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M74HC4543 Datasheet(PDF) 6 Page - STMicroelectronics |
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M74HC4543 Datasheet(HTML) 6 Page - STMicroelectronics |
6 / 12 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 30 75 95 110 ns 4.5 8 151922 6.0 7 131619 tPLH tPHL Propagation Delay Time (BCD - OUT) 2.0 160 300 375 450 ns 4.5 40 60 75 90 6.0 30 51 64 76 tPLH tPHL Propagation Delay Time (BI - OUT) 2.0 80 175 220 265 ns 4.5 23 35 44 53 6.0 17 30 37 45 tPLH tPHL Propagation Delay Time (PH - OUT) 2.0 58 130 165 195 ns 4.5 17 26 33 39 6.0 14 22 28 33 tPLH tPHL Propagation Delay Time (LD - OUT) 2.0 130 265 335 400 ns 4.5 35 53 66 80 6.0 16 45 56 68 tW(H) Minimum Pulse Width (LD) 2.0 30 75 95 110 ns 4.5 8 152922 6.0 7 132619 ts Minimum Set-up Time 2.0 15 75 95 110 ns 4.5 4 151922 6.0 3 131619 th Minimum Hold Time 2.0 0 0 0 ns 4.5 0 0 0 6.0 0 0 0 CIN Input Capacitance 5 10 10 10 pF CPD (*) Power Dissipation Capacitance 115 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/2 (per FLIP/FLOP) M54/M74HC4543 6/12 |
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