HT600/680/6207
3
18
Series of Encoders
Features
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Operating voltage: 2.4V~12V
Low power and high noise immunity CMOS
technology
Low standby current
Three words transmission
Built-in oscillator needs only 5% resistor
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Easy interface with an RF or infrared trans-
mission media
Minimal external components
Package information: refer to Selection
Table
Applications
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Burglar alarm system
Smoke and fire alarm system
Garage door controllers
Car door controllers
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Car alarm system
Security system
Cordless telephones
Other remote control systems
General Description
The 3
18
encoders are a series of CMOS LSIs for
remote control system applications. They are
capable of encoding 18 bits of information
which consists of N address bits and 18-N data
bits. Each address/data input is externally
trinary programmable if bonded out. It is other-
wise set floating internally. Various packages of
the 3
18
encoders offer flexible combinations of
programmable address/data to meet various
application needs. The programmable ad-
dress/data is transmitted together with the
header bits via an RF or an infrared transmis-
sion medium upon receipt of a trigger signal.
The capability to select a TE trigger type or a
DATA trigger type further enhances the appli-
cation flexibility of the 3
18
series of encoders.
Selection Table
Function Address Address/
No.
Data No.
Part No.
HT600
HT680
HT6207
9
8
10
5
4
0
Data
No.
0
0
4
Dummy
Code No.
4
6
4
Oscillator
RC oscillator
RC oscillator
RC oscillator
Trigger
TE
TE
D12~D15
Package
20 DIP/SOP
18 DIP/SOP
20 DIP/SOP
Note: Address/Data represents addressable pins or data according to the decoder requirements.
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April 24, 2000