MC14040 ONSEMI [ON Semiconductor], MC14040 Datasheet - Page 5
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MC14040
Manufacturer Part Number
MC14040
Description
12-Bit Binary Counter
Manufacturer
ONSEMI [ON Semiconductor]
Datasheet
1.MC14040.pdf
(8 pages)
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TIME–BASE GENERATOR
resistor connected directly to a standard 120 Vac power line
is applied to the clock input of the MC14040B. By selecting
A 60 Hz sinewave obtained through a 1.0 Megohm
CLOCK
RESET
Q10
Q11
Q12
120 Vac
Q1
Q2
Q3
Q4
Q5
Q6
Q7
Q8
Q9
60 Hz
1
1.0 M
20 pF
2
4
C
R
MC14040B
8
APPLICATIONS INFORMATION
V
Q10
Q11
Q12
V
Q5
DD
SS
Figure 3. Timing Diagram
16
http://onsemi.com
MC14040B
32
5
64
outputs Q5, Q10, Q11, and Q12 division by 3600 is
accomplished. The MC14012B decodes the counter
outputs, produces a single output pulse, and resets the binary
counter. The resulting output frequency is 1.0 pulse/minute.
MC14012B
1/2
128
256
512
MC14012B
1/2
1024
1.0 PULSE/MINUTE
2048
OUTPUT
4096