MC14569B ON Semiconductor, MC14569B Datasheet - Page 7

• Manufacturer Part Number: MC14569B
• Description: Programmable Divide-By-N Dual 4-Bit Binary/BCD Down Counter
• Manufacturer: ON Semiconductor

X = No Output (Always Low)
128
P7
2
0
0
0
0
0
0
0
0
0
1
1
1


















7
P6
Counter #2
64
2
0
0
0
0
0
0
0
1
1
0
0
1


















6
Binary
P5
2
32
0
0
0
0
0
0
1
0
1
0
0
1


















Table 2. Mode Controls
5
NOTE: Data Preset Inputs (P0–P7) are “Don’t Cares” while Cascade Feedback is
Preset Inputs
P4
16
2
0
0
0
0
0
1
0
0
1
0
0
1
CTL


















Low.
Counter Control Values
4
0
0
1
1
Table 1. Mode Controls (Cascade Feedback = Low)
1
P3
2
0
0
0
0
1
0
0
0
1
0
1
1
8


















3
P2
Counter #1
2
0
0
0
0
1
0
0
0
1
0
0
1
4


















2
Binary
(CTL
CTL
0
1
0
1
http://onsemi.com
P1
2
2
1
0
0
1
1
1
0
0
0
1
0
0
1
2


















1
MC14569B
= Low, CTL
P0
2
7
0
1
0
1
1
0
0
0
1
0
0
1
1


















0
Zero Detect
2
= Low, Cascade Feedback = High)
256
160
160
100
Detect
Zero
256
127
128
136
255
15
16
32
64
X
2
3


















Divide Ratio
Divide Ratio
256
128
136
255
Q
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X






256
160
160
100
Q
Q Output Active
Comments
Illegal State
Max Count
Min Count
Sequence
Counting
Bit Value