參數(shù)資料
型號： HD66727A04TA0L
廠商： Hitachi,Ltd.
英文描述： Low-Power Dot-Matrix Liquid Crystal Display Controller/Driver with Key Scan Function
中文描述： 低功耗點陣液晶顯示控制器/鍵掃描功能驅(qū)動程序
文件頁數(shù)： 82/97頁
文件大小： 513K
代理商： HD66727A04TA0L
HD66727
82
LED/Back Light Control
The HD66727 has three LED ports to control the LED and back light, which need current driving, and
three general ports, which do not need current driving. However, the sink current in the LED port output is
up to 3 mA. If the back light or LED needs more current, increase the current width with the transistor.
Table 37
LED Driving and General Output Port
AAN Address
LED Driving/General Output Port
MSB
LSB
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
0
0
1
1
*
*
PORT2
PORT1
PORT0
LED2
LED1
LED0
HD66727
V
CC
LED0
LED1
LED2
PORT0
PORT1
PORT2
LED
display
Back
light
GND
Figure 48 LED Driving Control Circuit Examples
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