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Part Name
Description
HT12E(2003) View Datasheet(PDF) - Holtek Semiconductor
Part Name
Description
Manufacturer
HT12E
(Rev.:2003)
212 Series of Encoders
Holtek Semiconductor
HT12E Datasheet PDF : 14 Pages
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Oscillator Frequency vs. Supply Voltage
f
O S C
(S c a le )
7 .0 0
6 .0 0
5 .0 0
4 .0 0
(3 k H z )3 .0 0
2 .0 0
1 .0 0
HT12A/HT12E
R
O S C
(
W
)
470k
510k
560k
620k
680k
750k
820k
910k
1 .0 M
1 .2 M
1 .5 M
2 .0 M
2
3
4
5
6
7
8
9
10
11
12
1 3
V
D D
(V D C )
The recommended oscillator frequency is f
OSCD
(decoder)
@
50 f
OSCE
(HT12E encoder)
@
1
3
f
OSCE
(HT12A
encoder)
Application Circuits
V
DD
100
W
1
A0
2
A1
3
A2
V D D
18
D O U T
17 10k
W
X 1
16 455K
8050
100p.
4
A3
5
A4
6
A5
7
A6
8
A7
9
VSS
X 2
15
L /M B
1 4
D 11
13
D 10
12
D 9
11
D 8
10
10M
W
100p.
H T12A
T r a n s m itte r C ir c u it
1
A0
2
A1
3
A2
4
A3
5
A4
6
A5
7
A6
8
A7
9
VSS
V
DD
V D D
18
D O U T
17
O S C 1
16
O S C 2
15 R
OSC
TE
14
A D 11
13
A D 10
12
A D 9
11
A D 8
10
H T12E
Rev. 1.10
9
January 24, 2003
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