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M54HC7645C1R Datasheet(PDF) 5 Page - STMicroelectronics |
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M54HC7645C1R Datasheet(HTML) 5 Page - STMicroelectronics |
5 / 10 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. tTLH tTHL Output Transition Time 2.0 25 60 75 90 ns 4.5 7 121518 6.0 6 101315 tPLH tPHL Propagation Delay Time 2.0 61 125 156 190 ns 4.5 15 25 31 38 6.0 13 21 27 32 tPZL tPZH Output Enable Time 2.0 RL =1 K Ω 77 150 188 225 ns 4.5 19 30 38 45 6.0 16 26 32 38 tPLZ tPHZ Output Disable Time 2.0 RL =1 K Ω 84 150 188 225 ns 4.5 21 30 38 45 6.0 18 26 32 38 CIN Input Capacitance 5 10 10 10 pF COUT Output Capacitance pF CPD (*) Power Dissipation Capacitance 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/4 (per Gate) SWITCHING CHARACTERISTICS TEST WAVEFORM VCC VCC GND GND M54/M74HC7245/ 7640/7643/7645 5/10 |
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