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PDF LG12864F-SFDWH6V Data sheet ( Hoja de datos )
| Número de pieza | LG12864F-SFDWH6V | |
| Descripción | LCD Module | |
| Fabricantes | ETC | |
| Logotipo |  |
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LCD Module Specification
Model No.: LG12864F-FFDWH6V
LG12864F-LMDWH6V
LG12864F-SFDWH6V
LG12864F-BMDWH6V
Table of Contents
1. BASIC SPECIFICATIONS ····························································· 2
2. ABSOLUTE MAXIMUM RATINGS ················································ 4
3. ELECTRICAL CHARACTERISTICS ············································· 4
4. DISPLAY CONTROL COMMANDS ·············································· 9
5. CONNECTION WITH 8051 FAMILY MPU ·································· 10
6. INITIALIZATION AND POWER OFF ··········································· 11
7. ELECTRO-OPTICAL CHARACTERISTICS ································ 12
8. DIMENSIONAL OUTLINE ···························································· 13
9. LCD MODULE NUMBERING SYSTEM ······································· 14
10. PRECAUTIONS FOR USE OF LCD MODULE ··························· 15
RECORD OF REVISION
Rev.
Date
Page
0.1 2009/01/12
--
Item
--
New release
Description
1 page  
LG12864F-xxDWH6V Rev0.1
-5-
3.2 System Bus Read/Write Characteristics 1 (8080 Series MPU, Ta=25°C)
Parameters
Signal
Symbol
VDD=3.3V
Min. Max.
VDD=2.7V
Min. Max.
Condition
Address Hold Time
tAH8
0
--
0
--
A0
Address Setup Time
tAW8
0
--
0
--
System Cycle Time /RD, /WR tCYC8 240 -- 400 --
Write L Pulse Width
Write H Pulse Width
/WR
tCCLW
tCCHW
80
80
-- 220 --
-- 180 --
Read L Pulse Width
tCCLR 140 -- 220 --
/RD
Read H Pulse Width
tCCHR
80
-- 180 --
Data Setup Time
tDS8
40
--
40
--
Data Hold time
tDH8
0
--
0
--
D0~D7
Read Access Time
tACC8
--
70
-- 140 CL=100pF
Output Disable Time
tOH8
5
50 10 100 CL=100pF
Unit
ns
*1 The input signal rise and fall time (tr, tf) is specified at 15 ns or less.
*2 All timing is specified using 20% and 80% of VDD as the reference.
*3 tCCLW and tCCLR are specified as the overlap period when /CS1 is “L” and /WR(or /RD) is “L”.
A0
/CS1
/WR, /RD
D0~D7
( Write )
D0~D7
( Read )
t AW8
tf
t AH8
t CCLR, CCLW
t CYC8
tr
t DS8
tCCHR, CCHW
t DH8
t ACC8
t OH8
Bus Read/Write Timing (8080 Series MPU)
5 Page 
LG12864F-xxDWH6V Rev0.1
- 11 -
6. INITIALIZATION AND POWER OFF
6.1 Power on Initialization Sequence
No. Command
Description
1 Power on
2 Reset
Power on
a. Keep /RES= “L”
b. Wait for power stabilized (depends on system power)
c. Release reset state: set /RES=”H”
d. Delay 10 us, then start the following initialization
commands.
3 LCD bias set: A2H
Set LCD bias ratio: 1/9 bias
4 ADC select: A0H
Set LCD segment output pins normal direction
5
Common output
select: C8H
mode Set LCD common output scan reverse direction
6
Booster ratio set:
F8H, 00H (4x booster) or
F8H, 01H (5x booster)
Select 4x booster (when VDD=2.9 to 3.3V) or
5x booster (when VDD=2.4 to 2.8V)
V0 voltage regulator
7 Internal resistor ratio set: Set internal resistor ratio: (1+Rb/Ra)=5.5
25H
Set electronic volume register value=1BH. “1BH” is a
reference value, modify this value to get the best display
8
Electronic volume register contrast. Because of the manufacturing dispersion of LCD
set: 81H, 1BH
modules, electronic volume register value may need be
changed to match the driving voltage (V0) for different lot of
LCD modules.
9
Power control set
2CH, 2EH, 2FH
a. Set booster circuit ON
b. Set voltage regulator circuit ON
c. Set voltage follower circuit ON
10 Display on: AFH
Set display ON
11 End of initialization
6.2 Power off Sequence
No. Command
1 Optional status
2 Power save: AEH, A5H
3 Reset
4 Power off
Description
Normal operation
a. Set display OFF
b. Set display all points ON
a. Set /RES= “L”
b. Delay 50ms, then power off
11 Page | ||
| Páginas | Total 16 Páginas | |
| PDF Descargar | [ Datasheet LG12864F-SFDWH6V.PDF ] | |
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