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74HC164 Datasheet(PDF) 5 Page - STMicroelectronics |
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74HC164 Datasheet(HTML) 5 Page - STMicroelectronics |
5 / 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 (CLOCK - Q) 2.0 57 160 200 240 ns 4.5 19 32 40 48 6.0 16 27 34 41 tPHL Propagation Delay Time (CLEAR - Q) 2.0 60 175 220 265 ns 4.5 20 35 44 53 6.0 17 30 37 45 fMAX Maximum Clock Frequency 2.0 6.2 18 5.0 4.2 MHz 4.5 31 53 25 21 6.0 37 62 30 25 tW(H) tW(L) Minimum Pulse Width (CLOCK) 2.0 24 75 95 110 ns 4.5 6 151922 6.0 5 131619 tW(L) Minimum Pulse Width (CLEAR) 2.0 40 75 95 110 ns 4.5 10 15 19 22 6.0 9 131619 ts Minimum Set-up Time (A, B - CK) 2.0 16 50 65 75 ns 4.5 4 101315 6.0 3 9 11 13 th Minimum Hold Time (A, B - CK) 2.0 5 5 5 ns 4.5 5 5 5 6.0 5 5 5 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 99 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/M74HC164 5/12 |
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