DISPLAY Elektronik GmbH LCD MODULE DEM 20485 SYH-LY-CYR22 Product Specification Version : 1 21.Aug.
GENERAL SPECIFICATION MODULE NO. : DEM 20485 SYH-LY-CYR22 CUSTOMER P/N VERSION NO. CHANGE DESCRIPTION DATE 0 ORIGINAL VERSION 31.03.2004 1 CHANGE IC 14.08.2008 PREPARED BY: CXG DATE: 14.08.2008 APPROVED BY: MH DATE: 21.08.
DEM 20485 SYH-LY-CYR22 Product Specification CONTENTS 1. FUNCTIONS & FEATURES---------------------------------------------------------------------------------- 2 2. MECHANICAL SPECIFICATIONS ------------------------------------------------------------------------- 2 3. BLOCK DIAGRAM -------------------------------------------------------------------------------------------- 3 4. EXTERNAL DIMENSIONS ---------------------------------------------------------------------------------- 3 5.
DEM 20485 SYH-LY-CYR22 Product Specification 1. FUNCTIONS & FEATURES MODULE NAME LCD TYPE DEM 20485 SYH-LY-CYR22 STN Yellow Green Transflective Positive Mode z z z z z z z Viewing Direction Driving Scheme Power Supply Voltage Backlight Color VLCD Display contents Internal Memory z z z z CGROM Operating Temperature Storage Temperature Interface : 6 O’clock : 1/16 Duty Cycle, 1/5 Bias : 5.0V (typ.) : Yellow Green : 4.5V (typ.
DEM 20485 SYH-LY-CYR22 Product Specification 3. BLOCK DIAGRAM DB0~DB7 E R/W RS COM1~COM16 LCD Controller LSI ST7066U-0T V0 SEG41 ~SEG120 SEG1~SEG40 VDD VSS LCD PANEL 4Line*20characters SEGMENT DRIVER ST7063 SEG121 ~SEG200 SEGMENT DRIVER ST7063 Control signals A BACKLIGHT K 4.
DEM 20485 SYH-LY-CYR22 Product Specification 5. PIN ASSIGNMENT Pin No. Symbol 1 VSS Ground terminal of module. 2 VDD Power terminal of module+5.0V. 3 V0 4 RS Power Supply for liquid crystal drive. Register select RS = 0…Instruction register R/W RS = 1…Data register Read /Write R/W = 1…Read 5 Function R/W = 0…Write 6 E Enable 7 DB0 8 DB1 9 DB2 10 DB3 11 DB4 12 DB5 13 DB6 14 DB7 15 LED – (K) Please also refer to 6.1 PCB drawing and description.
DEM 20485 SYH-LY-CYR22 Product Specification DESCRIPTION: 6-1-1.The polarity of the pin 15 and the pin 16 : symbol state symbol J3,J5 J2,J4 LED Polarity 15 Pin 16 Pin J2,J4 Each solder-bridge Each open Each closed Anode Cathode J3,J5 Each solder-bridge Each closed Each open Cathode Anode Note: In application module, J3=J5=closed, J2=J4=open 6-1-2.The metal-bezel is set on ground when the J1 is closed. Note: In application module, J1=closed 6-1-3.
DEM 20485 SYH-LY-CYR22 Product Specification 8.
DEM 20485 SYH-LY-CYR22 Product Specification 10. ELECTRICAL CHARACTERISTICS 10-1 DC Characteristics(VDD=4.5V~5.5V,Ta=-20~+70°C) Standard Value MIN TYP MAX Test Condition VDD 4.5 5 5.5 ------- V Supply Current IDD ---- 0.35 0.6 VDD=5V,fosc=270kHz mA LCD Driving Voltage VLCD 3.0 4.5 13.0 VDD-V5 (1/5,1/4 Bias) V Item Symbol Operating Voltage Unit 10-2 AC Characteristics (VDD=4.5V~5.5V, Ta=-20~+70°C) 10-2-1.
DEM 20485 SYH-LY-CYR22 Product Specification 10-2-2.
DEM 20485 SYH-LY-CYR22 Product Specification 11. CONTROL AND DISPLAY COMMAND Command RS R/W DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0 Clear Display 0 0 0 0 0 0 0 0 0 1 Execution time (fosc=270KHz) Remark 1.52ms Write”20H” to DDRAM. And set DDRAM address to “00H” from AC Return home 0 0 0 0 0 0 0 0 1 x 1.52ms Set DDRAM address to “00H” from AC and return cursor to its original position if shifted. The contents of DDRAM are not changed.
DEM 20485 SYH-LY-CYR22 Product Specification 12.
DEM 20485 SYH-LY-CYR22 Product Specification 13. LCD MODULES HANDLING PRECAUTIONS Please remove the protection foil of polarizer before using. The display panel is made of glass. Do not subject it to a mechanical shock by dropping it from a high place, etc. If the display panel is damaged and the liquid crystal substance inside it leaks out, do not get any in your mouth. If the substance comes into contact with your skin or clothes promptly wash it off using soap and water.
