HD74HC669 Hitachi Semiconductor, HD74HC669 Datasheet - Page 7
HD74HC669
Manufacturer Part Number
HD74HC669
Description
Synchronous UP/Down Decade/4-bit binary Counter
Manufacturer
Hitachi Semiconductor
Datasheet
1.HD74HC669.pdf
(14 pages)
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HD74HC669
Data
inputs
Clock
P and T
U/D
Load
Ripple
carry
output
A
B
C
D
Q
Q
Q
Q
C
D
A
B
Load
13
14
15
Count up
0
1
2
Inhibit
2
2
HD74HC668/HD74HC669
1
0
Count down
15
14
13
7
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