74HC151Y 查看數據表（PDF） - STMicroelectronics

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74HC151Y

8-channel multiplexer

STMicroelectronics 

M74HC151

Electrical characteristics

Table 8: Capacitive characteristics

Symbol Parameter

CIN

Input

capacitance

Power

CPD dissipation

capacitance(1)

Test

condition

VCC (V)

5.0

5.0

TA = 25°C

Min. Typ. Max.

Value

-40 to 85°C

Min. Max.

-55 to 125°C

Min. Max.

5

10

10

10

63

Unit

pF

pF

Notes:

(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 the test circuit). The average operating current

can be obtained by the following equation: ICC(opr) = CPD x VCC x fIN + ICC

Figure 4: Test circuit

VCC

PULSE

GENERATOR

D.U.T.

R

1

T

C

2

L

1. RT = ZOUT of pulse generator (typically 50 ohm)

2. CL = 50 pF or equivalent (includes jig and probe capacitance)

DocID001904 Rev 2

11/17

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