LM3122AGG-2 LCD Module User Manual Preliminary release www.topwaydisplay.com www.topwaysz.com Document Name: LM3122AGG-2-Manual-Rev0.1 Page: 1 of 11

LCD Module User Manual www.topwaydisplay.com www.topwaysz.com Document Name: LM3122AGG-2-Manual-Rev0.1 Page: 2 of 11

LCD Module User Manual Display Specifications 1) LCD Display Mode : FSTN, Negative, Transmissive 2) Display Color : Display Data = “1” : Light Gray (*1) : Display Data = “0” : Dark Gray (*2) 3) Viewing Angle : 12 H 4) Driving Method : 1/32 duty, 1/5bias 5) Back Light : Green LED backlight Note: *1. Color tone may slightly change by Temperature and Driving Condition. *2. The Color is defined as the inactive / background color Mechanical Specifications 1) Outline Dimension : 246.0 x 55.2 x 12.5MAX (see attached Outline Drawing for details) Block Diagram LCD Power & Booster Circuit www.topwaydisplay.com...

LCD Module User Manual 1.4 Terminal Functions Pin Pin I/O Descriptions No. Name 1 VSS Power Negative Power Supply, Ground (0V) 2 VDD Power Positive Power Supply 3 VDD 4 A0 Input A0 = H; DB0 – DB7 = Display Data A0 = L; DB0 – DB7 = Instruction Data 5 /WR1 Input Write Enable Signal for left section of the LCD module 6 VDD Power Positive Power Supply 7 VDD 8 /WR2 Input Write Enable Signal for middle section of the LCD module 9 DB0 Input Data bus for display data or instruction data : : 16 DB7 17 RES Input Reset signal (*2) Resetting: rising edge and falling edge of RES Normal Running: RES=Low 18...

LCD Module User Manual 2. Absolute Maximum Ratings Items Supply Voltage Operating Temperature Storage Temperature Condition VSS = 0V No Condensation 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. Items Operating Voltage Input High Voltage Input Low Voltage Operating Current Note: *1. *2. The variation of Operating Voltage may affect the...

LCD Module User Manual Item Address hold time Address setup time System cycle time Control pulse width Data setup time Data hold time Rise time Fall time Host Write Timing Diagram www.topwaydisplay.com www.topwaysz.com Document Name: LM3122AGG-2-Manual-Rev0.1 Page: 6 of 11

LCD Module User Manual Optical Characteristics Item Viewing Direction Viewing Angle x Viewing Angle y On Time Off Time Contrast LCD Operating Voltage 4.2 Vop=typ. Vop=typ. Vop=typ. X,Y = 0, Vop=typ. X,Y = 0, Vop=typ. X,Y = 0, Vop=typ. X,Y = 0 4.2.1 Viewing Direction Viewing Direction = direction (Φ) that provide the best display result, when Θ = 30° 4.2.2 Viewing Angle Viewing Angle x = total viewing angle along x-axis (Θ1) Viewing Angle y = total viewing angle along y-axis (Θ2) www.topwaydisplay.com www.topwaysz.com

LCD Module User Manual Response Time Brightness of Selected Segment (b) Brightness of Unselected Segment (a) Vop = the Driving Voltage producing the maximum value of K www.topwaydisplay.com www.topwaysz.com Document Name: LM3122AGG-2-Manual-Rev0.1 Page: 8 of 11

LCD Module User Manual 5. Function Specifications 5.1 Basic Setting To drive the LCD module correctly and provide normally display, please use the following setting Select duty = 1/32 Static drive ON/OFF = OFF (Normal Driving) ADC = 0 Display Start Line = 0 DISPLAY ON/OFF = ON Read-Modify-Write = OFF 5.2 Resetting the LCD module The LCD module should be initialized by the hardware reset during power on sequence. Keep RES terminal at low level, during the power on. After the power supply is stable, a hardware reset signal should apply to the RES terminal. The LCD module will be initialized at...

LCD Module User Manual LCD Display (front view) Note: *1. Display Start Line = 0 *2. ADC = 0 *3. The Display Data for the left section could be accessed by /WR1. The Display Data for the middle section could be accessed by /WR2. The Display Data for the right section could be accessed by /WR3. Display Command Display ON/OFF Set Display Start Line Set Page Address Set Column Address Write Display Data Display Start Line (0 ~31) 0 = OFF 1 = ON (Display Data RAM is not affected) Specifies RAM line corresponding to the top line of display Set Page Address Register Set Column Address Counter Display...

LCD Module User Manual The LCD panel is made by glass. Any mechanical shock (eg. dropping form high place) will damage the LCD module. Do not add excessive force on the surface of the display, which may cause the Display color change abnormally. The polarizer on the LCD is easily get scratched. If possible, do not remove the LCD protective film until the last step of installation. Never attempt to disassemble or rework the LCD module. Only Clean the LCD with Isopropyl Alcohol or Ethyl Alcohol. Other solvents (eg. water) may damage the LCD. When mounting the LCD module, make sure that it is free...