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M74HC377 Datasheet(PDF) 5 Page - STMicroelectronics |
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M74HC377 Datasheet(HTML) 5 Page - STMicroelectronics |
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5 / 11 page ![]() M74HC377 5/11 AC ELECTRICAL CHARACTERISTICS (CL = 50 pF, Input tr = tf = 6ns) CAPACITIVE CHARACTERISTICS 1) 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 operating current can be obtained by the following equation. ICC(opr) = CPD x VCC x fIN + ICC Symbol Parameter Test Condition Value Unit VCC (V) TA = 25°C -40 to 85°C -55 to 125°C 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 57 140 175 210 ns 4.5 17 28 35 42 6.0 13 24 30 36 fMAX Maximum Clock Frequency 2.0 7.2 14 5.8 4.8 MHz 4.5 36 56 29 24 6.0 42 66 34 28 tW(H) tW(L) Minimum Pulse Width (CLOCK) 2.0 24 75 95 115 ns 4.5 6 151923 6.0 5 131620 ts Minimum Set-up Time (D - CK) 2.0 24 75 95 115 ns 4.5 6 151923 6.0 5 131620 ts Minimum Set-up Time (G - CK) 2.0 30 75 95 115 ns 4.5 8 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 Symbol Parameter Test Condition Value Unit VCC (V) TA = 25°C -40 to 85°C -55 to 125°C Min. Typ. Max. Min. Max. Min. Max. CIN Input Capacitance 5.0 5 101010 pF CPD Power Dissipation Capacitance (note 1) 5.0 34 pF |
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