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LM1075ACW-2
LCD Module User Manual
Prepared by:
Checked by:
Approved by:
likeke
Date: 2020-03-17
Date:
Date:
Rev. Descriptions
Release Date
0.1
New release
2020-03-17
URL: www.topwaydisplay.com
Document Name: LM1075ACW-2-Manual-Rev0.1.DOC
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TOPWAY
LCD Module User Manual
LM1075ACW-2
Table of Content
1. Basic Specifications...................................................................................................................3
1.1 Display Specifications..................................................................................................................................3
1.2 Mechanical Specifications............................................................................................................................3
1.3 Block Diagram..............................................................................................................................................3
1.4 Interface Description....................................................................................................................................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
3.4 Reset Timing................................................................................................................................................6
4. Function Specifications ............................................................................................................7
4.1 Adjusting the Display Contrast.....................................................................................................................7
4.2 Resetting the LCD module...........................................................................................................................7
4.3 Display Pixel Map.........................................................................................................................................7
4.4 Command Summary....................................................................................................................................8
5. Design and Handling Precaution ..............................................................................................9
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TOPWAY
LCD Module User Manual
LM1075ACW-2
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) Driving Method
: 1/128 duty, 1/12 bias
4) 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
: 180.0 x 65.0 x 11.0MAX (Exclude DIP Connector)
see attached Outline Drawing for details
1.3 Block Diagram
BLA
Backlight Circuit
BLK
VDD, VSS
LCD Panel
Power
480x128 dots
Circuit
V0
FG
/CS, /RST, A0, /WAIT
/WR, /RD
S1D13700
DB0-DB7
Or equivalent
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TOPWAY
LCD Module User Manual
LM1075ACW-2
1.4 Interface Description
1.4.1 Terminal Functions
Pin
Pin
No.
Name
I/O
Descriptions(80 mode)
1
FG
Passive Frame Ground
2
VSS
Power 0V Power Supply
3
VDD
Power Positive Power Supply
4
NC
--
--
5
/WR
Input
Write enable input, active LOW
6
/RD
Input
Read enable input, active LOW
7
/CS
Input
Chip Select Signal
/CS=LOW: Data IO is enabled
8
A0
Input
Register Select
A0=HIGH: data on DB0 to DB7 is display data
A0=LOW: data on DB0 to DB7 is control data
9
/WAIT
Output Wait signal, if there is no read write activity, /WAIT will be in HZ state
10
/RST
Input
Reset Signal:
/RST = L, Reset the LCD Module
/RST = H, Normal Running
11
DB0
I/O
8-bit bi-directional data bus
:
:
18
DB7
19
NC
--
--
20
V0
Input
LCD Contrast Reference Input
21
BLA
Power Positive Power Supply for LED backlight
22
BLK
Power Negative Power Supply for LED backlight
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TOPWAY
LCD Module User Manual
LM1075ACW-2
2. Absolute Maximum Ratings
Items
Symbol
Min.
Max.
Unit
Condition
Supply Voltage
V DD
0
5.5
V
V SS = 0V
Input Voltage
V IN
V SS -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 =5.0V, T OP =25 C
Items
Symbol
MIN.
TYP.
MAX.
Unit Applicable Pin
Operating Voltage
V DD
-
5.0
-
V
VDD
Input High Voltage
V IH
0.8xVDD
-
VDD
V
Input pins
Input Low Voltage
V IL
VSS
-
0.1xVDD
V
Input pins
Operating Current
I DD
-
12
38
mA VDD
V0 Voltage
V0
1.31
1.9
2.28
V
V0
3.2 LED Backlight Circuit Characteristics
BLK=0V, If BLA =102mA, T OP =25 C
Items
Symbol
MIN.
TYP.
MAX.
Unit
Applicable Pin
Forward Voltage
Vf BLA
-
3.3
-
V
BLA
Forward Current
If BLA
-
102
120
mA
BLA
Cautions:
Exceeding the recommended driving current could cause substantial damage to the backlight and shorten its lifetime.
BLA
BLK
No. of LED = 6pcs
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TOPWAY
LCD Module User Manual
LM1075ACW-2
3.3 AC Characteristics
3.3.1 8080 Mode
VSS=0V, VDD=5.0V, T OP =25 C, System clock =20MHz
Item
Symbol
MIN.
TYP.
MAX.
Unit
Address Hold Time
tah8
7
-
-
ns
Address Setup Time
tas8
7
-
-
ns
System Cycle Time
tcyc8
600
-
-
ns
Strobe Pulse Width
tcc8
500
-
-
ns
Data Setup Time
tds8
200
-
-
ns
Data Hold Time
tdh8
10
-
-
ns
Data Access Time
tacc8
5
-
-
ns
Output disable Time
toh8
3
-
15
ns
Note:
*1. Input signal rise/fall time should be less than 20ns
*2. Please see the S1D13700 data sheet for details
3.4 Reset Timing
V SS =0V, V DD =5.0V, T OP =25 C
Item
Symbol
MIN.
TYP.
MAX.
Unit
Reset Plus
tres
1.0
-
-
ms
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TOPWAY
LCD Module User Manual
LM1075ACW-2
4. Function Specifications
4.1
Adjusting the Display ContrastA Variable-
Voltage-Signal must be connected to V0.
Adjusting the voltage will result the change of
LCD
display contrast. The value of the voltage is
between
1.31 to 2.28V.
4.2 Resetting the LCD module
The LCD module should be initialized by hardware reset, using /RST terminal.
4.3 Display Pixel Map
1,1
2,1
3,1
4,1
5,1
476,1
477,1
478,1
479,1
480,1
(D7)
(D6)
(D5)
(D4)
(D3)
- - -
- - -
(D4)
(D3)
(D2)
(D1)
(D0)
1,2
2,2
3,2
4,2
5,2
476,2
477,2
478,2
479,2
480,2
(D7)
(D6)
(D5)
(D4)
(D3)
- - -
- - -
(D4)
(D3)
(D2)
(D1)
(D0)
1,3
2,3
3,3
4,3
5,3
476,3
477,3
478,3
479,3
480,3
(D7)
(D6)
(D5)
(D4)
(D3)
- - -
- - -
(D4)
(D3)
(D2)
(D1)
(D0)
:
:
:
:
:
:
:
:
:
:
:
:
:
:
:
:
:
:
:
:
:
:
:
:
:
:
:
:
:
:
:
:
:
:
:
:
1,126
2,126
3,126
4,126
5,126
476,126 477,126 478,126 479,126 480,126
(D7)
(D6)
(D5)
(D4)
(D3)
- - -
- - -
(D4)
(D3)
(D2)
(D1)
(D0)
1,127
2,127
3,127
4,127
5,127
476,127 477,127 478,127 479,127 480,127
(D7)
(D6)
(D5)
(D4)
(D3)
- - -
- - -
(D4)
(D3)
(D2)
(D1)
(D0)
1,128
2,128
3,128
4,128
5,128
476,128 477,128 478,128 479,128 480,128
(D7)
(D6)
(D5)
(D4)
(D3)
- - -
- - -
(D4)
(D3)
(D2)
(D1)
(D0)
*1. Based on the top view of the LCD module,
the 1, 1 (x, y) pixel is the upper-left pixel;
the 480, 128 (x, y) pixel is the lower-right pixel.
*2. For the details of memory mapping please refer to S1D13700 datasheet.
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TOPWAY
LCD Module User Manual
LM1075ACW-2
4.4 Command Summary
Para-
Command meter
HEX Descriptions
SYSTEM
-
1
1
0
0
1
0
0
0
0
0
0
40
Init device and display (with 8 parameters)
SET
P1
0
1
0
0
0
IV
1 W/S
M2
M1
M0
**
M0=0: internal CG ROM
M0=1: external CG ROM
M1=0: no D6 correction
M1=1: D6 correction
M2=0: 8-pixel char height
M2=1: 16-pixel char height
W/S=0: single panel drive
W/S=1: dual panel drive
IV=0: Screen top-line correction
IV=1: No screen top-line correction
P2
0
1
0 WF 0
0
0
0
FX
**
FX: define the horizontal char size
WF=0: 16-line AC drive
WF=1: two frame AC drive
P3
0
1
0
0
0
0
0
FY
**
FY: Vertical Char Size
P4
0
1
0
C/R
**
C/R: display line address range
P5
0
1
0
TC/R
**
TC/R: Line length selection
P6
0
1
0
L/F
**
L/F: Frame Height selection
P7
0
1
0
APL
**
APL: Horizontal address range (low byte)
P8
0
1
0
APH
**
APH: Horizontal address range (high byte)
SLEEP IN
-
1
1
0
0
1
0
1
0
0
1
1
53
Enter standby mode
DISP
-
1
1
0
0
1
0
1
1
0
0
D
58 / 59 Enable and disable display and display flashing (with 1
ON/OFF
parameter)
Each pair of bit in FP sets the attributes of one screen
P1
0
1
0 FP5 FP4 FP3 FP2 FP1
FP0
FC1
FC0
**
block
SCROLL
Set display start address and display regions (with 8 or
-
1
1
0
0
1
0
0
0
1
0
0
44
10 parameters)
P1
0
1
0
A7
A6
A5
A4
A3
A2
A1
A0
**
SAD 1L
P2
0
1
0 A15 A14 A13 A12 A11
A10
A9
A8
**
SAD 1H
P3
0
1
0
L7
L6
L5
L4
L3
L2
L1
L0
**
SL1
P4
0
1
0
A7
A6
A5
A4
A3
A2
A1
A0
**
SAD 2L
P5
0
1
0 A15 A14 A13 A12 A11
A10
A9
A8
**
SAD 2H
P6
0
1
0
L7
L6
L5
L4
L3
L2
L1
L0
**
SL2
P7
0
1
0
A7
A6
A5
A4
A3
A2
A1
A0
**
SAD3L
P8
0
1
0 A15 A14 A13 A12 A11
A10
A9
A8
**
SAD3H
SAD4L (for both two-screen drive and two layer config
P9
0
1
0
A7
A6
A5
A4
A3
A2
A1
A0
**
are select)
SAD4H (for both two-screen drive and two layer config
P10
0
1
0 A15 A14 A13 A12 A11
A10
A9
A8
**
are select)
CSRFORM
-
1
1
0
0
1
0
1
1
1
0
1
5D
Set cursor type (with 2 parameters)
P1
0
1
0
0
0
0
0
X3
X2
X1
X0
**
CRX
P2
0
1
0 CM 0
0
0
Y3
Y2
Y1
Y0
**
CRY
CM=0: underscore cursor; CM=1: block cursor
CGRAM
Set Start address of char generator RAM (with 2
-
1
1
0
0
1
0
1
1
1
0
0
5C
ADR
parameters)
P1
0
1
0
A7
A6
A5
A4
A3
A2
A1
A0
**
SAGL
P2
0
1
0 A15 A14 A13 A12 A11
A10
A9
A8
**
SAGH
CSRDIR
-
1
1
0
0
1
0
0
1
1
CD1
CD0
4C~4F Set Direction of Cursor movement
HDOT SCR
-
1
1
0
0
1
0
1
1
0
1
0
5A
Set horizontal scroll position (with 1 parameters)
P1
0
1
0
0
0
0
0
0
D2
D1
D0
**
OVLAY
-
1
1
0
0
1
0
1
1
0
1
1
5B
Set display overlay format (with 1 parameters)
P1
0
1
0
0
0
0 OV DM2
DM1
MX1
MX0
**
CSRW
-
1
1
0
0
1
0
0
0
1
1
0
46
Set cursor address (with 2 parameters)
P1
0
1
0
A7
A6
A5
A4
A3
A2
A1
A0
**
CSRL
P2
0
1
0 A15 A14 A13 A12 A11
A10
A9
A8
**
CSRH
CSRR
-
1
1
0
0
1
0
0
0
1
1
1
47
Read Cursor Address (with 2 parameters)
P1
1
0
1
A7
A6
A5
A4
A3
A2
A1
A0
**
CSRL
P2
1
0
1 A15 A14 A13 A12 A11
A10
A9
A8
**
CSRH
MWRITE
-
1
1
0
0
1
0
0
0
0
1
0
42
Write to display memory (with n parameters)
P1
0
1
0
Memory Data
**
Display memory data
:
:
:
:
:
**
Pn
0
1
0
Memory Data
**
MREAD
-
1
1
0
0
1
0
0
0
1
1
43
Read from display memory (with n parameters)
P1
1
0
1
Memory Data
**
Display memory data
:
:
:
:
:
**
Pn
1
0
1
Memory Data
**
Gray Scale
-
1
0
1
0
1
1
0
0
0
0
0
60
Sets grayscale mode
Note: Please refer to SID13700 data sheet for details.
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Document Name: LM1075ACW-2-Manual-Rev0.1.DOC
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LCD Module User Manual
LM1075ACW-2
5. Design and Handling Precaution
1.
The LCD panel is made by glass. Any mechanical shock (eg. dropping form high place)
will damage the LCD module.
2.
Do not add excessive force on the surface of the display, which may cause the Display
color change abnormally.
3.
The polarizer on the LCD is easily get scratched. If possible, do not remove the LCD
protective film until the last step of installation.
4.
Never attempt to disassemble or rework the LCD module.
5.
Only Clean the LCD with Isopropyl Alcohol or Ethyl Alcohol. Other solvents (eg. water)
may damage the LCD.
6.
When mounting the LCD module, make sure that it is free form twisting, warping and
distortion.
7.
Ensure to provide enough space (with cushion) between case and LCD panel to
prevent external force adding on it, or it may cause damage to the LCD or degrade the
display result.
8.
Only hold the LCD module by its side. Never hold LCD module by add force on the heat
seal or TAB.
9.
Never add force to component of the LCD module. It may cause invisible damage or
degrade of the reliability.
10.
LCD module could be easily damaged by static electricity. Be careful to maintain an
optimum anti-static work environment to protect the LCD module.
11.
When peeling off the protective film from LCD, static charge may cause abnormal
display pattern. It is normal and will resume to normal in a short while.
12.
Take care and prevent get hurt by the LCD panel sharp edge.
13.
Never operate the LCD module exceed the absolute maximum ratings.
14.
Keep the signal line as short as possible to prevent noisy signal applying to LCD
module.
15.
Never apply signal to the LCD module without power supply.
16.
IC chip (eg. TAB or COG) is sensitive to the light. Strong lighting environment could
possibly cause malfunction. Light sealing structure casing is recommend.
17.
LCD module reliability may be reduced by temperature shock.
18.
When storing the LCD module, avoid exposure to the direct sunlight, high humidity, high
temperature or low temperature. They may damage or degrade the LCD module
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