74ACT158B 데이터 시트보기 (PDF) - STMicroelectronics

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74ACT158B

QUAD 2 CHANNEL MULTIPLEXER (INV.)

STMicroelectronics 

74ACT158

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 5.0

4.5

pF

CPD Power Dissipation

Capacitance (note 5.0

fIN = 10MHz

37

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/n (per circuit)

TEST CIRCUIT

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

RL = R1 = 500Ω or equivalent

RT = ZOUT of pulse generator (typically 50Ω)

5/10

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