HCF4089B View Datasheet(PDF) - STMicroelectronics
Part Name
Description
Manufacturer
HCF4089B Datasheet PDF : 11 Pages
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HCF4089B
TRUTH TABLE
INPUTS
Number of Pulses or Input Logic Level
D C B A CLOCK INH IN STR. CAS. CLEAR SET
L L L L 16
L
L
L
L
L
L L L H 16
L
L
L
L
L
L L H L 16
L
L
L
L
L
L L H H 16
L
L
L
L
L
L H L L 16
L
L
L
L
L
L H L H 16
L
L
L
L
L
L H H L 16
L
L
L
L
L
L H H H 16
L
L
L
L
L
H L L L 16
L
L
L
L
L
H L L H 16
L
L
L
L
L
H L H L 16
L
L
L
L
L
H L H H 16
L
L
L
L
L
H H L L 16
L
L
L
L
L
H H L H 16
L
L
L
L
L
H H H L 16
L
L
L
L
L
H H H H 16
L
L
L
L
L
X X X X 16
H
L
L
L
L
X X X X 16
L
H
L
L
L
X X X X 16
L
L
H
L
L
H X X X 16
L
L
L
H
L
L X X X 16
L
L
L
H
L
X X X X 16
L
L
L
L
H
X : Don’t Care
• : Depends on internal state of counter
*: Output same as the first 16 lines of this truth table (depending on values of A, B, C, D)
LOGIC DIAGRAM
OUTPUTS
Number of Pulses or Output Logic
Level
OUT
L
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
•
L
H
16
L
L
OUT
H
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
•
H
*
16
H
H
INH
OUT
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
H
1
1
H
H
L
"15"
OUT
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
•
1
1
L
L
H
3/11
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