HT12D/HT12F
Encoder/Decoder cross reference table
Package
Decoders
Part No.
Data Pins
Address Pins
VT
Pair Encoder
Encoder
DIP
HT12D
HT12F
4
0
8
12
Ö
Ö
HT12A
HT12E
HT12A
HT12E
18
18
SOP
20
20
Decoder
DIP
18
18
SOP
20
20
Address/Data sequence
The following table provides address/data sequence for various models of the 2
12
series of decoders.
Part No.
HT12D
HT12F
Address/Data Bits
0
A0
A0
1
A1
A1
2
A2
A2
3
A3
A3
4
A4
A4
5
A5
A5
6
A6
A6
7
A7
A7
8
D8
A8
9
D9
A9
10
D10
A10
11
D11
A11
Oscillator frequency vs supply voltage
fo s c
(S c a le )
4 .0 0
R o s c (
9
)
2 7 k
9
3 .5 0
3 0 k
9
3 3 k
9
3 6 k
9
3 9 k
9
2 .5 0
4 3 k
9
4 7 k
9
5 1 k
9
2 .0 0
5 6 k
9
6 2 k
9
6 8 k
9
7 5 k
9
1 .5 0
8 2 k
9
1 0 0 k
9
(1 0 0 k H z )1 .0 0
1 2 0 k
9
1 5 0 k
9
1 8 0 k
9
0 .5 0
0 .2 5
2 2 0 k
9
3 .0 0
2
3
4
5
6
7
8
9
1 0
1 1
1 2
1 3
V D D
(V D C )
Note:
The recommended oscillator frequency is f
OSCD
(decoder)
@
50 f
OSCE
(HT12E encoder)
1
@
f
OSCE
(HT12A encoder).
3
Rev. 1.10
5
November 18, 2002
HOLTEK [ HOLTEK SEMICONDUCTOR INC ]
