) TA =25 oC -40 to 85 oC Min. T yp. Max. Mi n. Max. CIN Input Capacitance 3.3 5 pF COUT Output Capacitance 3.3 10 pF CPD Power Dissipation Capacitance (note 1) 3.3 fIN =10 MHz 15 pF 1) CPD isdefined as the value of the IC’sinternal equivalent capacitance which is calculated fromthe operating current consumption without load. (Referto Test Circuit).Average operting current can be obtained by the following equation. ICC(opr) = CPD • VCC • fIN +ICC/8(per circuit) TEST CIRCUIT T EST SW IT CH tPLH,tPHL Open tPZL,tPLZ 2VCC tPZH,tPHZ OPEN CL = 50 pF or equivalent (includes jigand probe capacitance) RL =R1 =500 Ω orequivalent RT =ZOUT of pulse generator (typically 50 Ω) AC ELECTRICAL CHARACTERISTICS (CL = 50 pF, RL = 500 Ω, Input tr =tf =3 ns) Symb ol Parameter T est Con ditio n Valu e Un it VCC (V) TA =25 oC -40 to 85 oC Min. T yp. Max. Mi n. Max. tPLH tPHL Propagation Delay Time 2.7 7 13 14 ns 3.3 (*) 69 9.5 tPZL tPZH Output Enable Time 2.7 8.5 17 18 ns 3.3 (*) 7 12 12.5 tPLZ tPHZ Output Disable Time 2.7 9 19 20 ns 3.3 (*) 7.5 13.5 14 tOSLH tOSHL Output to Output Skew Time (note 1, 2) 2.7 0.5 1.5 1.5 ns 3.3 (*) 0.5 1.5 1.5 1) Skew is defined as the absolute value of the difference between the actual propagation delay for any twooutputs of the same device switching in the same direction, either HIGH or LOW (tOSLH =|tPLHm -tPLHn|, tOSHL =|tPHLm -tpHLn|) 2) Parameter guaranteed by design (*) Voltage range is 3.3V ± 0.3V 74LVQ244 4/8 |
Аналогичный номер детали - 74LVQ244 |
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Аналогичное описание - 74LVQ244 |
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