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HT12D

更新时间： 2024-11-17 22:48:27
品牌 Logo 应用领域
台湾合泰/盛群 - HOLTEK 解码器远程控制集成电路消费电路商用集成电路LTE
页数 文件大小 规格书
9页 152K
描述
2 12 Series of Decoders

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中文翻译

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HT12D 技术参数

生命周期：ActiveReach Compliance Code：unknown
风险等级：1.91商用集成电路类型：SUPPORT CIRCUIT
Base Number Matches：1

HT12D 数据手册

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212 Series of Decoders  
Features  
·
·
Operating voltage: 2.4V~12V  
·
Address/Data number combination  
-
Low power and high noise immunity CMOS  
technology  
Low standby current  
HT12D: 8 address bits and 4 data bits  
HT12F: 12 address bits only  
-
·
·
·
·
·
·
·
·
Built-in oscillator needs only 5% resistor  
Valid transmission indicator  
Capable of decoding 12 bits of information  
Pair with Holtek¢s 212 series of encoders  
Binary address setting  
Easy interface with an RF or an infrared  
transmission medium  
Minimal external components  
·
Received codes are checked 3 times  
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 212 decoders are a series of CMOS LSIs for  
remote control system applications. They are  
paired with Holtek¢s 212 series of encoders (re-  
fer to the encoder/decoder cross reference ta-  
ble). For proper operation, a pair of  
encoder/decoder with the same number of ad-  
dresses and data format should be chosen.  
their local addresses. If no error or unmatched  
codes are found, 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 212 series of decoders are capable of decod-  
ing informations that consist of N bits of ad-  
dress and 12-N bits of data. Of this series, the  
HT12D is arranged to provide 8 address bits  
and 4 data bits, and HT12F is used to decode 12  
bits of address information.  
The decoders receive serial addresses and data  
from a programmed 212 series of encoders that  
are transmitted by a carrier using an RF or an  
IR transmission medium. They compare the se-  
rial input data three times continuously with  
Selection Table  
Function  
Data  
Address  
No.  
VT Oscillator  
Trigger  
Package  
Part No.  
No. Type  
HT12D  
HT12F  
8
4
0
L
RC oscillator  
RC oscillator  
18 DIP/20 SOP  
18 DIP/20 SOP  
Ö
Ö
DIN active ²Hi²  
DIN active ²Hi²  
12  
¾
Notes: Data type: L stands for latch type data output.  
VT can be used as a momentary data output.  
1
July 12, 1999  
1234567...9

中文翻译

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