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LM6020FCW
LCD Module User Manual
Prepared by:
Checked by:
Approved by:
Dong
Date:2014-07-23
Date:
Date:
Rev. Descriptions
Release Date
0.1
Preliminary release
2014-07-23
URL: www.topwaydisplay.com
Document Name: LM6020FCW-Manual-Rev0.1
Page: 1 of 12
TOPWAY
LCD Module User Manual
LM6020FCW
Table of Content
1. Basic Specifications .............................................................................................................. 3
1.1
Display Specifications ............................................................................................................................................ 3
1.2
Mechanical Specifications ...................................................................................................................................... 3
1.3
Block Diagram ........................................................................................................................................................ 3
2. Terminal Functions ................................................................................................................ 4
3. Absolute Maximum Ratings .................................................................................................. 5
4. Electrical Characteristics ...................................................................................................... 5
4.1
DC Characteristics ................................................................................................................................................. 5
4.2
LED Backlight Circuit Characteristics ..................................................................................................................... 5
4.3
AC Characteristics ................................................................................................................................................. 6
4.4
Reset Timing .......................................................................................................................................................... 8
5. Function specifications ......................................................................................................... 9
5.1
Adjusting the Display Contrast ............................................................................................................................... 9
5.2
Application circuit (Example) .................................................................................................................................. 9
5.3
The Serial Interface ................................................................................................................................................ 9
5.4
Basic Setting ........................................................................................................................................................ 10
5.5
Resetting the LCD module ................................................................................................................................... 10
5.6
Display Memory Map............................................................................................................................................ 10
5.7
Display Commands .............................................................................................................................................. 11
6. Design and Handling Precaution ........................................................................................ 12
URL: www.topwaydisplay.com
Document Name: LM6020FCW-Manual-Rev0.1
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TOPWAY
LCD Module User Manual
LM6020FCW
1. Basic Specifications
1.1 Display Specifications
1) LCD Display Mode
: FSTN, Positive, Transflective
2) Display Color
: Display Data = “1” : Dark Gray(*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
*3. Fine Contrast adjustment function is necessary in the application design for optimal display result.
1.2 Mechanical Specifications
1) Outline Dimension
: 44.9 x 32.6 x 8.9MAX (mm) (exclude FPC terminal)
(See attached Outline Drawing for details)
1.3 Block Diagram
Backlight
BLA, BLK
LCD Panel
128 × 64Pixels
VDD
VSS
D0~D7
/CS1, RD(E), WR(R/W), RESET,
ST7565 or equivalent
C86, P/S,IRS
A0
V0~V4, VR,V0, VOUT
C1P, C1N, C2P, C2N, C3P, C4P
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Document Name: LM6020FCW-Manual-Rev0.1
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LCD Module User Manual
LM6020FCW
2. Terminal Functions
Descriptions
PIN
PIN
8-bit parallel
8-bit parallel
Serial mode
NO.
Name
I/O
8080 mode(Default)
6800 mode
1
/CS1
Input
Chip Select
/CS1=L, enable access to the LCD module
/CS1=H, disable access to the LCD module
2
RESET
Input
Reset signal
/RES = L, Initialization is executed
/RES = H, Normal running.
3
A0
Input
Register Select
A0 = H, Transferring the Display Data
A0 = L, Transferring the Control Data
4
WR
Input
/WR=L  H, /RD=H;
R/W=H,E=H;
Not used,
(R/W)
Data or Instruction
Data or Status read Leave open or pull
latch into the LCD
from the LCD module Hi
module
R/W=L,E=H  L;
5
RD
Input
/WR=H, /RD=L;
Data or Status latch
(E)
Data or Status read
into the LCD module
form the LCD module
6
D0
I/O
8-bit Data bus;
Not used,
:
:
I/O
Three state I/O terminal for display data or
Leave open
11
D5
I/O
instruction data
12
D6
I/O
when /CS=H,
Serial clock input
13
D7
I/O
D0~D7=High Impedance
Serial data input
14
VDD
Supply
Positive power supply
15
VSS
Supply
Negative power supply,0V
16
VOUT
--
Power Booster Circuit output
17
C3P
--
Power Booster Circuit Capacitance terminals
18
C1N
--
19
C1P
--
20
C2P
--
21
C2N
--
22
C4P
--
23
VRS
--
Internal output VREG power supply (leave open)
24
V4
--
LCD driving voltage supply terminals
:
:
:
28
V0
--
29
VR
Input
Power Booster Resistor ratio reference input
30
C86
Input
C86=Low
C86=High
C86=Low
31
P/S
Input
P/S=High
P/S=High
P/S=Low
32
IRS
Input
Select the resistors for the V0 voltage level adjustment
IRS=H, Using the internal resistors
IRS=L, Using external attached to the VR Terminal
-
BLA
Power
Backlight Positive Supply
-
BLK
Power
Backlight Negative Supply
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Document Name: LM6020FCW-Manual-Rev0.1
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LCD Module User Manual
LM6020FCW
3. Absolute Maximum Ratings
Items
Symbol
Min.
Max.
Unit Condition
Supply Voltage
V DD
-0.3
+3.6
V
V SS = 0V
Input Voltage
V IN
-0.2
V DD +0.2
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.
4. Electrical Characteristics
4.1 DC Characteristics
V SS =0V, V DD =3.0V, T OP =25  C
Items
Symbol
MIN.
TYP.
MAX.
Unit Condition /
Application Pin
Operating Voltage
V DD
2.7
-
3.3
V
VDD
Input High Voltage
V IH
0.85xV DD
-
V DD
V
RESET, /CS1, A0,
Input Low Voltage
V IL
V SS
-
0.15xV DD
V
WR(R/W), RD(E),
D0~D7
Output High Voltage
V OH
0.75xV DD
-
V DD
V
D0~D7
Output Low Voltage
V OL
V SS
-
0.25xV DD
V
D0~D7
Operating Current
I DD
-
0.3
1.5
mA VDD
4.2 LED Backlight Circuit Characteristics
BLK=0V,BLA=3.3V, T OP =25  C
Items
Symbol
MIN.
TYP.
MAX.
Unit
Applicable Pin
Forward Voltage
V BLA
-
3.3
-
V
BLA
Forward Current
I BLA
-
34
40
mA
BLA
Cautions:
Exceeding the recommended driving current could cause substantial damage to the backlight and shorten its lifetime.
BLA
BLK
No. of LEDs= 2x1
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Document Name: LM6020FCW-Manual-Rev0.1
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TOPWAY
LCD Module User Manual
LM6020FCW
4.3 AC Characteristics
4.3.1 8080 Mode System Bus Timing
V SS =0V, V DD =3.0V, T OP =25  C
Item
Symbol
MIN.
TYP.
MAX.
Unit
System cycle time
tcyc8
312
-
-
ns
Address setup time (A0)
taw8
5
-
-
ns
Address hold time (A0)
tah8
5
-
-
ns
Control LOW pulse width (/RD)
tccl r
182
-
-
ns
Control LOW pulse width (/WR)
tcclw
104
-
-
ns
Control HIGH pulse width (/RD)
tcch r
104
-
-
ns
Control HIGH pulse width (/WR)
tcchw
104
-
-
ns
Data setup time
tds8
52
-
-
ns
Data hold time
tdh8
5
-
-
ns
/RD access time (*2)
tacc8
-
-
49
ns
Output disable time (*2)
toh8
7
-
35
ns
Note:
*1. Input signal rise/fall time should be less than 15ns .
*2.All timing is using 20% and 80% of VDD as the reference.
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Document Name: LM6020FCW-Manual-Rev0.1
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LCD Module User Manual
LM6020FCW
4.3.2 6800 Mode System Bus Timing
V SS =0V, V DD =3.0V, T OP =25  C
Item
Symbol
MIN.
TYP.
MAX.
Unit
System cycle time
tcyc6
312
-
-
ns
Address setup time (A0)
taw6
5
-
-
ns
Address hold time (A0)
tah6
5
-
-
ns
Control LOW pulse width (R/W)
tewlr
104
-
-
ns
Control LOW pulse width (R/W)
tewlw
104
-
-
ns
Control HIGH pulse width (/RD)
tewhr
182
-
-
ns
Control HIGH pulse width (R/W)
tewhw
104
-
-
ns
Data setup time
tds6
52
-
-
ns
Data hold time
tdh6
5
-
-
ns
/RD access time (*2)
tacc6
-
-
49
ns
Output disable time (*2)
tch6
7
-
35
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.
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Document Name: LM6020FCW-Manual-Rev0.1
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LCD Module User Manual
LM6020FCW
4.3.3 Serial Mode Interface
V SS =0V, V DD =3.0V, T OP =25  C
Item
Symbol
MIN.
TYP.
MAX.
Unit
Serial Clock Period
tscyc
65
-
-
ns
Address setup time (A0)
tsas
26
-
-
ns
Address hold time (A0)
tsah
13
-
-
ns
SCL “H” pulse width
tshw
33
-
-
ns
SCL “L” pulse width
tslw
33
-
-
ns
Data setup time
tsds
26
-
-
ns
Data hold time
tsdh
13
-
-
ns
CS-SCL time
tcss
26
-
-
ns
CS-SCL time
tcsh
52
-
-
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.
4.4 Reset Timing
V SS =0V, V DD =3.0V, T OP =25  C
Item
Symbol
MIN.
TYP.
MAX.
Unit
Reset time
tr
-
-
1.3
μs
Reset LOW pulse width
trw
1.3
-
-
μs
Note:
*1.All timing is using 20% and 80% of VDD as the reference.
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Document Name: LM6020FCW-Manual-Rev0.1
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TOPWAY
LCD Module User Manual
LM6020FCW
5. Function specifications
5.1 Adjusting the Display Contrast
- This LCD module equipped with latest digital contrast adjustment function.
- Its display contrast could be adjusted by MCU command. (please see the command tables for
details)
- It is recommended to provide a contrast adjustment interface for end-user, where the best
display result could meet the individual preference in mass production.
5.2 Application circuit (Example)
- 4x boosting
- 80 mode
- Using internal ref resistor
- C1~C5 = 1.0uF (25V)
- C6~C9 = 1.0uF (25V)
Note:
Please refer to the ST7565 data sheet for
details
5.3 The Serial Interface
When the serial interface has been selected then when the chip is in active state the serial data
input(SI) and the serial clock(SCL) can be received. The serial data is read from the serial data
input pin in the rising edge of the serial clock . When “A0”=“H”, the data is display data, and when
“A0”=“L”, the data is command.
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Document Name: LM6020FCW-Manual-Rev0.1
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LCD Module User Manual
LM6020FCW
5.4 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.
5.5 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)
5.6 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
LM6020FCW
5.7 Display Commands
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 ST7565 data sheet.
5.7.1 Power off the LCD Module
It recommends that enter Power Save mode before power off the LCD module.
5.7.2 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
LM6020FCW
6. Design and Handling Precaution
Please refer to "LCD-Module-Design-Handling-Precaution.pdf".
URL: www.topwaydisplay.com
Document Name: LM6020FCW-Manual-Rev0.1
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