HCF40110B 查看數據表（PDF） - STMicroelectronics
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HCF40110B Datasheet PDF : 10 Pages
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HCF40110B
TRUTH TABLES
CLOCK
UP*
CLOCK
DOWN*
LATCH TOGGLE
ENABLE ENABLE
RESET
COUNTER
DISPLAY
X
L
L
L
Increments by 1
Follows Counter
X
L
L
L
Decrements by 1
Follows Counter
X
X
L
X
X
X
X
H
X
X
X
H
L
X
H
L
L
No Change
Goes to 00000
Inhibited
Increments by 1
No Change
Follow Counter (Display = 0)
Remains Fixed
Remains Fixed
X
H
L
L
Decrements by 1
Remains Fixed
X : Don’t Care
* : Typically 100 ns between clock-up and clock-down positive transitions are required to ensure proper counting
LOGIC DIAGRAM
3/10
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