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74ACT138 View Datasheet(PDF) - STMicroelectronics

Part Name
Description
Manufacturer
74ACT138
ST-Microelectronics
STMicroelectronics ST-Microelectronics
74ACT138 Datasheet PDF : 10 Pages
1 2 3 4 5 6 7 8 9 10
74ACT138
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
pF
CPD Power Dissipation
Capacitance (note 5.0
fIN = 10MHz
60
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 = 500or equivalent
RT = ZOUT of pulse generator (typically 50)
WAVEFORM 1: PROPAGATION DELAYS FOR INVERTING OUTPUTS (f=1MHz; 50% duty cycle)
5/10
 

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