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M54HC4020 Fiches technique(PDF) 2 Page - STMicroelectronics

No de pièce M54HC4020
Description  HC4020 14 STAGE BINARY COUNTER HC4040 12 STAGE BINARY COUNTER
PDF  13 Pages
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Fabricant  STMICROELECTRONICS [STMicroelectronics]
Site Internet  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

M54HC4020 Fiches technique(HTML) 2 Page - STMicroelectronics

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INPUT AND OUTPUT EQUIVALENT CIRCUIT
PIN DESCRIPTION (HC4020)
PIN No
SYMBOL
NAME AND FUNCTION
9, 7, 6, 5,
3, 2, 4, 13,
12, 14, 15,
1
Q1, Q4 to
Q14
Parallel Outputs
10
CLOCK
Clock Input (LOW to
HIGH, edge triggered)
11
CLEAR
Reset Inputs
8
GND
Ground (0V)
16
VCC
Positive Supply Voltage
IEC LOGIC SYMBOLS
PIN DESCRIPTION (HC4040)
PIN No
SYMBOL
NAME AND FUNCTION
9, 7, 6, 5,
3, 2, 4, 13,
12, 14, 15,
1
Q1 to Q12
Parallel Outputs
10
CLOCK
Clock Input (LOW to
HIGH, edge triggered)
11
CLEAR
Reset Inputs
8
GND
Ground (0V)
16
VCC
Positive Supply Voltage
TRUTH TABLE
CLOCK
CLEAR
OUTPUT STATE
X
H
ALL OUTPUTS = ”L”
L
NO CHANGE
L
ADVANCE TO NEXT STATE
HC4020
HC4040
M54/M74HC4020/4040
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