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M74HC195C1R Scheda tecnica(PDF) 7 Page - STMicroelectronics |
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M74HC195C1R Scheda tecnica(HTML) 7 Page - STMicroelectronics |
7 / 13 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 95 115 ns 4.5 8 151923 6.0 7 131620 tPLH tPHL Propagation Delay Time (CLOCK- Qn, QD) 2.0 48 125 155 190 ns 4.5 16 25 31 38 6.0 14 21 26 32 tPLH tPHL Propagation Delay Time (CLEAR- Qn, QD) 2.0 45 120 150 180 ns 4.5 15 24 30 36 6.0 13 20 26 31 fMAX Maximum Clock Frequency 2.0 7.6 15 6 5 MHz 4.5 38 60 30 25 6.0 45 71 35 30 tW(H) tW(L) Minimum Pulse Width (CLOCK) 2.0 20 75 95 115 ns 4.5 5 151923 6.0 4 131620 tW(L) Minimum Pulse Width (CLEAR) 2.0 20 75 95 115 ns 4.5 5 151923 6.0 4 131620 ts Minimum Set-up Time (PI) 2.0 28 75 95 115 ns 4.5 7 151923 6.0 6 131620 ts Minimum Set-up Time (J, K, S/L) 2.0 28 75 95 115 ns 4.5 7 151923 6.0 6 131620 th Minimum Hold Time 2.0 0 0 0 ns 4.5 0 0 0 6.0 0 0 0 tREM Minimum Removal Time 2.0 5 5 5 ns 4.5 5 5 5 6.0 5 5 5 CIN Input Capacitance 5 10 10 10 pF CPD (*) Power Dissipation Capacitance 72 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/M74HC195 7/13 |
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