M74HC390 Просмотр технического описания (PDF) - STMicroelectronics

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M74HC390

Dual decade counter

STMicroelectronics 

M74HC390

Electrical characteristics

Table 8. Capacitive characteristics

Test condition

Value

Symbol Parameter VCC

(V)

TA = 25°C

-40 to 85°C -55 to 125°C Unit

Min Typ Max Min Max Min Max

CIN

Input

capacitance

5 10

10

10 pF

Power

CPD

dissipation

capacitance

84

pF

(1)

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

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