EEWORLDEEWORLDEEWORLD

Part Number

Search

HT6222

Description
multi-purpose encoders
File Size153KB,13 Pages
ManufacturerHoltek
Websitehttp://www.holtek.com/
Download Datasheet Compare View All

HT6222 Overview

multi-purpose encoders

HT6221/HT6222
Multi-Purpose Encoders
Features
·
·
·
·
·
·
·
Operating voltage: 1.8V~3.5V
DOUT with 38kHz carrier for IR medium
Low standby current
Minimum transmission word: one word
455kHz ceramic resonator or crystal
16-bit address codes
8-bit data codes
·
·
·
·
PPM code method
Three double-active keys
Maximum active keys
-
HT6221: 32 keys
-
HT6222: 64 keys
Low power and high noise immunity
CMOS technology
Applications
·
·
·
·
Television and video cassette recorder con-
trollers
Burglar alarm systems
Smoke and fire alarm systems
Garage door controllers
·
·
·
·
Car door controllers
Car alarm systems
Security systems
Other remote control systems
General Description
The HT6221/HT6222 are CMOS LSI encoders
designed for use in remote control systems. They
are capable of encoding 16-bit address codes and
8-bit data codes. Each address/data input can be
set to one of the two logic states, 0 and 1.
The HT 6 2 2 1/H T622 2 c on tai n 32 k ey s
(K1~K32) and 64 keys (K1~K64), respectively.
When one of the keys is triggered, the pro-
grammed address/data is transmitted together
with the header bits via an IR (38kHz carrier)
transmission medium.
Block Diagram
X 2
X 1
D a ta S e le c t
& B u ffe r
S y n c .
C ir c u it
O s c illa to r
D iv id e r
D O U T
L E D
R 1
R 8
K e y b o a rd
M a tr ix &
G a te
C ir c u it
D a ta R O M
& R e g is te r s
¸
2 4 C o u n te r &
1 o f 2 4 D e c o d e r
B in a r y D e te c to r
C 1
C 8
A IN
D 7
V D D
V S S
1
March 2, 2000

HT6222 Related Products

HT6222 HT6221 HT6222(24SDIP)
Description multi-purpose encoders multi-purpose encoders Remote Control Transmitter IC, CMOS, PDIP24
STM8 interrupt vector table, can any friend describe it in detail?
For example: 1. What does _stext mean?2. Can this address be changed? If there is a BOOTLOADER in the program, do I need to change it?3. What does typedef void @far (*interrupt_handler_t)(void); mean?...
eret stm32/stm8
AD9854
Does anyone have a PCB project for the AD9854 module?...
测控一哥 Electronics Design Contest
A strange phenomenon
(Linear voltage regulator) After full-bridge rectification, if the connected capacitor has a relatively small resistance, that is, the current taken out is large, then the time constant will become sm...
qrhrrong Power technology
Learn ufun+ serial port download
[i=s]This post was last edited by cxzs1234 on 2016-8-10 23:00[/i] I got the board a long time ago. I wanted to write something interesting, but the company had an urgent job that needed to be complete...
cxzs1234 stm32/stm8
Aliasing in Analog-to-Digital Converters
Aliasing in analog-to-digital converters: Not all signals are what they appear to beHave you ever seen a car moving forward while its wheels are actually spinning backwards? If not performing a stunt,...
dontium Analogue and Mixed Signal
Analog Devices Introduces Industry's First Differential Amplifier for 42V Automotive Systems
As the basic unit of various analog circuits, amplifiers are ubiquitous in today's automobiles that use electromechanical systems to control a variety of functions. Let's take a look at what is differ...
fighting Automotive Electronics

EEWorld
subscription
account

EEWorld
service
account

Automotive
development
circle

Robot
development
community

Index Files: 1715  1290  1083  1469  1594  35  26  22  30  33 
Datasheet   0 1 2 3 4 5 6 7 8 9 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
Room 1530, 15th Floor, Building B, No. 18 Zhongguancun Street, Haidian District, Beijing Telephone: (010) 82350740 Postal Code: 100190
Copyright © 2005-2026 EEWORLD.com.cn, Inc. All rights reserved 京ICP证060456号 京ICP备10001474号-1 电信业务审批[2006]字第258号函 京公网安备 11010802033920号