LM12864MBC-Manual-Rev0.1
Contents
1. Page X address data LCD Display front view DO 0 D7 12009222 322122912322122912312122919 22 29 po QN QU NuUWI i 1 D7 MUMIA DIRE UTA OTN SATURN STATA TLE DO 0 2 D7 Do r erreevveverervsyrrveeevevversverey p I4 100 AANA ANANA Ad D7 o 128x64 pixels D ETTE E T ET S ALLII AOLII TTA DO 5 D7 RESETE E OAA IANA TE DO j 6 D7 EAE itk AH OLLAS L ILIAS L LLL LLELLE ITEE DO T D7 i Column Y Address 00h gt 3Fh 00h gt 3Fh Chip Select CS1 1 CS2 0 CS1 0 CS2 1 1 Display star line Z address 0 2 The Display Data store separately in two drivers 3 The Display Data for the left section could be accessed by CS1 1 The Display Data for the right section could be accessed by CS2 1 4 5 Internal Registers There are three registers in each section of LCD module Each of them could be controlled independently Page X Address Register X address register designates pages of the internal display data RAM Count function is not available The address should set by instruction Column Y Address Counter Y address counter designates address of the internal display data RAM It could be set by instruction and is increased by 1 automatically by read or write display data operations Display Start Line Z Register Z address register indicates of display data RAM to LCD top line It may be used for scrolling the display pattern on the LCD URL www topwaydisplay c2. Display off display start line register becomes 0 no command or instruction data could be accepted RST H Normal running 18 VOUT Output Power Booster output for VO 19 BLA Power Positive Power for LED backlight 20 BLK Power Negative Power for LED backlight Note i Display or instruction data could write into the LCD module s driver controllers individually or at the same time Only read display or instruction data form one of the driver controller in the LCD module at a time otherwise unexpected data collision may occur URL www topwaydisplay com Document Name LM12864MBC Manual RevO 1 www topwaysz com Page 4 of 10 TOPWAY LCD Module User Manual LM12864MBC 2 Absolute Maximum Ratings Items Symbol Min Max Unit Condition Supply Voltage Vpp 0 7 0 V Vss OV Operating Temperature Top 20 70 C No Condensation Storage Temperature Tst 30 80 C 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 3 Electrical Characteristics 3 4 DC Characteristics Vss 0V VbDpp 5V Top 25 C Items Symbol MIN TYP MAX Unit Applicable Pin Operating Voltage Vpp 4 8 5 0 5 2 V VDD In
3. LM12864MBC LCD Module User Manual Shenzhen TOPWAY Technology Co Ltd Descriptions Release Date New release 2005 08 13 URL www topwaydisplay com Document Name LM12864MBC Manual RevO 1 www topwaysz com Page 1 of 10 TOPWAY LCD Module User Manual LM12864MBC Table of Content 1 Basic Specifications nrin iniii anea ven na ko na Fa R e Yuan aae a RYE E FERA VEN eaa tenes ivedverscietvestisibes 3 1 1 Display Specifications RM 3 1 2 Mechanical Speci cathons mc c 3 1 3 BIOCK dMBIEDIC M 3 1 4 BE uuzuede 4 2 Absolute Maximum RatilitjS iuereicxe adi desda cR E CUDEDQ EIN ZaKee DERI DIU KE DR CERE RUDIORIUD E DK ER bx ER 5 3 Electrical Characteristics iic oir nri in eeu en reco tno oS e Kaai iadau o dy ro enira aduana 5 3 1 plex CharacteriStics cic seis L 5 3 2 LED Backlight Circuit Characteristics 2 cicinee esci nete c eere i ieia ttes se ae eniai daas pneu antra osuere dde 5 3 3 AC Chali Cte ni Ses ELI 0 n n G GSR 6 4 Function Specifications siiiscscisecceiesccceasseesssessscsesascesscsseceveocssesssensscesssdssbsisnevsnnvtedsseadssasseensedess 7 4 1 Basie Setting p eis peace epee coke Lad Po bee Le eee eee 7 4 2 Adjusting the LCD display contrast ccccccccccccssccssccssesssesessecssec
4. e LM12864MBC Manual RevO 1 www topwaysz com Page 9 of 10 TOPWAY LCD Module User Manual LM12864MBC 5 Design and Handling Precaution URL The LCD panel is made by glass Any mechanical shock eg dropping form high place will damage the LCD module 2 Do not add excessive force on the surface of the display which may cause the Display color change abnormally 3 The polarizer on the LCD is easily get scratched If possible do not remove the LCD protective film until the last step of installation 4 Never attempt to disassemble or rework the LCD module 5 Only Clean the LCD with Isopropyl Alcohol or Ethyl Alcohol Other solvents eg water may damage the LCD 6 When mounting the LCD module make sure that it is free form twisting warping and distortion 7 Ensure to provide enough space with cushion between case and LCD panel to prevent external force adding on it or it may cause damage to the LCD or degrade the display result 8 Only hold the LCD module by its side Never hold LCD module by add force on the heat seal or TAB 9 Never add force to component of the LCD module It may cause invisible damage or degrade of the reliability 10 LCD module could be easily damaged by static electricity Be careful to maintain an optimum anti static work environment to protect the LCD module 11 When peeling off the protective film from LCD static charge may cause abnormal display pattern It is normal and will resume to n
5. gram LCD Panel 128 x 64 pixels Q m COM64 juejeAinbe JO Z0L089S c zum ao Backlight Circuit BLA BLK SEG1 SEG64 SEG1 SEG64 VDD VSS VO VOUT Power S6B0108 S6B0108 Circuit or or equivalent equivalent RS R W E RST CS1 CS2 DBO DB7 www topwaydisplay com Document Name LM12864MBC Manual RevO 1 www topwaysz com Page 3 of 10 TOPWAY LCD Module User Manual LM12864MBC 1 4 Terminal Functions Pin Pin N I O Descriptions o Name 1 VSS Power Negative Power Supply Ground OV 2 VDD Power Positive Power Supply 3 VO Power LCD Contrast reference 4 RS Input RS H DBO DB7 Display RAM data RS L DBO DB7 Instruction data 5 R W Input In read mode 6 E Input R W H Data read form the LCD module data appears at DBO DB7 and can be read by the host while E H and the device is being selected In write mode R W L Data write to the LCD module data appears at DBO DB7 will be written into the LCD module at E HSL and device is being selected 7 DBO 1 0 Data bus Three state I O terminal for display data or instruction data 14 DB7 1 0 15 CS1 Input Chip selection When CS1 1 1 enable access to the Left Side 64 column of the LCD module 16 CS2 Input Chip selection When CS2 1 1 enable access to the Right Side 64 column of the LCD module 17 RST Input Reset signal IRST L
6. ic Setting LM12864MBC To drive the LCD module correctly and provide normally display please use the following setting Display start line Z address 0 LCD Display Note on These setting commands should issue to both controllers while start up See the Display Control Instructions section for details 4 2 Adjusting the LCD display contrast A Variable Resistor must be connected to the LCD module for providing a reference to VO Adjusting the VR will result the change of LCD display contrast The recommended value of VR is 25k to 50k 4 3 Resetting the LCD module LCD module L Hu B VOUT The LCD module should be initialized by setting RST terminal at low level when turning the power on When RST pull low the LCD module will Display off Display start line register becomes 0 Z address 0 While RST is low no instruction can be accepted except status read Therefore execute other instructions after making sure that DB4 0 clear RST and DB7 0 ready by status read instruction The conditions of power supply at initial power up are as follow URL Item Symbol MIN TYP MAX Unit Reset time trs 2 0 us Rise time tr 150 ns VDD tiros tr RST www topwaydisplay com www topwaysz com Document Name LM12864MBC Manual RevO 1 Page 7 of 10 TOPWAY LCD Module User Manual LM12864MBC 4 4 Display Memory Map
7. om Document Name LM12864MBC Manual RevO 1 www topwaysz com Page 8 of 10 TOPWAY LCD Module User Manual LM12864MBC 4 6 Display Control Instructions Instructions Function ME PoE ot ot oy Controls the display on or off Internal status and Display on off display data in RAM is not affected i ft 1 O off 1 0n Set Column Y Y address 0 63 Set the Column address into the Y address Address counter Set Page X PE 4 iX address Address i i 0 7 Set Display Start i Z address Indicates the display data RAM displayed at the Line Z address i 0 63 top of the screen iL Read status Busy L Driver ready Busy H Driver busy on off L Display is on on off H Display is off Reset L Normal Running Reset H reset E Write display data into display data RAM Write Display Data 1 Write data After writing instruction Y address counter increased by 1 automatically Read Display Data i0 Read data Read display data form the display data RAM Set the Page address into the X address register Status Read Note 1 Only one section driver could be read at the same time i e only the following setting is valid for the operation CS1 1 CS2 0 is valid CS1 0 CS2 1 is valid 2 Instruction could be write into both drivers at the same time 3 For the details of the Display Control Instructions please refer to Samsung S6B0108 handbook URL www topwaydisplay com Document Nam
8. ormal in a short while 12 Take care and prevent get hurt by the LCD panel sharp edge 13 Never operate the LCD module exceed the absolute maximum ratings 14 Keep the signal line as short as possible to prevent noisy signal applying to LCD module 15 Never apply signal to the LCD module without power supply 16 IC chip eg TAB or COG is sensitive to the light Strong lighting environment could possibly cause malfunction Light sealing structure casing is recommend 17 LCD module reliability may be reduced by temperature shock 18 When storing the LCD module avoid exposure to the direct sunlight high humidity high temperature or low temperature They may damage or degrade the LCD module www topwaydisplay com Document Name LM12864MBC Manual RevO 1 www topwaysz com Page 10 of 10
9. put High Voltage Vin 3 5 Vop V RS R W E CS1 CS2 Input Low Voltage Vit 0 0 4 V DBO DB7 Operating Current lop 4 4 12 5 mA VDD VSS 3 2 LED Backlight Circuit Characteristics Vgi 70V Ifaj 47165mA Top 25 C Items Symbol MIN TYP MAX Unit Applicable Pin Forward Voltage Vista 5 0 V BLA Forward Current IfsLa 240 mA BLA Cautions Exceeding the recommended driving current could cause substantial damage to the backlight and shorten its lifetime BLA BLK URL www topwaydisplay com Document Name LM12864MBC Manual RevO 1 www topwaysz com Page 5 of 10 TOPWAY 3 3 AC Characteristics LCD Module User Manual Vss 0V Vpp 5V Top 25 C LM12864MBC Item Symbol MIN TYP MAX Unit E cycle time tc 1500 ns E high level width twh 700 ns E low level width twl 700 ns E rise time tr 18 ns E fall time tf 18 ns Address set up time tasu 210 ns Address hold time tah 15 ns Data set up time tdsu 300 ns Data delay time td 480 ns Data hold time write tdhw 15 ns Data hold time read tdhr 30 ns R W RS CS1 CS2 DBO DB7 E R W RS CS1 CS2 DBO DB7 Host Read Timing Diagram Document Name LM12864MBC Manual RevO 1 Page 6 of 10 URL www topwaydisplay com www topwaysz com TOPWAY LCD Module User Manual 4 Function Specifications 4 1 Bas
10. ssecssecssscssscseeseessessssssecsaessaecsaesuecsaeesaeesaeesasesaeees 7 4 3 Resetting the LOD module edere eec roten eere ien E red urbe ee donde Feb ce ke seceded be Costa eu Fuere a ee chevet nene 7 4 4 Display Memory Map euni titio tei sete tese ti Teese a Md te SEE DEL cable paa e Hue ER EXP Et RORIS oDi Aara ee iE 8 4 5 intemal IR gISIGIS cicero ie eser ter e duet ereeieei tu aise Ue LL LR LLLA eat eet ieee aes 8 4 6 Display Control Instructions 0 0 00 eee eee ee errr erent ee ee eae ee ee neater sates enna nennen ene nenee nennen nnn en nenr enne rn en nennen nennen 9 5 Design and Handling Precaution iuuenes nain nas ce skik x ea kx S anu mud aser rb Ha EE KOxEE KEEN LATXERE EE SERVE KK 10 URL www topwaydisplay com Document Name LM12864MBC Manual RevO 1 www topwaysz com Page 2 of 10 TOPWAY LCD Module User Manual LM12864MBC 1 1 1 1 2 1 3 URL Basic Specifications Display Specifications 1 LCD Display Mode STN YG Positive Transflective 2 Display Color Display Data 1 Deep Blue 1 Display Data 0 Light Yellow Green 2 3 Viewing Angle 6H 4 Driving Method 1 64 duty 1 9bias 5 Backlight Yellow 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 73 0 x 42 0 x 13 5 see attached Outline Drawing for details Block Dia
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LM12864MBC Manual Rev0.1