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LM6029ACW
LCD Module User Manual
Prepared by:
Checked by:
Approved by:
Yang Lin
Date: 2010-06-10
Date:
Date:
Rev. Descriptions
Release Date
0.1
Preliminary release
2008-07-23
0.2
Typing correction on Display Command Table Heading
2009-05-15
0.3
Typing correction on Terminal Functions
2009-05-19
0.4
Refine Terminal Functions Discription
2010-06-10
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Document Name: LM6029ACW-Manual-Rev0.4
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TOPWAY
LCD Module User Manual
LM6029ACW
Table of Content
1. Basic Specifications .............................................................................................................. 3
1.1
Display Specifications……………………………………………………………………………………………………… 3
1.2
Mechanical Specifications……………………………………………………………………………………………….… 3
1.3
Block Diagram………………………………………………………………………………………………………………. 3
1.4
Terminal Functions…………………………………………………………………………………………………………. 4
2. Absolute Maximum Ratings .................................................................................................. 5
3. Electrical Characteristics ...................................................................................................... 5
3.1
DC Characteristics…………………………………………………………………………………………………………. 5
3.2
LED Backlight Circuit Characteristics……………………………………………………………………………………. 5
3.3
AC Characteristics…………………………………………………………………………………………………………. 6
4. Function specifications ......................................................................................................... 7
4.1
Basic Setting……………………………………………………………………………………………………………….. 7
4.2
Resetting the LCD module ………………………………………………………………………………………………. 7
4.3
Display Memory Map……………………………………………………………………………………………………… 8
4.4
Display Commands……………………………………………………………………………………………………….. 9
4.5
Display Commands (continue)………………………………………………………………………………………….. 10
5. Design and Handling Precaution ....................................................................... ……………11
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Document Name: LM6029ACW-Manual-Rev0.4
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LCD Module User Manual
LM6029ACW
1. Basic Specifications
1.1 Display Specifications
1) LCD Display Mode
: FSTN,Positive, Transflective
2) Display Color
: Display Data = “1” : Dark Blue (*1)
: Display Data = “0” : Light Gray (*2)
3) Viewing Angle
: 6H
4) Driving Method
: 1/65 duty, 1/9 bias
5) Backlight
: White LED backlight
Note:
*1. Color tone may slightly change by Temperature and Driving Condition.
*2. The Color is defined as the inactive / background color
1.2 Mechanical Specifications
1) Outline Dimension
: 59.6 x 50.6 x 8.7MAX (mm)
(See attached Outline Drawing for details)
1.3 Block Diagram
BLA
Backlight Circuit
LCD Panel
128 × 64Pixels
VDD
VSS
/WR,/RD,D0~D7
ST7565 or equivalent
/CS1, /RES, RS
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LCD Module User Manual
LM6029ACW
1.4 Terminal Functions
PIN
Pin No.
Name
I/O
Descriptions
1
VSS
Power Negative power supply,0V
2
VDD
Power Positive power supply
3
DB7
I/O
8-bit Data bus;
:
:
Three state I/O terminal for display data or instruction data
10
DB0
When /CS =H;
DB0~DB7=High Impedance
11
/RD
Input
Read enable input, active LOW
12
/WR
Input
Write enable input, active LOW
13
RS
Input
Register Select
RS = H, Transferring the Display Data
RS = L, Transferring the Control Data
14
/RES
Input
Reset signal
/RES = L, Initialization is executed
/RES = H, Normal running.
15
/CS1
Input
Chip Select
/CS1=L, enable access to the LCD module
/CS1=H, disable access to the LCD module
16
BLA
Power Positive power for LED backlight
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LCD Module User Manual
LM6029ACW
2. Absolute Maximum Ratings
Items
Symbol
Min.
Max.
Unit Condition
Supply Voltage
V DD
-0.3
+3.4
V
V SS = 0V
Input Voltage
V IN
-0.3
V DD +0.3
V
V SS = 0V
Operating Temperature
T OP
-20
+70
 C
No Condensation
Storage Temperature
T ST
-30
+80
 C
No Condensation
Cautions:
Any Stresses exceeding the Absolute Maximum Ratings may cause substantial damage to the device. Functional
operation of this device at other conditions beyond those listed in the specification is not implied and prolonged exposure
to extreme conditions may affect device reliability.
3. Electrical Characteristics
3.1 DC Characteristics
V SS =0V, V DD =3.3V, T OP =25  C
Items
Symbol
MIN.
TYP.
MAX.
Unit Condition /
Application Pin
Operating Voltage
V DD
2.9
3.3
3.4
V
VDD
Input High Voltage
V IH
0.8xV DD
-
V DD
V
/RES, /CS1, RS,
Input Low Voltage
V IL
V SS
-
0.2xV DD
V
D0~D7,/WR,/RD
Operating Current
I DD
-
0.15
1.4
mA VDD
3.2 LED Backlight Circuit Characteristics
VSS=0V, If BLA =39mA, T OP =25  C
Items
Symbol
MIN.
TYP.
MAX.
Unit
Applicable Pin
Forward Voltage
Vf BLA
-
3.3
-
V
BLA
Forward Current
If BLA
-
39
60
mA
BLA
Cautions:
Exceeding the recommended driving current could cause substantial damage to the backlight and shorten its lifetime.
BLA
VSS
No. of LED = 3pcs
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Document Name: LM6029ACW-Manual-Rev0.4
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LCD Module User Manual
LM6029ACW
3.3 AC Characteristics
3.3.1 8080 Mode System Bus Timing
RS
V SS =0V, V DD =3.0V, T OP =25  C
Item
Symbol
MIN.
TYP.
MAX.
Unit
System cycle time
tcyc8
240
-
-
ns
Address setup time (RS)
taw8
0
-
-
ns
Address hold time (RS)
tah8
0
-
-
ns
Control LOW pulse width (/WR)
tcclw
80
-
-
ns
Control LOW pulse width (/RD)
tcclr
140
-
-
ns
Control HIGH pulse width (/WR)
tcchw
80
-
-
ns
Control HIGH pulse width (/RD)
tcchr
80
-
-
ns
Data setup time
tds8
40
-
-
ns
Data hold time
tdh8
0
-
-
ns
/RD access time (*2)
tacc8
-
-
70
ns
Output disable time (*2)
tch8
-
5
50
ns
Note:
*1. Input signal rise/fall time should be less than 15ns .
*2. CL=100pF
*3.All timing is using 20% and 80% of VDD as the reference.
3.3.2 Reset Timing
V SS =0V, V DD =3.0V, T OP =25  C
Item
Symbol
MIN.
TYP.
MAX.
Unit
Reset time
tr
-
-
2.5
μs
Reset LOW pulse width
trw
2.5
-
-
μs
Note:
*1.All timing is using 20% and 80% of VDD as the reference.
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LCD Module User Manual
LM6029ACW
4. Function specifications
4.1 Basic Setting
To drive the LCD module correctly and provide normally display, please use the following setting
- ADC = 0 (normal)
- SHL select = 1 (reverse)
- LCD Bias Select = 1/9
- Initial Display Line = 0
- Entire Display ON/OFF = OFF (normal)
- Reverse Display ON/OFF = OFF (normal)
- Set Power Control Set:
voltage follower = ON, voltage converter = ON, voltage regulator = ON
- Display ON/OFF = ON
Note:
*1. These setting/commands should issue the LCD module while start up.
*2. See the Display Commands section for details.
4.2 Resetting the LCD module
The LCD module should be initialized by using /RES terminal.
While turning on the VDD and VSS power supply, maintain /RES terminal at LOW level. After the
power supply stabilized, release the reset terminal (/RES=HIGH)
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LCD Module User Manual
LM6029ACW
4.3 Display Memory Map
Page address
data
LCD Display (front view)
D0
0
:
D7
D0
1
:
D7
D0
2
:
D7
D0
3
:
D7
D0
4
:
128x64 pixels
D7
D0
5
:
D7
D0
6
:
D7
D0
7
:
D7
Column Address
00h
7Fh
Note:
*1. ADC = 0 (normal)
*2. SHL Selection = 1 (reverse)
*3. Initial Display Line = 0
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LCD Module User Manual
LM6029ACW
4.4 Display Commands
Code
No. Instructions
Function
DON=0, display off
1
Display ON/OFF
0 1 0 1 0 1 0 1 1 1
DON=1, display on
Display start
Sets the display RAM display start line
2
Display start line set
0 1 0 0 1
address
address
Page
3
Set Page Address
0 1 0 1 0 1 1
Address
Set the display RAM page address
Set Column Address
0 1 0 0 0 0 1
Col. Add.
Set the upper-4-bit of column address counter
(Upper-4-bits)
Upper
4
Set Column Address
0 1 0 0 0 0 0
Col. Add.
Set the lower-4-bit of column address counter
(Lower-4-bits)
Lower
Read the status data
5
Read Status
0 0 1 Status
0 0 0 0
6
Write Display Data
1 1 0
Write Data
Write data into the display RAM
7
Read Display Data
1 0 1
Read Data
Read data form the display RAM
Sets the display RAM address SEG output
8
ADC Select
0 1 0 1 0 1 0 0 0 0
correspondence
ADC= 0,normal . ADC=1, reverse
REV=0, Normal display
9
Normal/Reverse Display 0 1 0 1 0 1 0 0 1 1
REV=1, Reverse display
EON=0, Normal display
10
Entire Display ON/OFF
0 1 0 1 0 1 0 0 1 0
EON=1, Entire display ON
Set the LCD driving voltage bias
11
Set LCD Bias
0 1 0 1 0 1 0 0 0 1
BIAS=0, 1/9 BIAS
BIAS=1, 1/7 BIAS
Enter the “Read-Modify-Write” mode
column address counter will increase in each
12
Set Read-Modify-Write
0 1 0 1 1 1 0 0 0 0 0 “Write Display Data”,
and will not increase in each “Read Display
Data command”
13
Reset Read-Modify-Write 0 1 0 1 1 1 0 1 1 1 0 Clear the “Read-Modify-Write” mode
14
Reset
0 1 0 1 1 1 0 0 0 1 0 Resets the LCD module
Set the COM scanning direction
SHL=0, Normal display
15
SHL Select
0 1 0 1 1 0 0
* * *
SHL=1, Flipped in y direction
* = don’t care terms
Set the power circuit operation mode
VF: LCD Supply Voltage Follower
16
Power Control Set
0 1 0 0 0 1 0 1
VR: LCD Supply Voltage Regulator
VC: LCD Supply Voltage Converter
(1=ON, 0=OFF)
Radio
17
Regulator Resistor Select 0 1 0 0 0 1 0 0
setting
Set the built-in resistor ratio (Rb/Ra)
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LCD Module User Manual
LM6029ACW
4.5 Display Commands (continue)
Code
No. Instructions
Function
18
Electronic volume mode set 0 1 0 1 0 0 0 0 0 0 1 Set reference voltage mode
Electronic volume register
Electronic
Set reference voltage register
set
0 1 0 * *
Control value (Display contrast value)
19
0 1 0 1 0 1 0 1 1 0 S Sleep Mode (2 byte command)
Sleep Mode Set
0 1 0 0 0 0 0 0 0 0 0
S=0, sleep mode
S=1, normal mode
Booster Ratio Set
0 1 0 1 1 1 1 1 0 0 0 Booster Ratio (2 byte command)
Ratio=00, 2x, 3x, 4x
20
0 1 0 0 0 0 0 0 0 Ratio Ratio=01, 5x
Ratio=11, 6x
21
NOP
0 1 0 1 1 1 0 0 0 1 1 Non-operation command
Note:
*1. Do not use any other command not listed, or the system malfunction may result.
*2. For the details of the Display Commands, please refer to ST7565R data sheet.
4.5.1 Power off the LCD Module
It recommends that enter Sleep Mode before power off the LCD module.
4.5.2 Refreshing The LCD Module
It recommends that the operating modes and display contents be refreshed periodically to prevent
the effect of unexpected noise.
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LCD Module User Manual
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5. Design and Handling Precaution
Please refer to "LCD-Module-Design-Handling-Precaution.pdf".
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Document Name: LM6029ACW-Manual-Rev0.4
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