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M74HC42 Datasheet(PDF) 4 Page - STMicroelectronics |
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M74HC42 Datasheet(HTML) 4 Page - STMicroelectronics |
4 / 10 page DC SPECIFICATIONS 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. VIH High Level Input Voltage 2.0 1.5 1.5 1.5 V 4.5 3.15 3.15 3.15 6.0 4.2 4.2 4.2 VIL Low Level Input Voltage 2.0 0.5 0.5 0.5 V 4.5 1.35 1.35 1.35 6.0 1.8 1.8 1.8 VOH High Level Output Voltage 2.0 VI = VIH or VIL IO=-20 µA 1.9 2.0 1.9 1.9 V 4.5 4.4 4.5 4.4 4.4 6.0 5.9 6.0 5.9 5.9 4.5 IO=-4.0 mA 4.18 4.31 4.13 4.10 6.0 IO=-5.2 mA 5.68 5.8 5.63 5.60 VOL Low Level Output Voltage 2.0 VI = VIH or VIL IO=20 µA 0.0 0.1 0.1 0.1 V 4.5 0.0 0.1 0.1 0.1 6.0 0.0 0.1 0.1 0.1 4.5 IO= 4.0 mA 0.17 0.26 0.33 0.40 6.0 IO= 5.2 mA 0.18 0.26 0.33 0.40 II Input Leakage Current 6.0 VI =VCC or GND ±0.1 ±1 ±1 µA ICC Quiescent Supply Current 6.0 VI =VCC or GND 4 40 80 µA 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. tTLH tTHL Output Transition Time 2.0 30 75 95 110 ns 4.5 8 151922 6.0 7 131619 tPLH tPHL Propagation Delay Time 2.0 64 130 165 195 ns 4.5 16 26 33 39 6.0 14 22 28 33 CIN Input Capacitance 5 10 10 10 pF CPD (*) Power Dissipation Capacitance 60 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 M54/M74HC42 4/10 |
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