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M54HC4040 데이터 시트보기 (PDF) - STMicroelectronics
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M54HC4040
HC4020 14 STAGE BINARY COUNTER HC4040 12 STAGE BINARY COUNTER
STMicroelectronics
M54HC4040 Datasheet PDF : 13 Pages
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M54/M74HC4020/4040
INPUT AND OUTPUT EQUIVALENT CIRCUIT
PIN DESCRIPTION
(HC4020)
PIN No
9, 7, 6, 5,
3, 2, 4, 13,
12, 14, 15,
1
10
11
8
16
SYMBOL
Q1, Q4 to
Q14
CLOCK
CLEAR
GND
V
CC
NAME AND FUNCTION
Parallel Outputs
Clock Input (LOW to
HIGH, edge triggered)
Reset Inputs
Ground (0V)
Positive Supply Voltage
IEC LOGIC SYMBOLS
HC4020
PIN DESCRIPTION
(HC4040)
PIN No
9, 7, 6, 5,
3, 2, 4, 13,
12, 14, 15,
1
10
11
8
16
SYMBOL
Q1 to Q12
CLOCK
CLEAR
GND
V
CC
NAME AND FUNCTION
Parallel Outputs
Clock Input (LOW to
HIGH, edge triggered)
Reset Inputs
Ground (0V)
Positive Supply Voltage
HC4040
TRUTH TABLE
CLOCK
X
2/13
CLEAR
H
L
L
OUTPUT STATE
ALL OUTPUTS = ”L”
NO CHANGE
ADVANCE TO NEXT STATE
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