HT6P20X Datasheet, PDF (1/13 Pages) Holtek Semiconductor Inc – OTP Encoder

HT6P20X Series
2²⁴ OTP Encoder
Features
· Operating voltage: 2V~12V
· Low power consumption
· Built-in oscillator needs only 5% resistor
· 0/2/4/8 data selectable
· 2²⁴ maximum address and data codes
· Easy interface with an RF or IR medium
· One time programmable process
· Data active: D0~D7
· Minimal external components
· HT6P20A/B: 8-pin DIP/SOP package
HT6P20D: 16-pin DIP/NSOP package
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 SC1
O SC2
VPP
S IO
O s c illa to r
P r o g r a m m in g
C ir c u it
C o n tr o l U n it
A d d re s s
C o u n te r
M ix e r &
D r iv e r
D a ta L a tc h
DOUT
PG M
D0
D7
Note: Address/Data numbers are available in various combinations, refer to the functional description.
Rev. 1.40
1
June 20, 2003