2022年ET-CV使用说明书 .pdf
PRODUCT SPECIFICATION FOR LCD MODULEMODULE NO.:ET-12864C REVERSION :V2 TYPE :COB Customer Approval:PREPARED BY DATE CHECKED BY DATE APPROVED BY DATE 名师资料总结-精品资料欢迎下载-名师精心整理-第 1 页，共 14 页 -LCD MODULE ET-12864CV2 APR.13.2009SHEN ZHENET TECHCHNOLOGY CO.,LTD.Tel:86-755-88834445 61332400 Fax:86-755-88834446 E-mail: Http/-1-DOCUMENT REVISION HISTORY VERSION DATE DESCRIPTION CHANGED BY V1 MAR.9,2007 First issue YE V2 APR.13.2009 Add Software Design Guide Retsen 名师资料总结-精品资料欢迎下载-名师精心整理-第 2 页，共 14 页 -LCD MODULE ET-12864CV2 APR.13.2009SHEN ZHENET TECHCHNOLOGY CO.,LTD.Tel:86-755-88834445 61332400 Fax:86-755-88834446 E-mail: Http/-2-1.General Specifications Item Standard Value UnitNumber of dots 128(W)X64(H)dotsDisplay Pattern Dot-Graphic Character Digits with ICON _Module Dimension 78(W)X70(H)X 13(T)mmViewing Area 62(W)X 44(H)mmActive Area 56(W)x 38.34(H)mmDOT Size 0.378(W)x 0.54(H)mmDOT Pitch 0.438(W)x 0.60(H)mmLCD Type TN,Positive TN,Negative HTN,Positive HTN,Negative STN,Yellow-Green STN,Gray STN,Blue FSTN,Positive FSTN,Negative Color STN FM LCD Polarizer Type Transmissive Reflective Transflective Anti-Glare View Direction 6H 12H_ Operation Voltage 3.0(3.3)5.0 _ V DC-DC Converter Build-in External LCD Controller&Driver KS0107&KS0108 LCD Driving Method 1/64duty,1/9bias Interface Type 6800 8080 I2C Serial SPI Backlight Type LED CCFL EL no Backlight _ Backlight Color Yellow-Green White Amber Blue Red _ EL/CCFL Driver type Build-in External Operation Temperature(oC)-20-70(TOPL TOPH)deg.Storage Temperature(oC)-30-80(TSTL-TSTH)deg.Note:Label“”means the option selected.名师资料总结-精品资料欢迎下载-名师精心整理-第 3 页，共 14 页 -LCD MODULE ET-12864CV2 APR.13.2009SHEN ZHENET TECHCHNOLOGY CO.,LTD.Tel:86-755-88834445 61332400 Fax:86-755-88834446 E-mail: Http/-3-2.External Dimensions 128X64 DOTS3.Block Diagram DB0DB7LEDK/RSTLEDARSCS2R/WECS1 1)VR:10K 20KLED BACKLIGHTKAR2)VDD=5V,Ta=25 CVSSGNDExternal VOP adjust circuitCIRCUITCOMMONDRIVERKS0107POWERSUPPLYVSSVDDVoutKS0108 KS0108 DRIVERSEGMENTDRIVERSEGMENT64SEG64SEGVRV0LCDModule128X64 DOTSLCD PANEL64COMVoutVout名师资料总结-精品资料欢迎下载-名师精心整理-第 4 页，共 14 页 -LCD MODULE ET-12864CV2 APR.13.2009SHEN ZHENET TECHCHNOLOGY CO.,LTD.Tel:86-755-88834445 61332400 Fax:86-755-88834446 E-mail: Http/-4-4.Pin Description Pin Name Level Function 1/CS1 I U3 Chip selection(Left half panel),Low effective.2/CS2 I U4 Chip selection(Right half panel),Low effective.3 VSS P Logic Ground（0V）4 VDD P Supply Voltage for Logic(+5V)5 VO P Voltage level for LCD contrast adjustment 6 RS I Data or Instruction.RS=H:DB Display RAM dataRS=L:DB Instruction data7 R/W I Read/write control signal input terminal.R/W=“H”:Read R/W=“L”:Write8 E I Enable Signal.R/W=”L”,DBis latched at the falling edge of E.R/W=”H”,DBappears the reading data while E is at high level.9-16 DB0-DB7 I/O Data Busy 17/RST I Reset signal.When RSTB=L,(1)ON/OFF register becomes set by 0.(display off)(2)Display start line register becomes set by 0(Z-address 0 set,display from line 0)After releasing reset,this condition can be changed only by instruction.18 Vout P Negative voltage output.19 LEDA P Anode for LED Backlight20 LEDK P Cathode for LED Backlight 5.Optical Characteristics(VDD=5.0V,Ta=25 C)Item SymbolCondition Min TypeMaxUnitRemarks Note Contrast ratio Cr-2 3-1 35-deg?=90 2 35-deg?=270 3 50-deg?=0 4 Viewing Angle Cr 2 33-deg?=180 5 名师资料总结-精品资料欢迎下载-名师精心整理-第 5 页，共 14 页 -LCD MODULE ET-12864CV2 APR.13.2009SHEN ZHENET TECHCHNOLOGY CO.,LTD.Tel:86-755-88834445 61332400 Fax:86-755-88834446 E-mail: Http/-5-6.Electrical Characteristics(Based on Ta=20 to 70 deg.C,Vss=0 V)Item Symbol Min TypeMax UnitApplicable terminal Test condition Operating voltage VDD3.3 5.0 5.2 V-Supply current IDD-5 10 mA VDDDuring display VOP VDD-VO-9.9 13.85 VDD,VO 25C Supply backlight voltage Vled4.8 5.0 5.2 V LEDA,LEDK Turn on LEDInput backlight current Iled60 70 80 mA LEDA,LEDK Turn on LEDOutput voltage VOUT-10-V VEEVDD=5V VIL 0-0.3VDDV Input voltage VIH 0.7VDD-V RS,R/W,CS1,CS2,E,DB0DB7-7.Timing Characteristics Chatacteristic Symbol Min Typ Max Unit E Cycle tC 1000-ns E High Level Width tWH 450-ns E Low Level Width tWL 450-ns E Rise Time tR-25 ns E Fall Time tF-25 ns Address Set-Up Time tASU 140-ns Address Hold Time tAH 10-ns Data Set-Up Time tDSH 200-ns Data Delay Time tD-320 ns Data Hold Time(Write)tDHW 10-ns Data HoldTime(Read)tDHR 20-ns Fig7.1 Write Mode Timing Diagram 名师资料总结-精品资料欢迎下载-名师精心整理-第 6 页，共 14 页 -LCD MODULE ET-12864CV2 APR.13.2009SHEN ZHENET TECHCHNOLOGY CO.,LTD.Tel:86-755-88834445 61332400 Fax:86-755-88834446 E-mail: Http/-6-Fig7.2 Read Mode Timing Diagram 8.Instruction Table Code InstructionR/W RS DB7 DB6 DB5DB4 DB3 DB2 DB1DB0FunctionDisplay ON/OFF L L L L HH H HHH/LControls the display on or off.Internal status and display RAM data is not affected.L:OFF,1:ON Display Start Line L L H H Display start line（063）Indicates the display data RAM displayed at the top of the screen.Set Page(X address)L L H L HH H X address（07）Sets the X address at the X address register.Set Y Address L L L H Y address（0 63）Sets the Y address in the Y address counter.Status Read H L BUSY L ON/OFFRESET L L LLRead status.BUSY L:Ready H:In operation ON/OFF L:Display ON H:Display OFF RESET L:Normal H:Reset Write Display Data L H Write Data Writes data(DB0:7)into display data RAM.After writing intruction,Y address is increased by 1 automatically.Read Display Data H H Read Data Reads data(DB0:7)from display data RAM to the data bus.名师资料总结-精品资料欢迎下载-名师精心整理-第 7 页，共 14 页 -LCD MODULE ET-12864CV2 APR.13.2009SHEN ZHENET TECHCHNOLOGY CO.,LTD.Tel:86-755-88834445 61332400 Fax:86-755-88834446 E-mail: Http/-7-9.Instruction Description 9.1 Display On/Off R/WRSDB7DB6DB5DB4DB3DB2DB1DB0HEX000011111D3EH/3FHD=1:The module can display all kinds of operations D=0:The module cant display all kinds of operations 9.2 Set Display StartLineR/WRSDB7DB6DB5DB4DB3DB2DB1DB0HEX0011A5A4A3A2A1A0C0H-FFHStarting line addresses can be from 0 to 63 is an arbitrary line.For example:Select A5 A0 is 62,the start line and the line DDRAM relationship is as follows:DDRAM:62 63 0 1 2 328 29 Screen display line：1 2 3 4 5 631 32（Usually the first elections to the start line 0）9.3 Set Page R/WRSDB7DB6DB5DB4DB3DB2DB1DB0HEX0010111A2A1A0B8H-BFHDDRAM page address is the address line,eight points line is a page.Module to a total of 64,that is 8 pages.A2 to A0 means 0 to 7pages。Read and write data on the address is not affected by this directive page address or/RST signal change,reset after page address to 0.DDRAM page address and see the correspondence between DDRAM address table.9.4 Set Y Address R/WRSDB7DB6DB5DB4DB3DB2DB1DB0HEX0001A5A4A3A2A1A040H-7FHA5 A0 will be taken to address counter Y,the Y addresses DDRAM as a guide。In the DDRAM to read and write after the operation,Y address pointer Automatic 1,pointing to the next DDRAM unit.DDRAM adressing U1(left)U2(right)Y=0 1 62630 1 6263X=0 DB0DB7DB0 DB7 DB0 DB7 DB0DB7DB0DB7DB0DB7DB0DB7DB0DB7DB0DB7DB0DB7 DB0DB7DB0 DB7 DB0 DB7 DB0DB7DB0DB7DB0DB7DB0DB7DB0DB7DB0DB7DB0DB7X=7 DB0DB7DB0 DB7 DB0 DB7 DB0DB7DB0DB7DB0DB7DB0DB7DB0DB7DB0DB7DB0DB7line 0 7 8 55 56 63 名师资料总结-精品资料欢迎下载-名师精心整理-第 8 页，共 14 页 -LCD MODULE ET-12864CV2 APR.13.2009SHEN ZHENET TECHCHNOLOGY CO.,LTD.Tel:86-755-88834445 61332400 Fax:86-755-88834446 E-mail: Http/-8-9.5 Status Read R/WRSDB7DB6DB5DB4DB3DB2DB1DB0HEX10BUSY0ON/OFFRST0000When the R/W=1 and D/I=0,E signal to the H the role,status were exported to data bus(DB7 DB0)in the corresponding.BUSY：The provision of internal working conditions。BUSY=1 Said module in its internal operations,this module does not accept external instructions and data。BUSY=0，Module in preparation for the state,readily available for external instructions and data。STATUS READ use instructions,can be read BF data bus,from the test module of the working state.ON/OFF：LCM for the on and off control.For 1,DDRAM on the content displayed on the screen,the Commissioner for 0 DISPLAY OFF.RST：RST=1 that are within the initialization,this component does not accept any instructions and data。9.6Write Display Data R/WRSDB7DB6DB5DB4DB3DB2DB1DB0HEX01D7D6D5D4D3D2D1D0D7 D0 to display data,the command of the D7 D0 into the corresponding DDRAM unit,Y pointer to automatically increase 1.9.7 Read Display Data R/WRSDB7DB6DB5DB4DB3DB2DB1DB0HEX11D7D6D5D4D3D2D1D0The contents of the DDRAM D7D0 read data bus DB7DB0,Y address pointer Automatic 1.10.Software Design Guide;show four cs control for reference;=initial=INIT:CLR RSTB NOP SETB RSTB SETB CS1 SETB CS2 SETB CS3 SETB CS4 INIT1:MOV A,#0C0H ;Set begining row Address(c0-0ffH)LCALL WCOM ;dont set,use default setting 名师资料总结-精品资料欢迎下载-名师精心整理-第 9 页，共 14 页 -LCD MODULE ET-12864CV2 APR.13.2009SHEN ZHENET TECHCHNOLOGY CO.,LTD.Tel:86-755-88834445 61332400 Fax:86-755-88834446 E-mail: Http/-9-;MOV A,#0B8H ;Set page address(HB8-BFH);LCALL WCOM ;MOV A,#40H ;Set line address 40H-7FH ;LCALL WCOM MOV A,#03fH ;display on 3e=off LCALL WCOM RET;=display Graphics=DISP_1:MOV DPTR,#PATTERN ;put Graphics data in PATTERN LCALL DISP10 RET;=Graphics write=DISP10:MOV R1,#0B8H DISP11:SETB CS1 CLR CS2 SETB CS3 CLR CS4 LCALL DISP12 CLR CS1 LCALL DISP12 INC R1 CJNE R1,#0C0H,DISP11 RET DISP12:MOV A,R1 LCALL WCOM MOV A,#40H LCALL WCOM DISP13:MOV R2,#40H DISP14:CLR A MOVC A,A+DPTR LCALL WDATA INC DPTR DJNZ R2,DISP14 RET;=;Write command&data;=WCOM:CLR RS LCALL WRITE RET WDATA:SETB RS WRITE:CLR R_W MOV P1,A SETB E LCALL D_1MS CLR E RET;=名师资料总结-精品资料欢迎下载-名师精心整理-第 10 页，共 14 页 -LCD MODULE ET-12864CV2 APR.13.2009SHEN ZHENET TECHCHNOLOGY CO.,LTD.Tel:86-755-88834445 61332400 Fax:86-755-88834446 E-mail: Http/-10-11.Precautions For Using LCD Modules Handing Precautions(1)The display panel is made of glass.Do not subject it to a mechanical shock by dropping it or impact.(2)If the display panel is damaged and the liquid crystal substance leaks out,be sure not to get any in your mouth.If the substance contacts your skin or clothes,wash it off using soap and water.(3)Do not apply excessive force to the display surface or the adjoining areas since this may cause the color tone to vary.(4)The polarizer covering the display surface of the LCD module is soft and easily scratched.Handle this polarizer carefully.(5)If the display surface becomes contaminated,breathe on the surface and gently wipe it with a soft dry cloth.If it is heavily contaminated,moisten cloth with one of the following solvents:-Isopropyl alcohol -Ethyl alcohol(6)Solvents other than those above-mentioned may damage the polarizer.Especially,do not use the following.-Water -Ketone -Aromatic solvents(7)Exercise care to minimize corrosion of the electrode.Corrosion of the electrodes is accelerated by water droplets,moisture condensation or a current flow in a high-humidity environment.(8)Install the LCD Module by using the mounting holes.When mounting the LCD module make sure it is free of twisting,warping and distortion.In particular,do not forcibly pull or bend the I/O cable or the backlight cable.(9)Do not attempt to disassemble or process the LCD module.(10)NC terminal should be open.Do not connect anything.(11)If the logic circuit power is off,do not apply the input signals.(12)To prevent destruction of the elements by static electricity,be careful to maintain an optimum work environment.-Be sure to ground the body when handling the LCD modules.-Tools required for assembling,such as soldering irons,must be properly grounded.-To reduce the amount of static electricity generated,do not conduct assembling and other work under dry conditions.-The LCD module is coated with a film to protect the display surface.Exercise care when peeling off this protective film since static electricity may be generated.Storage PrecautionsWhen storing the LCD modules,avoid exposure to direct sunlight or to the light of fluorescent lamps.Keep the modules in bags(avoid high temperature/high humidity and low temperatures below 0 C).Whenever possible,the LCD modules should be stored in the same conditions in which they were shipped from our company.OthersLiquid crystals solidify under low temperature(below the storage temperature range)leading to defective orientation or the generation of air bubbles(black or white).Air bubbles may also be generated if the module is subject to a low temperature.If the LCD modules have been operating for a long time showing the same display patterns,the display patterns may remain on the screen as ghost images and a slight contrast irregularity may also appear.A normal operating status can be regained by suspending use for some time.It should be noted that this phenomenon does not adversely affect performance reliability.To minimize the performance degradation of the LCD modules resulting from destruction caused by static electricity etc.,exercise care to avoid holding the following sections when handling the modules.-Exposed area of the printed circuit board.-Terminal electrode sections.名师资料总结-精品资料欢迎下载-名师精心整理-第 11 页，共 14 页 -LCD MODULE ET-12864CV2 APR.13.2009SHEN ZHENET TECHCHNOLOGY CO.,LTD.Tel:86-755-88834445 61332400 Fax:86-755-88834446 E-mail: Http/-11-Liquid Crystal Display Modules LCD is composed of glass and polarizer.Pay attention to the following items when handling.(1)Please keep the temperature within specified range for use and storage.Polarization degradation,bubble generation or polarizer peel-off may occur with high temperature and high humidity.(2)Do not touch,push or rub the exposed polarizers with anything harder than an HB pencil lead(glass,tweezers,etc.).(3)N-hexane is recommended for cleaning the adhesives used to attach front/rear polarizers and reflectors made of organic substances which will be damaged by chemicals such as acetone,toluene,ethanol and isopropylalcohol.(4)When the display surface becomes dusty,wipe gently with absorbent cotton or other soft material like chamois soaked in petroleum benzin.Do not scrub hard to avoid damaging the display surface.(5)Wipe off saliva or water drops immediately,contact with water over a long period of time may cause deformation or color fading.(6)Avoid contacting oil and fats.(7)Condensation on the surface and contact with terminals due to cold will damage,stain or dirty the polarizers.After products are tested at low temperature they must be warmed up in a container before coming is contacting with room temperature air.(8)Do not put or attach anything on the display area to avoid leaving marks on.(9)Do not touch the display with bare hands.This will stain the display area and degradate insulation between terminals(some cosmetics are determinated to the polarizers).(10)As glass is fragile.It tends to become or chipped during handling especially on the edges.Please avoid dropping or jarring.Installing LCD Modules The hole in the printed circuit board is used to fix LCM as shown in the picture below.Attend to the following items when installing the LCM.(1)Cover the surface with a transparent protective plate to protect the polarizer and LC cell.(2)When assembling the LCM into other equipment,the spacer to the bit between the LCM and the fitting plate shou
