14029BG 查看數據表（PDF） - ON Semiconductor
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14029BG Datasheet PDF : 8 Pages
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MC14029B
TIMING DIAGRAM
CLOCK
CARRY IN
UP/DOWN
BINARY/DECADE
PE
P0
P1
P2
P3
Q0
Q1
Q2
Q3
CARRY OUT
COUNT 0 1 2 3 4 5 6 7 8 9 8 7 6 5 4 3 2 1 0 0 9 6 7 0
Cout
U/D
B/D
P3
Q3 Q2 Q1 Q0
MC14029B Cin
MSD
PE
P2 P1 P0 CLK
INPUT
CLOCK
1" VDD
Cout
U/D
B/D
P3
Q3 Q2 Q1 Q0
Cin
MC14029B
PE
P2 P1 P0 CLK
2"
VDD
Cout
U/D
B/D
P3
Q3 Q2 Q1 Q0
MC14029B Cin
LSD
PE
P2 P1 P0 CLK
3" VDD VDD
CLOCK
Cout 1 (LSD)
Cout 2
Cout 3 (MSD)
PE
COUNT
*tW ^ 900 ns @ VDD = 5 V
Figure 3. Divide by N BCD Down Counter and Timing Diagram
(Shown for N = 123)
http://onsemi.com
5
OUTPUT
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