DISPLAY Elektronik GmbH LCD MODULE DEM 20485 SYH-LY Product Specification Version: 3 08.01.
GENERAL SPECIFICATION MODULE NO. : DEM 20485 SYH-LY CUSTOMER P/N Version No. Change Description Date 0 Original Version 29.10.2001 1.1.0 Change IC 14.11.2007 1.1.1 Change PCB Description 14.11.2008 2 Add Version 05.05.2009 3 Change Maximum Parameters 08.01.2018 PREPARED BY: PS DATE: 08.01.2018 APPROVED BY: MH DATE: 08.01.
DEM 20485 SYH-LY Product Specification CONTENTS 1. FUNCTIONS & FEATURES ----------------------------------------------------------------- 2 2. MECHANICAL SPECIFICATIONS -------------------------------------------------------- 2 3. EXTERNAL DIMENSIONS ----------------------------------------------------------------- 3 4. BLOCK DIAGRAM -------------------------------------------------------------------------- 3 5.
DEM 20485 SYH-LY Product Specification 1.FUNCTIONS & FEATURES MODULE NAME LCD Type Remark DEM 20485 SYH-LY STN Yellow Green Transflective Positive Mode --- l l l l l l l Viewing Direction Driving Scheme Power Supply Voltage VLCD (VDD-V0) Backlight Color Display contents Internal Memory l l CGROM Interface : 6 O'clock : 1/16 Duty Cycle, 1/5 Bias : 5 Volt (typ.) : 4.5 Volt (typ.
DEM 20485 SYH-LY Product Specification 3. EXTERNAL DIMENSIONS ( unit: mm) 4.
DEM 20485 SYH-LY Product Specification 5. PIN ASSIGNMENT Function Pin No.
DEM 20485 SYH-LY Product Specification 6. PCB DRAWING AND APPLICATION 6. PCB Drawing and Description Note: on application module, R1~R5=820Ω, R6=91KΩ Description : 6-1. The polarity of the pin 15 and the pin 16 LED Polarity 15 Pin 16 Pin J3,J5 J2, J4 Each open Each closed Anode Cathode Each closed Each open Cathode Anode Note: on application module B00: J3=J5= closed, J2=J4=open B01: J3=J5= open, J2=J4=closed 6-2. The metal-bezel is set on ground when the J1 is closed.
DEM 20485 SYH-LY Product Specification 7. BACKLIGHT ELECTRICAL/OPTICAL SPECIFICATIONS 7.1 Absolute Maximum Ratings (Ta=25°C) Item Symbol Absolute Maximum Forward Current Ifm Peak Forward Current Ifp Reverse Voltage Vr Power Dissipation Pd Conditions 1 msec plus 10% guty cycle 7.2 Electrical-Optical Characteristics (Ta=25°C) Item Symbol Min. Forward Voltage Vf 3.8 Reverse Current Ir Dominant Wavelength 569 λD Spectral Line Half Width Δλ Luminance Lv 7.3 Backlight Drawing ( Typ. 4.0 572 25 (140) Max.
DEM 20485 SYH-LY Product Specification 8. DISPLAY DATA RAM (DDRAM) 9. MAXIMUM ABSOLUTE POWER LIMIT Item Symbol Standard value Unit Power Supply Voltage (1) VDD -0.3 ~ +6.0 V Power Supply Voltage (2) VLCD VDD-10.0 ~ VDD+0.3 V VIN -0.3 ~ VDD+0.3 V VLED1 4 ~ 4.5 V Operating Temperature Topr -20 ~ +70 °C Storage Temperature Tstg -30 ~ +80 °C Input Voltage Voltage for Backlight *Voltage greater than above may damage to the Circuit.
DEM 20485 SYH-LY Product Specification 10. CONTROL AND DISPLAY COMMAND Command RS Clear Display 0 R/W DB7 DB6 DB5 DB4 DB3 0 0 0 0 0 0 DB2 DB1 DB0 Execution time (fosc=270KHz) Remark 0 0 1 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 Product Specification 11.
DEM 20485 SYH-LY Product Specification 12. ELECTRICAL CHARACTERISTICS 12-1-1 DC Characteristics (VDD=4.5V~5.5V, Ta=25°C) Item Standard Value Symbol Min Typ Max Test Condition Unit Operating Voltage VDD 4.5 5 5.5 ------- V Supply Current IDD ---- 0.35 0.6 VDD=5V,fosc=270kHz mA VLCD 3.0 4.5 7.0 VDD-V0(5, 1/4 Bias) V LCD Driving Voltage 12-2 AC Characteristics (VDD=4.5V~5.
DEM 20485 SYH-LY Product Specification 12-2-2 Read Mode (Reading Data from Module to MPU ) Characteristic E Cycle Time Symbol tC Min 1200 Type --- Max --- Unit ns Test PIN E --- --- 25 ns E E Fall Time tR tF --- --- 25 ns E E Pulse width tpW 140 --- --- ns E Address Setup Time tAS 0 --- --- ns R/W,RS,E Address Hold Time tAH 10 --- --- ns R/W,RS,E Data Setup Time tDDR --- --- ns DB0~DB7 Data Hold Time tH 10 --- 100 --- ns DB0~DB7 E Rise Time RS VIH1 V
DEM 20485 SYH-LY Product Specification 13. QUALITY DESCRIPTION DEFECT SPECIFICATION: Specific type-related items are covered in this sheet. a: Table for Cosmetic defects (Note: nc = not counted). Sizes and number of defects (Max. Qty) Segment Deformation (Notched segments L W Line shape W nc 150< d £ 300 3 Black or White Lines W Pinhole d £ 150 Black or White Spots L L L L W W L L Max. Max. defect size [mm] d or L Quantity.
DEM 20485 SYH-LY Product Specification 14. MODULE ACCEPT QUALITY LEVEL (AQL). 14.1 AQL Standard Value: Critical Defect =0.1, Major Defect=0.65; Minor Defect =2.5. 14.2 Inspection Plan: MIL-STD-105E, Normal Inspection Level II, Single Sampling Plan 15. RELIABILITY TEST Operating life time: Longer than 50000 hours (at room temperature without direct irradiation of sunlight) Reliability characteristics shall meet following requirements.
DEM 20485 SYH-LY Product Specification 16. LCD MODULES HANDLING PRECAUTIONS n Please remove the protection foil of polarizer before using. n The display panel is made of glass. Do not subject it to a mechanical shock by dropping it from a high place, etc. n 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 come into contact with your skin or clothes promptly wash it off using soap and water.
