LM6020ACA TOPWAY | Alldatasheet
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Technical content
URL: www.topwaydisplay.com www.topwaysz.com Document Name: LM6020ACA-Manual-Rev0.1 Page: 1 of 14 LM6020ACA LCD Module User Manual Prepared by: zhou Checked by: Approved by: Date:2014-4-22 Date: Date: Rev. Descriptions Release Date
0.1 Preliminary release 2014-4-22
A ll data sheet.com
TOPWAY LCD Module User Manual LM6020ACA URL: www.topwaydisplay.com www.topwaysz.com Document Name: LM6020ACA-Manual-Rev0.1 Page: 2 of 14 Table of Content A ll data sheet.com
TOPWAY LCD Module User Manual LM6020ACA URL: www.topwaydisplay.com www.topwaysz.com Document Name: LM6020ACA-Manual-Rev0.1 Page: 3 of 14 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 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 : 43.4 x 30.6 x 2.0 (mm) (exclude FPC terminal) (See attached Outline Drawing for details)
1.3 Block Diagram
128×64Pixels VDD ST7565 or equivalent VSS D0~D7 /CS1, /RD, /WR, /RES, A0 C86, P/S,IRS V0~V4, VR,V0, VOUT C1P, C1N, C2P, C2N, C3P, C4P A ll data sheet.com
TOPWAY LCD Module User Manual LM6020ACA URL: www.topwaydisplay.com www.topwaysz.com Document Name: LM6020ACA-Manual-Rev0.1 Page: 4 of 14 2. Terminal Functions Descriptions PIN NO. PIN Name I/O 8-bit parallel 8080 mode 8-bit parallel 6800 mode Serial mode 1 /CS1 Input Chip Select /CS1=L, enable access to the LCD module /CS1=H, disable access to the LCD module 2 /RES 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 (R/W) Input /WR=L ÆH, /RD=H; Data or Instruction latch into the LCD module 5 /RD (E) Input /WR=H, /RD=L; Data or Status read form the LCD module R/W=H,E=H; Data or Status read from the LCD module R/W=L,E=HÆL; Data or Status latch into the LCD module Not used, Leave open or pull Hi
6 D0 I/O
: : I/O
11 D5 I/O
Not used, Leave open
12 D6(SCL) I/O Serial clock input
13 D7(SI) I/O
8-bit Data bus; Three state I/O terminal for display data or instruction data when /CS=H, 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 --
18 C1N --
19 C1P --
20 C2P --
21 C2N --
22 C4P --
Power Booster Circuit Capacitance terminals
23 VRS -- Internal output VREG power supply (leave open)
24 V4 --
: : :
28 V0 --
LCD driving voltage supply terminals
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 A ll data sheet.com
TOPWAY LCD Module User Manual LM6020ACA URL: www.topwaydisplay.com www.topwaysz.com Document Name: LM6020ACA-Manual-Rev0.1 Page: 5 of 14 3. Absolute Maximum Ratings Items Symbol Min. Max. Unit Condition Supply Voltage VDD -0.3 +3.6 V V SS = 0V Input Voltage VIN -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
VSS=0V, VDD=3.0V, TOP=25°C Items Symbol MIN. TYP. MAX. Unit Condition / Application Pin Operating Voltage VDD 2.7 - 3.3 V VDD Input High Voltage VIH 0.85xV DD - V DD V Input Low Voltage VIL V SS - 0.15xV DD V /RES, /CS1, A0, /WR, /RD, 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 IDD - 0.3 1.5 mA VDD A ll data sheet.com
TOPWAY LCD Module User Manual LM6020ACA URL: www.topwaydisplay.com www.topwaysz.com Document Name: LM6020ACA-Manual-Rev0.1 Page: 6 of 14
4.2 AC Characteristics
4.2.1 8080 Mode System Bus Timing VSS=0V, VDD=3.0V, TOP=25°C Item Symbol MIN. TYP. MAX. Unit System cycle time tcyc8 500 - - ns Address setup time (A0) taw8 10 - - ns Address hold time (A0) tah8 10 - - ns Control LOW pulse width (/RD) tccl r 275 - - ns Control LOW pulse width (/WR) tcclw 275 - - ns Control HIGH pulse width (/RD) tcch r 225 - - ns Control HIGH pulse width (/WR) tcchw 225 - - ns Data setup time tds8 50 - - ns Data hold time tdh8 10 - - ns /RD access time (*2) tacc8 - - 175 ns Output disable time (*2) tch8 13 - 125 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. A ll data sheet.com
TOPWAY LCD Module User Manual LM6020ACA URL: www.topwaydisplay.com www.topwaysz.com Document Name: LM6020ACA-Manual-Rev0.1 Page: 7 of 14 4.2.2 6800 Mode System Bus Timing VSS=0V, VDD=3.0V, TOP=25°C Item Symbol MIN. TYP. MAX. Unit System cycle time tcyc6 500 - - ns Address setup time (A0) taw6 10 - - ns Address hold time (A0) tah6 10 - - ns Control LOW pulse width (R/W) tewlr 275 - - ns Control LOW pulse width (R/W) tewlw 275 - - ns Control HIGH pulse width (/RD) tewhr 225 - - ns Control HIGH pulse width (R/W) tewhw 225 - - ns Data setup time tds6 50 - - ns Data hold time tdh6 10 - - ns /RD access time (*2) tacc6 - - 175 ns Output disable time (*2) tch6 13 - 125 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. A ll data sheet.com
TOPWAY LCD Module User Manual LM6020ACA URL: www.topwaydisplay.com www.topwaysz.com Document Name: LM6020ACA-Manual-Rev0.1 Page: 8 of 14
4.2.3 Serial Mode Interface
VSS=0V, VDD=3.0V, TOP=25°C Item Symbol MIN. TYP. MAX. Unit Serial Clock Period tscyc 125 - - ns Address setup time (A0) tsas 38 - - ns Address hold time (A0) tsah 25 - - ns SCL “H” pulse width tshw 63 - - ns SCL “L” pulse width tslw 63 - - ns Data setup time tsds 38 - - ns Data hold time tsdh 25 - - ns CS-SCL time tcss 38 - - ns CS-SCL time tcsh 75 - - 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.
4.3 Reset Timing
VSS=0V, VDD=3.0V, TOP=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. A ll data sheet.com
TOPWAY LCD Module User Manual LM6020ACA URL: www.topwaydisplay.com www.topwaysz.com Document Name: LM6020ACA-Manual-Rev0.1 Page: 9 of 14 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 Note: Please refer to the ST7565 data sheet for details
5.3 The Parallel Interface
Shared 6800 Mode 8080 Mode A0 R/W E /RD /WR Function H H H L H Reads the display data H L HÆL H LÆH Writes the display data L H H L H Status read L L HÆL H LÆH Write control data(command)
5.4 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. A ll data sheet.com
TOPWAY LCD Module User Manual LM6020ACA URL: www.topwaydisplay.com www.topwaysz.com Document Name: LM6020ACA-Manual-Rev0.1 Page: 10 of 14
5.5 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.
5.6 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)
5.7 Display Memory Map
Page address data LCD Display (front view) Column Address 00h Æ 7Fh Note: *1. ADC = 0 (normal) *2. SHL Selection = 1 (reverse) *3. Initial Display Line = 0 128x64 pixels A ll data sheet.com
TOPWAY LCD Module User Manual LM6020ACA URL: www.topwaydisplay.com www.topwaysz.com Document Name: LM6020ACA-Manual-Rev0.1 Page: 11 of 14
5.8 Display Commands
No. Instructions /RD /WR D0 Function
1 Display ON/OFF 0 1 0 1 0 1 0 1 1 1
DON=0, display off DON=1, display oin
2 Display start line set 0 1 0 0 1 Display start
Sets the display RAM display start line address
3 Set Page Address 0 1 0 1 0 1 1 Page
Address Set the display RAM page address Set Column Address (Upper-4-bits) 0 1 0 0 0 0 1 Col. Add. Upper Set the upper-4-bit of column address counter
4 Set Column Address
(Lower-4-bits) 0 1 0 0 0 0 0 Col. Add. Lower Set the lower-4-bit of column address counter
5 Read Status 0 0 1 Status 0 0 0 0 Read the status data
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
8 ADC Select 0 1 0 1 0 1 0 0 0 0
Sets the display RAM address SEG output correspondence ADC= 0,normal . ADC=1, reverse
9 Normal/Reverse Display 0 1 0 1 0 1 0 0 1 1
REV=0, Normal display REV=1, Reverse display
10 Entire Display ON/OFF 0 1 0 1 0 1 0 0 1 0
EON=0, Normal display EON=1, Entire display ON
11 Set LCD Bias 0 1 0 1 0 1 0 0 0 1
Set the LCD driving voltage bias BIAS=0, 1/9 BIAS BIAS=1, 1/7 BIAS
12 Set Read-Modify-Write 0 1 0 1 1 1 0 0 0 0 0
Enter the “Read-Modify-Write” mode column address counter will increase in each “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
15 SHL Select 0 1 0 1 1 0 0
SHL *** Set the COM scanning direction SHL=0, Normal display SHL=1, Flipped in y direction * = don’t care terms
16 Power Control Set 0 1 0 0 0 1 0 1
Set the power circuit operation mode VF: LCD Supply Voltage Follower VR: LCD Supply Voltage Regulator VC: LCD Supply Voltage Converter (1=ON, 0=OFF)
17 Regulator Resistor Select 0 1 0 0 0 1 0 0 Radio
setting Set the built-in resistor ratio (Rb/Ra) 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. A ll data sheet.com
TOPWAY LCD Module User Manual LM6020ACA URL: www.topwaydisplay.com www.topwaysz.com Document Name: LM6020ACA-Manual-Rev0.1 Page: 12 of 14
5.9 Display Commands (continue)
No. Instructions /RD /WR D0 Function Electronic volume mode set 0 1 010000001 S e t r e f e r e n c e v o l t a g e m o d e 18 Electronic volume register set 0 1 0 ** Electronic Control value Set reference voltage register (Display contrast value) Display OFF + Entire Display ON
20 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 ST7565 data sheet.
5.9.1 Power off the LCD Module
It recommends that enter Power Save mode before power off the LCD module.
5.9.2 Refreshing The LCD Module
It recommends that the operating modes and display contents be refreshed periodically to prevent the effect of unexpected noise. A ll data sheet.com
TOPWAY LCD Module User Manual LM6020ACA URL: www.topwaydisplay.com www.topwaysz.com Document Name: LM6020ACA-Manual-Rev0.1 Page: 13 of 14
5.10 Basic Operating Sequence (example)
5.10.1 Initialization Sequence
Turn on Power Supply VDD & VSS Release the /RES Reset Signal for timing details LCD bias = 1/9 010100010 A 2 h LCD panel Characteristic ADC = normal 010100000 A 0 h No flip on x-direction (SEG) SHL = reverse 011001000 C 8 h Flip on y-direction (COM) Initial Display Line=0 0 0 1 0 0 0 0 0 0 40h i.e. Display RAM “page 0 - D0” Matched to top line of the LCD Power Control Voltage Follower = OFF Voltage Regulator = OFF Voltage Converter = ON 000101100 2 C h Turn on the internal Voltage Converter and wait until VOUT stable. Power Control Voltage Follower = OFF Voltage Regulator = ON Voltage Converter = ON 000101110 2 E h Turn on the Internal Voltage Regulator and wait until VOUT stable. Power Control Voltage Follower = ON Voltage Regulator = ON Voltage Converter = ON 000101111 2 F h Turn on the internal Voltage Follower and wait until VOUT stable Regulator Resistor Select 0 0 0 1 0 0 1 0 1 25h Set the built-in resistor ratio to middle Set Reference Voltage Mode 0 1 0 0 0 0 0 0 1 81h Set to the middle of the range It may be adjusted for achieving the best display contrast Set Reference Voltage Resistor 0 0 0 1 0 0 0 0 0 20h Display ON 010101111 A F h Turn on the LCD display Set Page Address = 0 010110000 B 0 h Specify the Display Data RAM page address to 00h Set Column Address (Upper-4bit=0) 0 0 0 0 1 0 0 0 0 10h Set Column Address (Lower-4bit=0) 0 0 0 0 0 0 0 0 0 00h Specify the Display Data RAM column address to 00h Write Display Data 1 Display Data Write data to Display Data RAM. After write, the internal Column Address Counter will be increased by 1 automatically Write Other Display Data … A ll data sheet.com
TOPWAY LCD Module User Manual LM6020ACA URL: www.topwaydisplay.com www.topwaysz.com Document Name: LM6020ACA-Manual-Rev0.1 Page: 14 of 14 6. 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 A ll data sheet.com