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M54HC161K Fiches technique(PDF) 7 Page - STMicroelectronics

No de pièce M54HC161K
Description  RAD-HARD SYNCHRONOUS PRESETTABLE 4-BIT COUNTER
PDF  12 Pages
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Fabricant  STMICROELECTRONICS [STMicroelectronics]
Site Internet  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

M54HC161K Fiches technique(HTML) 7 Page - STMicroelectronics

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CAPACITIVE CHARACTERISTICS
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 xVCC xfIN +ICC
TEST CIRCUIT
CL = 50pF or equivalent (includes jig and probe capacitance)
RT =ZOUT of pulse generator (typically 50Ω)
WAVEFORM 1: PROPAGATION DELAY TIMES, CLOCK MINIMUM PULSE WIDTH
(f=1MHz; 50% duty cycle)
Symbol
Parameter
Test Condition
Value
Unit
VCC
(V)
TA = 25°C
-40 to 85°C
-55 to 125°C
Min.
Typ.
Max.
Min.
Max.
Min.
Max.
CIN
Input Capacitance
5.0
5
10
10
10
pF
CPD
Power Dissipation
Capacitance (note
1)
5.0
50
pF



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