Datasheet

ManualsBrandsDisplay Elektronik ManualsDisplaysAlphanumeric LCD Display 4.75 mm 4 x 20

11.09.2008

DISPLAY Elektronik GmbH

DEM 20485 FGH-PW

LCD MODULE

Product Specification

Version : 1

1.0

Summary of content (15 pages)

PAGE 1
DISPLAY Elektronik GmbH LCD MODULE DEM 20485 FGH-PW Product Specification Version : 1.1.0 11.09.
PAGE 2
GENERAL SPECIFICATION MODULE NO. : DEM 20485 FGH-PW VERSION NO. CHANGE DESCRIPTION DATE 0 ORIGINAL VERSION 08.02.2007 1 MODIFY SECTION 6.1 18.04.2007 1.1.0 CHANGE IC 14.11.2007 PREPARED BY: LSY DATE: 14.11.2007 APPROVED BY: MH DATE: 11.09.
PAGE 3
DEM 20485 FGH-PW Product Specification CONTENTS 1. FUNCTIONS & FEATURES .................................................................................................................2 2. MECHANICAL SPECIFICATIONS.....................................................................................................2 3. EXTERNAL DIMENSIONS...................................................................................................................3 4. BLOCK DIAGRAM ...................................
PAGE 4
DEM 20485 FGH-PW Product Specification 1. FUNCTIONS & FEATURES MODULE LCD TYPE DEM 20485 FGH-PW FSTN Transflective Positive Mode z z z z z z z z z Viewing Direction Driving Scheme Power Supply Voltage Backlight Color VLCD Adjustable For Best Contrast Display contents Operating Temperature Storage Temperature Internal Memory z Interface : 6 O’clock : 1/16 Duty Cycle, 1/5 Bias : 5.0V (typ.) : White : 4.
PAGE 5
DEM 20485 FGH-PW Product Specification 3. EXTERNAL DIMENSIONS 4. BLOCK DIAGRAM LCD PANEL R/W RS V0 VDD LCD Controller LSI ST7066U SEG1~SEG40 SEGMENT DRIVER ST7063 VSS SEG121~SEG200 E 4 Line x 20 Characters SEG41~SEG120 COM1~COM16 DB0~DB7 SEGMENT DRIVER ST7063 Control signals A K Version: 1.1.
PAGE 6
DEM 20485 FGH-PW Product Specification 5. PIN ASSIGNMENT Function Pin No. Symbol 1 VSS Ground terminal of module 2 VDD Power supply of module +5V 3 V0 4 RS 5 R/W 6 E 7 DB0 8 DB1 9 DB2 10 DB3 11 DB4 12 DB5 13 DB6 14 DB7 15 LED-(K) Place also refer to 6.1 PCB Drawing and description 16 LED-(A) Place also refer to 6.
PAGE 7
DEM 20485 FGH-PW Product Specification 6.1 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, J2=J4= open and J3=J5=0 Ohm 6-1-2. The metal-bezel is set be on ground when the J1=0 Ohm Note: In application module, J1=0 Ohm 6-1-3.
PAGE 8
DEM 20485 FGH-PW Product Specification 7. BACKLIGHT VOLTAGE AND CURRENT Item Symbol MIN. TYP. MAX. Unit 4.0 - V 60 80 mA Vf=4.0V Vf=4.0V Forward Voltage Vf Forward Current If Power Dissipation Pd 0.24 W Reverse Voltage VR 4.0 V Reverse Current IR - 0.40 mA Luminous Intensity LV 450 600 cd/m2 - X=0.33 Y=0.33 40 300 Luminous Uniformity 70 X=0.27 Y=0.27 Chromaticity coordinate λ p Emission Wavelength White Conditions % Vf=4.0V nm If=20mA, Ta=25°C Each chip 8.
PAGE 9
DEM 20485 FGH-PW Product Specification 9. MAXIMUM ABSOLUTE LIMIT (Ta=25°C) Item Symbol Standard value Unit Power supply voltage VDD -0.3~+7.0 V LCD Driver voltage VLCD VDD-10.0~VDD+0.3 V Input voltage VIN -0.3~VDD+0.3 V Operating temperature Topr -20~+70 °C Storage temperature Tstg -25~+75 °C 10. ELECTRICAL CHARACTERISTICS 10-1 DC Characteristics(VDD=5.0V, Ta=-20~+70°C) Item Operating Voltage Supply Current LCD Driving Voltage Symbol VDD IDD VLCD MIN 4.5 ---3.
PAGE 10
DEM 20485 FGH-PW Product Specification 10-2-2 Read mode Characteristic Enable Cycle Time Enable Pulse Time Symbol tC TPW Min 1200 480 Type ----- Max ----- Unit ns ns Test PIN E E Enable Rise/Fall Time TR，TF TAS TAH TDDR TH --- --- 25 ns E 0 10 --10 --------- ----320 --- ns ns ns ns R/W,RS,E R/W,RS,E DB0~DB7 DB0~DB7 Address Set-up Time Address Hold Time Data Set-up Time Data Hold Time Version: 1.1.
PAGE 11
DEM 20485 FGH-PW Product Specification 11. CONTROL AND DISPLAY COMMAND Command RS R/W DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0 Execution time (fosc=270KHz) clear Display L L L L L L L L L H 1.52ms Return home L L L L L L L L H --- 1.52ms Remark Write “20H” to DDRAM and set DDRAM address to “00H” from AC Set DDRAM address to "00H"from AC and return cursor to its original position if shifted.The contents of DDRAM are not changed.
PAGE 12
DEM 20485 FGH-PW Product Specification 12. STANDARD CHARACTER PATTERN (ST7066-0A) Upper(4bit) LLLL Lowerr(4bit) LLLH LLHL LLHH LHLL LHLH LHHL LHHH HLLL HLLH HLHL HLHH HHLL HHLH HHHL HHHH CG RAM LLLL (1) LLLH (2) LLHL (3) LLHH (4) LHLL (5) LHLH (6) LHHL (7) LHHH (8) HLLL (1) HLLH (2) HLHL (3) HLHH HHLL HHLH (4) (5) (6) HHHL (7) HHHH (8) Version: 1.1.
PAGE 13
DEM 20485 FGH-PW Product Specification 13. LCM INITIALIZING BY INSTRUCTION 13-1 8-bit interface mode Power on Wait time > 40ms After VDD> 4.
PAGE 14
DEM 20485 FGH-PW 13-2 Product Specification 4-bit interface mode Power on Condition Wait time > 40ms After VDD> 4.
PAGE 15
DEM 20485 FGH-PW Product Specification 14. 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.