HT6P20X Series
2
24
OTP Encoder
Features
·
Operating voltage: 2V~12V
·
Low power consumption
·
Built-in oscillator needs only 5% resistor
·
0/2/4/8 data selectable
·
2
24
·
One time programmable process
·
Data active: D0~D7
·
Minimal external components
·
HT6P20A/B: 8-pin DIP/SOP package
maximum address and data codes
HT6P20D: 16-pin DIP/NSOP package
·
Easy interface with an RF or IR medium
Applications
·
Burglar alarm system
·
Smoke and fire alarm system
·
Garage door controllers
·
Car door controllers
·
Security system
·
Cordless telephones
·
Other remote control systems
General Description
The HT6P20X is a CMOS LSI encoder designed for re-
mote control system applications. It encodes 24 bits of
information and then serially transmits it via the DOUT
pin upon receipt of transmission enable (DATA pins:
D0~D7) signals. The combination of address and data
bits of the HT6P20X is designed using one time pro-
grammable process. In addition, the chip offers various
packaging for flexible combination of programmable ad-
dress/data so as to meet various applications. Its pro-
grammable address/data is transmitted together with
the anti-code bits via RF or infrared transmission me-
dium upon receipt of a trigger signal.
Block Diagram
O S C 1
O S C 2
V P P
S IO
O s c illa to r
A d d re s s
C o u n te r
P r o g r a m m in g
C ir c u it
M ix e r &
D r iv e r
D O U T
C o n tr o l U n it
D a ta L a tc h
P G M
D 0
D 7
Note: Address/Data numbers are available in various combinations, refer to the functional description.
Rev. 1.40
1
June 20, 2003
HOLTEK [ HOLTEK SEMICONDUCTOR INC ]
