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參數資料
| 型號： | UPD161401 |
| 廠商： | NEC Corp. |
| 英文描述： | 256-COLOR, 1/80-DUTY LCD CONTROLLER/DRIVER WITH ON-CHIP RAM |
| 中文描述： | 256色，1/80-DUTY LCD控制器/驅動器，片內RAM |
| 文件頁數： | 106/124頁 |
| 文件大?。?/td> | 647K |
| 代理商： | UPD161401 |
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Data Sheet S15726EJ2V0DS
106
μ
PD161401
8.3 Power ON Sequence (with External Driving Power Supply, Power ON
This is an example of inputting a reference voltage to the V
RS
pin and a driving voltage to the V
OUT
pin from an
external power supply.
→
Display ON)
Logic power supply ON with /DISP pin = L
↓
Power supply stabilized.
↓
/DISP pin = H
↓
Reset command
↓
Control register 1
DISP = 0, HALT = 1
↓
IC function setting by command input 1
Control register 1
(DISP = 0, HALT = 1)
Control register 2
↓
IC function setting by command input 2
Power system control register 1
(OP3, OP2, OP1, OP0 = 1, 1, 1, 1)
Power system control registers 2, 3, and 4
Power system control register 5
(HPM1, HPM0 = 0, 1)
Main electronic volume register
Sub-electronic volume register
↓
User setting by command input
Setting of functions such as grayscale data
↓
Initialization complete
↓
Control register 1
(DISP = 0, HALT =
0
)
↓
Turn ON external driving power supply
↓
LCD screen setting
Display start line setting
Writing of screen data
+ Wait time
↓
Power system control register 5
(HPM1, HPM0 = 0, 0)
↓
Control register 1
(DIPS =
1
, HALT = 0)
V
DD1
and V
DD2
ON, V
OUT
= Hi-Z
Wait for 50
μ
s or more.
Initialization of registers
R3
R0
Display OFF. Internal operation stops.
Specify power ON mode1 (master IC only).
R0
Display OFF.
Internal operation starts.
Supply voltage to V
OUT
pin.
Wait for at least 300 ms from when the internal operation
starts until the LCD turns ON
Note
.
Change the operation mode of the operation amplifier to
“normal mode” (master IC only).
R0
Display ON.
Internal operation starts.
Note
The time of 300 ms varies depending on the characteristics of the LCD panel and the capacitance of the
smoothing capacitor. It is recommended to determine this value after thorough evaluation with the actual
system (refer to
8.5 Flow of V
OUT
and V
LCD
Voltages from Power ON to Power OFF
).
#
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相關代理商/技術參數 |
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| UPD161602B | 制造商:NEC 制造商全稱:NEC 功能描述:360/396-OUTPUT TFT-LCD SOURCE DRIVER |
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