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M54HC4040 数据表(PDF) 2 Page - STMicroelectronics

部件名 M54HC4040
功能描述  HC4020 14 STAGE BINARY COUNTER HC4040 12 STAGE BINARY COUNTER
PDF  13 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

M54HC4040 数据表(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
2/13



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