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FD650 Datasheet(PDF) 2 Page - List of Unclassifed Manufacturers

Part # FD650
Description  LED drive control/keyboard scanning ASIC FD650
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Manufacturer  ETC2 [List of Unclassifed Manufacturers]
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FD650 Datasheet(HTML) 2 Page - List of Unclassifed Manufacturers

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集成电路 FD650
2
四、管脚功能说明
符 号
管脚名称
DIG1~
DIG4
位/键扫描输出
LED位驱动输出,低电平有效, 及作为键盘扫描输出,高电
平有效
DAT
数据输入/输出
2线串行接口的数据输入输出。为内置上拉开漏模式。
CLK
时钟输入
2线串行接口的数据时钟输入,内置上拉电阻
A/KI1~
G/KI7
段驱动输出/键
扫描输入
LED段驱动输出,高电平有效,也用作键扫描输入,高电平有
效,内置下拉
DP/KP
段/位输出
LED段输出,也用作键盘标志输出
VCC
电源端
3-5.5V
GND
接地端
接地
五、主要电气参数
极限参数(Ta = 25℃)
符 号
范 围
单 位
电源电压
VCC
-0.5 ~ +6.5
V
输入电压
VI1
-0.5 ~ VCC + 0.5
V
LED 段驱动输出电流
IO1
0 ~ 30
mA
LED 位驱动输出电流
IO2
0 ~ 150
mA
所有引脚驱动电流总和
IO
0 ~ 150
mA
工作温度
Topt
-40 ~ +85
储存温度
Tstg
-55 ~ +125


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