HT6026
Remote Control Encoder
Features
路
路
路
路
Operating voltage: 4V~18V
Low standby current
Low power and high noise immunity CMOS
technology
3
9
different codes
路
路
路
路
Minimum of two transmission words
Built-in oscillator needs only 5% resistor
Interface with RF or infrared transmission
medium
Minimal external components
Applications
路
路
路
路
Burglar alarm system
Smoke and fire alarm system
Garage door controllers
Car alarm system
路
路
路
Security system
Cordless telephones
Other remote control systems
General Description
The HT6026 is a CMOS LSI encoder designed for
remote control system applications. It is capable
of encoding 9 bits of information which consists of
N address bits and 9-N data bits. Each ad-
dress/data input is externally trinary program-
mable by external switches. The programmable
address/data is transmitted along with the
header bits via an RF or an infrared transmission
medium upon receipt of a trigger signal (TE).
The HT6026 is pin compatible with the
MC145026.
Pin Assignment
A D 0
1
2
3
4
5
6
7
8
A D 1
A D 2
A D 3
A D 4
A D 5
A D 6
V S S
1 6
1 5
1 4
1 3
1 2
1 1
1 0
9
V D D
D O U T
T E
O S C 3
O S C 2
O S C 1
A D 8
A D 7
Block Diagram
O S C 2
O S C 3
O S C 1
O s c illa to r
賂
4 D iv id e r
D a ta S e le c t
& B u ffe r
D O U T
H T 6 0 2 6
1 6 D IP /N S O P
T E
9
T r a n s m is s io n
G a te C ir c u its
賂
9 C o u n te r
& 1 o f 9
D e c o d e rs
S y n c .
C ir c u it
T r in a r y
D e te c to r
A D 0
A D 8
V D D
V S S
1
October 2, 1997