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M54HC540 Datasheet(PDF) 6 Page - STMicroelectronics |
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M54HC540 Datasheet(HTML) 6 Page - STMicroelectronics |
6 / 12 page TEST CIRCUIT ICC (Opr.) HC540 AC ELECTRICAL CHARACTERISTICS (CL =50 pF, Input tr =tf =6 ns) Symbol Parameter Test Conditions Value Unit VCC (V) CL (pF) TA =25 oC 54HC and 74HC -40 to 85 oC 74HC -55 to 125 oC 54HC Min. Typ. Max. Min. Max. Min. Max. tTLH tTHL Output Transition Time 2.0 50 25 60 75 90 ns 4.5 7 121918 6.0 6 101315 tPLH tPHL Propagation Delay Time 2.0 50 40 85 105 130 ns 4.5 10 17 21 26 6.0 9 141822 2.0 150 56 115 145 175 ns 4.5 14 23 29 35 6.0 12 20 25 30 tPZL tPZH Output Enable Time 2.0 50 RL =1K Ω 47 110 140 165 ns 4.5 13 22 28 33 6.0 11 19 24 28 2.0 150 RL =1K Ω 61 135 170 205 ns 4.5 17 27 34 41 6.0 14 23 29 35 tPLZ tPHZ Output Disable Time 2.0 50 RL =1K Ω 52 110 140 165 ns 4.5 15 22 28 33 6.0 13 19 24 28 CIN Input Capacitance 5 10 10 10 pF CPD (*) Power Dissipation Capacitance 31 pF (*) CPD is defined as the value of the IC’s internal equivalent capacitance which is calculated from the operating current consumption without load. (Refer to Test Circuit). Average operting current can be obtained by the following equation. ICC(opr) = CPD •VCC •fIN +ICC/8 (per gate) M54/M74HC540/541 6/12 |
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