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TM1628A Datasheet(PDF) 2 Page - Shenzhen Tianwei Electronics Co., Ltd

Part # TM1628A
Description  LED drive control dedicated circuit
Download  18 Pages
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Manufacturer  TITANMEC [Shenzhen Tianwei Electronics Co., Ltd]
Direct Link  http://www.titanmec.com/
Logo TITANMEC - Shenzhen Tianwei Electronics Co., Ltd

TM1628A Datasheet(HTML) 2 Page - Shenzhen Tianwei Electronics Co., Ltd

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LED 驱动控制专用电路
TM1628A
©Titan Micro Electronics
www.titanmec.com
- 2 -
V1.1
四、管脚功能定义:
符号
管脚名称
管脚号
说明
NC
空脚
1
内部无连线
DIO
数据输出输入
2
在时钟上升沿输入串行数据,从低位
开始。在时钟下降沿输出串行数据,从
低位开始。输出时为N管开漏输出,内
置13.3K
 上拉电阻。
CLK
时钟输入
3
在上升沿读取串行数据,下降沿输出
数据。内置13.3K
 上拉电阻
STB
片选输入
4
在下降沿初始化串行接口,随后等待
接收指令。STB为低后的第一个字节作
为指令,当处理指令时,当前其它处理
被终止。当STB为高时,CLK 被忽略。
内置13.3K
 上拉电阻
K1~K2
键扫信号输入
5~6
输入该脚的数据在显示周期结束后被
锁存,内置7.2K
 下拉电阻
SGE1/KS1~
SEG10/KS10
输出(段)
8~17
段输出(也用作键扫描输出),P管开
漏输出,内置4K
 下拉电阻
GRID1~GRID4
输出(位)
27~26
24~23
位输出,N管开漏输出,内置2.7K
 上
拉电阻
SEG12/DRID7 ~
SEG14/GRID5
输出(段/位)
20~18
段/位复用输出,只能选段或位输出
VDD
逻辑电源
7、21
接电源正
GND
逻辑地
28、25、22
接系统地


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