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74LVQ138 Scheda tecnica(PDF) 5 Page - STMicroelectronics |
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74LVQ138 Scheda tecnica(HTML) 5 Page - STMicroelectronics |
5 / 9 page CL = 50 pF or equivalent (includes jigand probe capacitance) RL =R1 =500 Ω orequivalent RT =ZOUT of pulse generator (typically 50 Ω) 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 CPD Power Dissipation Capacitance (note 1) 3.3 fIN = 10 MHz 50 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 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 A, B, C to Y 2.7 7.0 17.0 20.0 ns 3.3 (*) 5.5 12.0 14.0 tPLH tPHL Propagation Delay Time G1 to Y 2.7 7.0 17.0 20.0 ns 3.3 (*) 5.5 12.0 14.0 tPLH tPHL Propagation Delay Time G2A or G2B to Y 2.7 7.0 17.0 20.0 ns 3.3 (*) 5.5 12.0 14.0 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 TEST CIRCUIT 74LVQ138 5/9 |
Codice articolo simile - 74LVQ138 |
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Descrizione simile - 74LVQ138 |
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