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M74HCTXXXB1R Datasheet(PDF) 6 Page - STMicroelectronics |
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M74HCTXXXB1R Datasheet(HTML) 6 Page - STMicroelectronics |
6 / 13 page AC ELECTRICAL CHARACTERISTICS (CL =50 pF, Input tr =tf =6 ns) Symbol Parameter Test Conditions Value Unit VCC (V) CL (pF) 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 4.5 50 7 12 15 18 ns tPLH tPHL Propagation Delay Time (LE - Q, Q) 4.5 50 21 33 41 50 ns 4.5 150 25 39 49 59 ns tPLH tPHL Propagation Delay Time (D - Q, Q) 4.5 50 19 30 38 45 ns 4.5 150 23 36 45 54 ns tPZL tPZH 3 State Output Enable Time 4.5 50 RL =1 K Ω 19 30 38 45 ns 4.5 150 RL =1 K Ω 23 36 45 54 ns tPZL tPZH 3 State Output Disable Time 4.5 50 RL =1 K Ω 18 25 31 38 ns tW(L) tW(H) Minimum Pulse Width (LE) 4.5 50 7 15 19 22 ns ts Minimum Set-up Time 4.5 50 4 10 13 15 ns th Minimum Hold Time 4.5 50 5 5 5 ns CIN Input Capacitance 5 10 10 10 pF COUT Output Capacitance 10 pF CPD (*) Power Dissipation Capacitance 51 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/8 (per Flip-Flop) M54/M74HCT563/573 6/13 |
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