HCF4028B Просмотр технического описания (PDF) - STMicroelectronics
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HCF4028B Datasheet PDF : 10 Pages
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HCF4028B
IINPUT EQUIVALENT CIRCUIT
FUNCTIONAL DIAGRAM
PIN DESCRIPTION
PIN No
10, 13, 12,
11
10, 13, 12
3, 14, 2, 15,
1, 6, 7, 4, 9,
5
3, 14, 2, 15,
1, 6, 7, 4
8
16
SYMBOL NAME AND FUNCTION
A, B, C, D BCD Data Inputs
A, B, C 3-Bit Binary Inputs
0 to 9
Buffered DECIMAL
Decoded Outputs
0 to 7
VSS
VDD
Buffered OCTAL Decoded
Outputs
Negative Supply Voltage
Positive Supply Voltage
TRUTH TABLE
INPUTS
OUTPUTS
D
C
B
A
0
1
2
3
4
5
6
7
8
9
L
L
L
L
H
L
L
L
L
L
L
L
L
L
L
L
L
H
L
H
L
L
L
L
L
L
L
L
L
L
H
L
L
L
H
L
L
L
L
L
L
L
L
L
H
H
L
L
L
H
L
L
L
L
L
L
L
H
L
L
L
L
L
L
H
L
L
L
L
L
L
H
L
H
L
L
L
L
L
H
L
L
L
L
L
H
H
L
L
L
L
L
L
L
H
L
L
L
L
H
H
H
L
L
L
L
L
L
L
H
L
L
H
L
L
L
L
L
L
L
L
L
L
L
H
L
H
L
L
H
L
L
L
L
L
L
L
L
L
H
H
L
H
L
L
L
L
L
L
L
L
L
L
L
H
L
H
H
L
L
L
L
L
L
L
L
L
L
H
H
L
L
L
L
L
L
L
L
L
L
L
L
H
H
L
H
L
L
L
L
L
L
L
L
L
L
H
H
H
L
L
L
L
L
L
L
L
L
L
L
H
H
H
H
L
L
L
L
L
L
L
L
L
L
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