HT6230 Datasheet, PDF (1/8 Pages) Holtek Semiconductor Inc – Infrared Remote Encoder

HT6230
Infrared Remote Encoder
Features
· Operating voltage: 2.4V~5.2V
· 32 system codes, each system with
64 command codes
· Programmable transmission codes
· Biphase transmission method
· Generated modulation output data
Applications
· Televisions and video cassette recorder
controllers
· Garage door controllers
General Description
The HT6230 is designed as infrared remote en-
coder, usually applied to TV systems. A total of
2048 different commands can be generated and
arranged into 32 systems where each system
contains 64 different commands. There are 96
Block Diagram
(1/2 system frequency and 1/4 duty cycle)
· Single pin oscillator
· 429kHz resonator system clock
· Test pins available
· 28-pin SOP package
· Car door controllers
· Security systems
· Other remote control systems
keys and to each key is assigned one program-
mable code. The code is programmable by mask
option. Legal and illegal key operation can be
distinguished.
O SC
RC
O SC
3 ´ 21
2 ^{1 3} D iv id e r
P a r a lle l
T o S e r ia l
C o n v e rte r
TT1
T est
TT2
M ode
R eset
A c tio n
G e n e ra to r
O u tp u t
S ta g e
CODE
MS
M ode
S e le c tio n
C o n tro l
U n it
M o d u la tio n
O u tp u t
S ta g e
M CODE
Z IN 3
Z -k e y
Z -k e y
E ncoder
PAL
Z IN 0
DRS7
X IN 7
X IN 0
X -k e y
E ncoder
X -k e y
PAL
C om m and
A nd
S y s te m
C o d e L a tc h
Z -D R S
PAL
X -D R S
PAL
K ey S can
D r iv e r
D ecoder
DRS0
VSS VDD
1
April 19, 2000