V
V
DD
DD
V
DD
TE
V
DD
0.1
µF
0.1 µF
A1
A1
14
16
16
A2
A3
A4
A5
D6
D7
D8
D9
5
A2
A3
15
D
D
9
1
2
3
out
in
1
2
TRINARY
ADDRESSES
5
6
TRINARY
ADDRESSES
3
4
A4
A5
4
R1
MC145027
OR
SC41343
7
5
6
5
15
14
MC145026
R
TC
13
12
C
1
D6
D7
D8
D9
7
9
C
TC
4–BIT
BINARY
DATA
13
12
11
10
11
10
R
S
VT
C
8
R2
2
8
C
′ = C
100 pF ≤ C
+ C
+ 12 pF
TC
TC
layout
≤ 15 µF
1
TC
≥ 10 kΩ; R ≈ 2 R
TC
REPEAT OF ABOVE
REPEAT OF ABOVE
f
=
osc
R
R
C
R
C
2.3 R ′
C
TC
S
TC TC
≥ 10 kΩ
1
1
2
2
≥ 400 pF
≥ 100 kΩ
≥ 700 pF
R C = 3.95 R
1 1
C
TC TC
C
TC TC
R C = 77 R
2 2
Example R/C Values (All Resistors and Capacitors are ± 5%)
(C ′ = C
TC
+ 20 pF)
TC
(kHz)
f
R
C
R
R
C
R
C
2
osc
TC
TC′
S
1
1
2
362
10 k
10 k
10 k
10 k
10 k
10 k
50 k
120 pF
240 pF
490 pF
1020 pF
2020 pF
5100 pF
5100 pF
20 k
20 k
20 k
20 k
20 k
20 k
100 k
10 k
10 k
10 k
10 k
10 k
10 k
50 k
470 pF
910 pF
100 k
100 k
100 k
100 k
100 k
200 k
200 k
910 pF
1800 pF
3900 pF
7500 pF
0.015 µF
0.02 µF
0.1 µF
181
88.7
42.6
21.5
8.53
1.71
2000 pF
3900 pF
8200 pF
0.02 µF
0.02 µF
Figure 17. Typical Application
MOTOROLA
MC145026•MC145027•MC145028•SC41343•SC41344
15
MOTOROLA [ MOTOROLA ]
