Datasheet > HT683L

HT683L

更新时间： 2024-02-01 15:15:40

品牌	Logo	应用领域
台湾合泰/盛群 - HOLTEK		解码器
页数	文件大小	规格书
14页	839K
描述
318 Series of Decoders

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技术参数
数据手册

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HT683L 技术参数

是否Rohs认证：	不符合	生命周期：	Obsolete
包装说明：	DIP, DIP18(UNSPEC)	Reach Compliance Code：	unknown
风险等级：	5.92	JESD-30 代码：	R-PDIP-T18
JESD-609代码：	e0	端子数量：	18
最高工作温度：	70 °C	最低工作温度：	-20 °C
封装主体材料：	PLASTIC/EPOXY	封装代码：	DIP
封装等效代码：	DIP18(UNSPEC)	封装形状：	RECTANGULAR
封装形式：	IN-LINE	电源：	3/12 V
认证状态：	Not Qualified	子类别：	Other Telecom ICs
表面贴装：	NO	技术：	CMOS
电信集成电路类型：	TELECOM CIRCUIT	温度等级：	COMMERCIAL
端子面层：	Tin/Lead (Sn/Pb)	端子形式：	THROUGH-HOLE
端子位置：	DUAL	Base Number Matches：	1

HT683L 数据手册

Series of Decoders

Functional Description

Operation

Flowchart

The 3¹⁸series of decoders provides various com-

binations of address and data pins in different

packages. It is paired with the 3¹⁸series of

encoders. The decoders receive data transmit-

ted by the encoders and interpret the first N

bits of the code period as address and the last

18–N bits as data (where N is the address code

number). A signal on the DIN pin then activates

the oscillator which in turns decodes the incom-

ing address and data. The decoders will check

the received address twice continuously. If all

the received address codes match the contents

of the decoder ’s local address, the 18–N bits of

data are decoded to activate the output pins,

and the VT pin is set high to indicate a valid

transmission. That will last until the address

code is incorrect or no signal has been received.

The output of the VT pin is high only when the

transmission is valid. Otherwise it is low al-

ways.

Output type

There are 2 types of output to select from:

•

Momentary type

The data outputs follow the encoder during a

valid transmission and then reset.

•

Latch type

The data outputs follow the encoder during a

valid transmission, and are then latched in

this state until the next valid transmission

occurs.

Note: Th e oscilla t or is dis a bled in t h e

standby state and activated as long as

a logic “high” signal is applied to the

DIN pin. i.e., the DIN should be kept

“low” if there is no signal input.

2nd Oct ’97

1 2 3 456 7 8...14

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