74ACT299 データシートの表示（PDF） - STMicroelectronics
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74ACT299 Datasheet PDF : 13 Pages
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74ACT299
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 10
10
10 pF
CI/O I/O Capacitance
5.0
13
pF
CPD Power Dissipation
Capacitance (note 5.0
fIN = 10MHz
160
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
TEST
tPLH, tPHL
tPZL, tPLZ
tPZH, tPHZ
CL = 50pF or equivalent (includes jig and probe capacitance)
RL = R1 = 500Ω or equivalent
RT = ZOUT of pulse generator (typically 50Ω)
SWIT CH
Open
2VCC
Open
7/13
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