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M74HC4028M1R 查看數據表(PDF) - STMicroelectronics

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M74HC4028M1R BCD TO DECIMAL DECODER ST-Microelectronics
STMicroelectronics ST-Microelectronics
M74HC4028M1R Datasheet PDF : 9 Pages
1 2 3 4 5 6 7 8 9
M74HC4028
INPUT AND OUTPUT EQUIVALENT CIRCUIT
PIN DESCRIPTION
PIN No
1, 2, 3, 4, 5,
6, 7, 9, 14,
15
10, 11, 12,
13
8
16
SYMBOL NAME AND FUNCTION
Y0 to Y9 Decoder Outputs
A to D
GND
VCC
Data Inputs
Ground (0V)
Positive Supply Voltage
TRUTH TABLE
INPUTS
DCBA
L
L
L
L
L
L
L
H
L
L
H
L
L
L
H
H
L
H
L
L
L
H
L
H
L
H
H
L
L
H
H
H
H
L
L
L
H
L
L
H
H
X
H
X
H
H
X
X
X : Don’t Care
LOGIC DIAGRAM
OUTPUTS
Y0 Y1 Y2 Y3 Y4 Y5 Y6 Y7 Y8 Y9
H
L
L
L
L
L
L
L
L
L
L
H
L
L
L
L
L
L
L
L
L
L
H
L
L
L
L
L
L
L
L
L
L
H
L
L
L
L
L
L
L
L
L
L
H
L
L
L
L
L
L
L
L
L
L
H
L
L
L
L
L
L
L
L
L
L
H
L
L
L
L
L
L
L
L
L
L
H
L
L
L
L
L
L
L
L
L
L
H
L
L
L
L
L
L
L
L
L
L
H
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
SELECTED
OUTPUT
Y0
Y1
Y2
Y3
Y4
Y5
Y6
Y7
Y8
Y9
NONE
NONE
This logic diagram has not be used to estimate propagation delays
2/9
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