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PDF LCD12864-COG Data sheet ( Hoja de datos )
| Número de pieza | LCD12864-COG | |
| Descripción | LCD Module User Manual | |
| Fabricantes | ETC | |
| Logotipo |  |
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LCD12864-COG
LCD Module User Manual
Rev.
01 Prelimiay Release
Descriptions
Date
2008-08-07
1 page  
LCD12864-COG
2. Absolute Maximum Ratings
Items
Supply Voltage
Input Voltage
Operating Temperature
Storage Temperature
Symbol
VDD
VIN
TOP
Tst
MIN.
-0.3
-0.3
-10
-20
MAX.
+3.3
VDD+0.3
+60
+70
Unit
V
V
℃
℃
Condition
VSS = 0V
VSS = 0V
No Condensation
No Condensation
3. Electrical Characteristics
3.1 DC Characteristics
Items
Symbol
Operating Voltage
VDD
Input High Voltage
VIH
Input Low Voltage
VIL
Output High Voltage
VOH
Output Low Voltage
VOL
Input Leakage Current
ILI
Output Leakage Current
ILo
3.3 AC Characteristics
MIN.
2.8
0.8 x VDD
VSS
0.8 x VDD
VSS
-1.0
-3.0
TYP.
3.0
-
-
-
-
-
-
MAX.
3.3
VDD
0.2 x VDD
VDD
0.2 x VDD
1.0
3.0
3.3.1 8080 Mode System Bus Timing
Vss = 0V,Top = 25℃
Unit
V
V
V
V
V
µA
µA
Vss = 0V,Top = 25℃
Condition
VDD
/CS1,/RES,A0,/WR,
/RD,D0~D7,C86
D0~D7
D0~D7
VDD
VDD
Page 5 of 14
5 Page 
4.6 Basic Operating Sequence
4.6.1 Initialization Sequence
Turn on Power Supply VDD & VSS While
maintaining /RES at LOW
Wait until power supply is stabilized
Release the /RES Reset Signal
(/RES = High)
LCD Bias = 1/9
ADC = Normal
SHL = Reverse
Initial Display Line = 0
Power Control
Voltage Follower = OFF
Voltage Regulator = OFF
Voltage Converter = ON
Delay 50ms
Power Control
Voltage Follower = OFF
Voltage Regulator = OFF
Voltage Converter = ON
Delay 50ms
Power Control
Voltage Follower = OFF
Voltage Regulator = OFF
Voltage Converter = ON
Delay 50ms
Regulator Resistor Select
Set Reference Voltage Mode
Set Reference Voltage Resistor
Display ON
Set Page Address = 0
Set Column Address (Upper -4bit = 0)
Set Column Address (Lower-4bit =4)
Write Display Data
Write Other Display Data
LCD12864-COG
Code Function
hex
- -- - --- -- - -
Note
- -- - --- -- - -
- -- - --- --
-
See AC Characteristics section for timing
details
0 1 0 1 0 0 0 1 0 A2H LCD Characteristics
0 1 0 1 0 0 0 0 0 A0H No flip on x-direction (SEG)
0 1 1 0 0 1 0 0 0 C8H Flip on y- direction (COM)
0 0 1 0 0 00 0 0
40H
i.e. Display RAM “Page 0-D0”
Matched to top line of the LCD
0 0 0 1 0 11 0 0
- -- - --- --
2CH
-
Turn on the internal Voltage Converter and
wait until VOUT stable
0 0 0 1 0 11 1 0
2EH
Turn on the internal Voltage Regulator and
wait until VOUT stable
- -- - --- --
-
0 0 0 1 0 11 1 1
2FH
Turn on the internal Voltage Follower and
wait until VOUT stable
- -- - --- --
-
0 0 0 1 0 0 1 0 1 25H Set the built-in resistor ratio to middle
0 1 0 0 0 0 0 0 1 81H Set to the middle of the range it may be adjused
0 0 0 1 0 0 0 0 0 20H For achieving the best display contrast
0 1 0 1 0 1 1 1 1 AFH Turn on the LCD display
0 1 0 1 1 00 0 0
B0H
Specify the display data RAM page address to
00H
0 0 0 0 1 0 0 0 0 10H Specify the display data RAM column address
0 0 0 0 0 0 1 0 0 04H to 00H
1 Display Data -
Page 11 of 14
11 Page | ||
| Páginas | Total 14 Páginas | |
| PDF Descargar | [ Datasheet LCD12864-COG.PDF ] | |
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