EEWORLDEEWORLDEEWORLD

Part Number

Search

HT682L

Description
318 Series of Decoders
File Size541KB,14 Pages
ManufacturerHoltek
Websitehttp://www.holtek.com/
Download Datasheet Compare View All

HT682L Overview

318 Series of Decoders

3
18
Series of Decoders
Features
Operating voltage: 2.4V~12V
Low power and high noise immunity CMOS
technology
Low standby current
Capable of decoding 18 bits of information
Pairs with HOLTEK’s 3
18
series of encoders
8~18 address pins
0~8 data pins
Trinary address setting
Two times of receiving check
Built-in oscillator needs only a 5% resistor
Valid transmission indictor
Easily interface with an RF or an infrared
transmission medium
Minimal external components
Applications
Burglar alarm system
Smoke and fire alarm system
Garage door controllers
Car door controllers
Car alarm system
Security system
Cordless telephones
Other remote control systems
General Description
The 3
18
decoders are a series of CMOS LSIs for
remote control system applications. They are
paired with the 3
18
series of encoders. For
proper operation a pair of encoder/decoder pair
with the same number of address and data
format should be selected (refer to the en-
coder/decoder cross reference tables).
The 3
18
series of decoders receives serial ad-
dress and data from that series of encoders that
are transmitted by a carrier using an RF or an
IR transmission medium. It then compares the
serial input data twice continuously with its
local address. If no errors or unmatched codes
are encountered, the input data codes are de-
coded and then transferred to the output pins.
The VT pin also goes high to indicate a valid
transmission.
The 3
18
decoders are capable of decoding 18 bits
of information that consists of N bits of address
and 18–N bits of data. To meet various applica-
tions they are arranged to provide a number of
data pins whose range is from 0 to 8 and an
address pin whose range is from 8 to 18. In
addition, the 3
18
decoders provide various com-
binations of address/data number in different
packages.
Selection Table
Function Address
No.
Item
HT602L
HT604L
HT605L
HT611
12
10
9
14
Data
No.
2
4
5
0
VT
L
L
L
Oscillator
Trigger
Package
Type
RC oscillator DIN active “Hi” 20 DIP/20 SOP
RC oscillator DIN active “Hi” 20 DIP/20 SOP
RC oscillator DIN active “Hi” 20 DIP/20 SOP
RC oscillator DIN active “Hi” 20 DIP/20 SOP
1
2nd Oct ’97

HT682L Related Products

HT682L HT644L HT646L HT648L HT651 HT656 HT658 HT683L HT684L HT691
Description 318 Series of Decoders 318 Series of Decoders 318 Series of Decoders 318 Series of Decoders 318 Series of Decoders 318 Series of Decoders 318 Series of Decoders 318 Series of Decoders 318 Series of Decoders 318 Series of Decoders
High power inverter
This circuit was found on the Internet. This circuit converts 12V power supply into high voltage output. Please pay attention to safety when debugging this circuit. Please use this circuit as a resear...
程序天使 Power technology
Made a 51 experimental board
Recently, because there are no hardware projects to do, I want to make a few development boards for fun. It took me a month to finally make the 8051 and avr (atmega64) development boards. In the next ...
黑衣人 51mcu
How to run C# program on mobile phone
How can I run the program I wrote in C# on my mobile phone? My phone is a coolpad....
hsygzdc Embedded System
Brief Introduction to Flyback Converter Principle and Design
[i=s]This post was last edited by qwqwqw2088 on 2021-10-8 08:43[/i]Brief Introduction to the Principle and Design of Flyback ConverterDownload and read the full text directly...
qwqwqw2088 Power technology
"The East is Red" instrument, in memory of Mr. Qian Xuesen...
[img]https://home.eeworld.com.cn/my/attachment/200911/2/64393_1257141595DMAF.jpg[/img] [[i]This post was last edited by wanzsxit on 2009-11-2 20:41[/i]]...
wanzsxit DIY/Open Source Hardware
EEWORLD University Hall: Innovations achieved by friends using Raspberry Pi in those years
In those years, the innovations that our friends have achieved with Raspberry Pi : https://training.eeworld.com.cn/course/3521See how makers play with Raspberry Pi? Are you inspired? Do you want to tr...
phantom7 DIY/Open Source Hardware

EEWorld
subscription
account

EEWorld
service
account

Automotive
development
circle

Robot
development
community

Index Files: 2627  1582  460  2413  1351  53  32  10  49  28 
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