LM240128CCW-1_V01 TOPWAY | Alldatasheet
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URL: www.topwaydisplay.com www.topwaysz.com Document Name: LM240128CCW-1-Manual-Rev0.2.DOC Page: 1 of 13 LM240128CCW-1 LCD Module User Manual Prepared by: Dong Checked by: Approved by: Date: 2018-02-26 Date: Date: Rev. Descriptions Release Date
0.1 Preliminary release 2014-5-6
0.2 Revise Operating Temperature & Storage Temperature 2018-02-26
TOPWAY LCD Module User Manual LM240128CCW-1 URL: www.topwaydisplay.com www.topwaysz.com Document Name: LM240128CCW-1-Manual-Rev0.2.DOC Page: 2 of 13 Table of Content
TOPWAY LCD Module User Manual LM240128CCW-1 URL: www.topwaydisplay.com www.topwaysz.com Document Name: LM240128CCW-1-Manual-Rev0.2.DOC Page: 3 of 13 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 : 1/128 duty, 1/12 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 : 129.8 x76.0 x 7.3MAX (mm) (See attached Outline Drawing for details)
1.3 Block Diagram
D0~D7 CS0,CS1, RST, CD, WR1, WR0 Backlight Circuit LCD Panel 240×128Pixels UC1698 or equivalent BLK VB0+,VB1+,VB1-,VB0-, VS-, VS+ VDD23,VLCDIN, VLCDOUT TST4,BM1,BM0
TOPWAY LCD Module User Manual LM240128CCW-1 URL: www.topwaydisplay.com www.topwaysz.com Document Name: LM240128CCW-1-Manual-Rev0.2.DOC Page: 4 of 13
1.4 Terminal Functions
Pin No. PIN Name I/O 8080 mode 6800 mode
1 NC - Connect to VSS
2 NC - Connect to VSS
3 VLCDOUT High voltage LCD Power supply, connect to VLCDIN
4 VLCDIN High voltage LCD Power Input, connect to VLCDOUT
5 VS+
6 VS-
7 VB0-
8 VB1-
9 VB1+
10 VB0+
LCD driving voltage supply terminals
11 VDD23 Power Connect to VDD
12 VDD Power Positive power supply
13 VSS Power Negative power supply,0V
14 TST4 - Not use(Leave open)
15 BM1
16 BM0
Input BM1=L,BM0=L BM1=L,BM0=H CS1 Input Chip Select CS1=L, disable access to the LCD module CS1=H, enable access to the LCD module CS0 Input Chip Select CS0=L, enable access to the LCD module CS0=H, disable access to the LCD module
19 CD Input Register Select
CD = H, Transferring the Display Data CD = L, Transferring the Control Data
20 WR1
21 WR0
WR0=LH, WR1=H; Data or Instruction latch into the LCD module WR0=H, WR1=LH; Data or Status read form the LCD module WR0=H, WR1=H; Data or Status read form the LCD module WR0=L, WR1=HL; Data or Instruction latch into the LCD module RST Input Reset signal RST = L, Initialization is executed RST = H, Normal running. 23 D0 : : 30 D7 I/O 8-bit Data bus; Three state I/O terminal for display data or instruction data when CS0=H, D0~D7=High Impedance
31 NC - Connect to VSS
32 NC - Connect to VSS
1 BLA Supply Positive power for LED backlight
2 BLK Supply Negative power for LED backlight
TOPWAY LCD Module User Manual LM240128CCW-1 URL: www.topwaydisplay.com www.topwaysz.com Document Name: LM240128CCW-1-Manual-Rev0.2.DOC Page: 5 of 13 2. 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 -0.3 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
VSS=0V, VDD=3.0V, TOP=25C Items Symbol MIN. TYP. MAX. Unit Condition / Application Pin Operating Voltage V DD 2.7 3.0 3.3 V VDD Input High Voltage V IH 0.8xV DD - V DD V Input Low Voltage V IL V SS - 0.2xV DD V RST, CS1,CS0, DC, D0~D7, WR0, WR1 Operating Current I DD - 1.6 13.3 mA VDD
3.2 LED Backlight Circuit Characteristics
BLK= 0V,BLA= 3.3V, TOP =25C Items Symbol MIN. TYP. MAX. Unit Applicable Pin Forward Voltage BLA - 3.3 - V BLA Forward Current I BLA - 102 120 mA BLA Cautions: Exceeding the recommended driving current could cause substantial damage to the backlight and shorten its lifetime. BLK BLA No. of LED = 6pcs
TOPWAY LCD Module User Manual LM240128CCW-1 URL: www.topwaydisplay.com www.topwaysz.com Document Name: LM240128CCW-1-Manual-Rev0.2.DOC Page: 6 of 13
3.3 AC Characteristics
3.3.1 8080 Mode System Bus Timing VSS=0V, VDD=3.0V, TOP=25C Item Symbol MIN. TYP. MAX. Unit Address setup time (CD) tas80 5 - - ns Address hold time (CD) tah80 5 - - ns System cycle time (8bit) tcy80 145 - - ns Read pulse width tpwr80 107 - - ns Write pulse width tpww80 65 - - ns High pulse width (read) thpw80 63 - - ns High pulse width (write) thpw80 67 - - ns Data setup time tds80 38 - - ns Data hold time tdh80 5 - - ns Data access time tacc80 - - 75 ns Data output disable time tod80 15 - 38 ns Chip select setup time tcssa80 7 - - ns Chip select hold time tcsh80 7 - - 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.
TOPWAY LCD Module User Manual LM240128CCW-1 URL: www.topwaydisplay.com www.topwaysz.com Document Name: LM240128CCW-1-Manual-Rev0.2.DOC Page: 7 of 13 3.3.2 6800 Mode System Bus Timing Item Symbol MIN. TYP. MAX. Unit Address setup time (CD) Tas68 5 - - ns Address hold time (CD) Tah68 5 - - ns System cycle time (8bit) Tcy68 90 - - ns Read pulse width Tpwr68 65 - - ns Write pulse width Tpww68 55 - - ns High pulse width (read) Tlpw68 50 - - ns High pulse width (write) T lpw68 55 - - ns Data setup time Tds68 38 - - ns Data hold time Tdh68 5 - - ns Data access time Tacc68 - - 75 ns Data output disable time Tod68 15 - 38 ns Chip select setup time Tcssa68 7 - - ns Chip select hold time Tcsh68 7 - - 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.
3.3.3 Reset Timing
VSS=0V, VDD=3.0V, TOP=25C Item Symbol MIN. TYP. MAX. Unit Reset LOW pulse width trw 4 - - Internal Resetting time trd 13 ms Note: *1.All timing is using 20% and 80% of VDD as the reference.
TOPWAY LCD Module User Manual LM240128CCW-1 URL: www.topwaydisplay.com www.topwaysz.com Document Name: LM240128CCW-1-Manual-Rev0.2.DOC Page: 8 of 13 4. Function specifications
4.1 Application circuit (Example)
NOTE:8080 mode(Default setting),please refer to UC1698E datasheet for details.
4.2 Resetting the LCD module
The LCD module should be initialized by using RST terminal. While turning on the VDD and VSS power supply, maintain /RST terminal at LOW level. After the power supply stabilized, release the reset terminal (RST=HIGH)
4.3 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.
4.4 Display Memory Map
no. LCD Display (front view) st nd rd 126 th 127 th 128 th Column no. 1 st nd rd th th th 238 th 239 th 240 th 241 th 242 th Column Address 00h 01h 4Fh 50h Note: *1. This mono LCM is driven by a color LCD driver. Every three dots are being driven by R G B segment driver. *2. The above is based on: - 4R4G4B setting, each dot will be driv en by 4bit; LC[7:6]=0:1, DC[4]=1 - Mirror Y direction; LC[2]=1 - Normal X direction; LC[1]=0 - Color Mapping as RGB; LC[5]=1 *3. For details please refer to UC1698 datasheet Non-displaying Area 240 x 128 pixels
TOPWAY LCD Module User Manual LM240128CCW-1 URL: www.topwaydisplay.com www.topwaysz.com Document Name: LM240128CCW-1-Manual-Rev0.2.DOC Page: 9 of 13
4.5 Display Commands
The LCD module contains register, which control the operation. These register can be modified by commands. The following table is a summary of the control registers, their meaning and their default value.
4.5.1 Register Table
TOPWAY LCD Module User Manual LM240128CCW-1 URL: www.topwaydisplay.com www.topwaysz.com Document Name: LM240128CCW-1-Manual-Rev0.2.DOC Page: 10 of 13 Register Table (continue)
TOPWAY LCD Module User Manual LM240128CCW-1 URL: www.topwaydisplay.com www.topwaysz.com Document Name: LM240128CCW-1-Manual-Rev0.2.DOC Page: 11 of 13 Register Table (continue) Note: Please refer to UC1698 data sheet for details
TOPWAY LCD Module User Manual LM240128CCW-1 URL: www.topwaydisplay.com www.topwaysz.com Document Name: LM240128CCW-1-Manual-Rev0.2.DOC Page: 12 of 13
4.5.2 Command Table
The following is the list of host command supported. Note: Please refer to UC1698 data sheet for details
TOPWAY LCD Module User Manual LM240128CCW-1 URL: www.topwaydisplay.com www.topwaysz.com Document Name: LM240128CCW-1-Manual-Rev0.2.DOC Page: 13 of 13 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