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M54HC160 датащи(PDF) 10 Page - STMicroelectronics |
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M54HC160 датащи(HTML) 10 Page - STMicroelectronics |
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10 / 16 page ![]() AC ELECTRICAL CHARACTERISTICS (CL =50 pF, Input tr =tf =6 ns) Symbol Parameter Test Conditions Value Unit VCC (V) TA =25 oC 54HC and 74HC -40 to 85 oC 74HC -55 to 125 oC 54HC Min. Typ. Max. Min. Max. Min. Max. th Minimum Hold Time (A, B - CK) 2.0 0 0 0 ns 4.5 0 0 0 6.0 0 0 0 tREM Minimum Removal Time 2.0 18 50 65 75 ns 4.5 4 101315 6.0 3 9 11 13 CIN Input Capacitance 5 10 10 10 pF CPD (*) Power Dissipation Capacitance 50 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 SWITCHING CHARACTERISTICS TEST WAVEFORM COUNT MODE CLEAR MODE (HC160/161) PRESET MODE CLEAR MODE (HC162/163) M54/M74HC160/161/162/163 10/16 |
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