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LG12864F-LMDWH6V-TP Schematic ( PDF Datasheet ) - ETC

Teilenummer LG12864F-LMDWH6V-TP
Beschreibung LCD Module
Hersteller ETC
Logo ETC Logo 




Gesamt 17 Seiten
LG12864F-LMDWH6V-TP Datasheet, Funktion
LCD Module Specification
Model No.: LG12864F-FFDWH6V-TP
LG12864F-LMDWH6V-TP
LG12864F-SFDWH6V-TP
LG12864F-BMDWH6V-TP
Table of Contents
1. BASIC SPECIFICATIONS ····························································· 2
2. ABSOLUTE MAXIMUM RATINGS ················································ 4
3. ELECTRICAL CHARACTERISTICS ············································· 4
4. TOUCH PANEL CHARACTERISTICS ········································· 9
5. DISPLAY CONTROL COMMANDS ············································· 10
6. CONNECTION WITH 8051 FAMILY MPU ·································· 11
7. INITIALIZATION AND POWER OFF ··········································· 12
8. ELECTRO-OPTICAL CHARACTERISTICS ································ 13
9. DIMENSIONAL OUTLINE ···························································· 14
10. LCD MODULE NUMBERING SYSTEM ······································ 15
11. PRECAUTIONS FOR USE OF LCD MODULE ·························· 16
RECORD OF REVISION
Rev.
Date
Page
0.1 2009/01/12
--
Item
--
New release
Description






LG12864F-LMDWH6V-TP Datasheet, Funktion
LG12864F-xxDWH6V-TP Rev0.1
-6-
3.3 System Bus Read/Write Characteristics 2 (6800 Series MPU, Ta=25°C)
Parameters
Signal
Symbol
VDD=3.3V
Min. Max.
VDD=2.7V
Min. Max.
Condition
Address Hold Time
tAH6
0
--
0
--
A0, R/W
Address Setup Time
tAW6
0
--
0
--
System Cycle Time
E tCYC6 240 -- 400 --
Enable L Pulse Width
E tEWLW 80
-- 220 --
Enable H Pulse Width (Write) tEWHW 80
-- 180 --
Enable L Pulse Width
E tEWLR 80
-- 220 --
Enable H Pulse Width (Read) tEWHR 140 -- 180 --
Data Setup Time
tDS6
40
--
40
--
Data Hold time
tDH6
0
--
0
--
D0~D7
Read Access Time
tACC6
--
70
-- 140 CL=100pF
Output Disable Time
tOH6
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 tEWHW and tEWHR are specified as the overlap period when /CS1 is Land E is H.
A0, R/W
/CS1
E
D0~D7
( Write )
D0~D7
( Read )
t AW6
tr
t AH6
t EWHR, EWHW
t CYC6
t EWLR, EWLW
t DS6
tf
t DH6
t ACC6
t OH6
Bus Read/Write Timing (6800 Series MPU)

6 Page









LG12864F-LMDWH6V-TP pdf, datenblatt
LG12864F-xxDWH6V-TP Rev0.1
- 12 -
7. INITIALIZATION AND POWER OFF
7.1 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. 1BHis 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
7.2 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

12 Page





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