LMB402CFC - topwaydisplay.com
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1. CGRAM Display Data RAM DDRAM 4 4 1 Character Generator RAM CGRAM Character Generator RAM is for storing the User defined Characters 5x8 dots font Totally 8 User defined Characters character code 00h 07h could be created The User defined Character Codes are 00h and 07h They could be called into DDRAM as normal character User defined CGRAM CGRAM Data Font Pattern Character Address Code D7 D5 D4 DO 00h OOh 01h ee 5x8 dots 08h 06h font pattern 08h 5x8 dots NOIS font pattern 5x8 dots 5x8 dots 5x8 dots 5x8 dots 5x8 dots 5x8 dots CGRAM Address Map URL www towpaydispaly com Document Name LMB402CFC Manual Rev0 1 doc www topwaysz com Page 8 of 11 TOPWAY LCD Module User Manual LMB402CFC 4 4 2 Display Data RAM DDRAM ROM Characters Character Code 10h FFh could be written into DDRAM for displaying the Character 5x8 dots font User defined Characters Character Code 00h 07h stored in CGRAM could also be use Calling Character Code 08h OFh will call out User defined Characters 00h 07h respectively DDRAM Address 00h Oth 02h 03h X 24 25h 26h 27h 40 x 2 Characters 5x8 dots font 40h 41h 42h 43h 64h 65h 66h 67h DDRAM Address DDRAM Address Map Note 1 The mapping is based on top view of the LCD module 2 N 1 2 line display 3 F 0 5x8 dots font 4 D 1 display on 4 4 3 Character Code Rom Please refer to ST7066U 0A Data sh2. LMB402CFC LCD Module User Manual shenzhen Topway Technology Co Ltd Descriptions Release Date Prelimiay release 2006 08 19 URL www towpaydispaly com Document Name LMB402CFC Manual Rev0 1 doc www topwaysz com Page 1 of 11 TOPWAY LCD Module User Manual LMB402CFC Table of Content 1 Basic SEANSEN 3 1 1 DISDIAY SPSCIICATIONS xvcccencscnntscosadusinncinaranpaemsatseemmieniedinssaninduniennacuagateabieseroranaauductnandtaranteniaen 3 1 2 Mechanical Specifications ccccccccscccsccceeesseeeseeeseeeeeeeeteeteeceaeeeseceneesnersneteeteeeeeeeaeeeas 3 gt Soc dP eram 3 TERTNES er 4 2 Absolute Maximum Ratings xnnnvnnnrnnnrnnnnnnnnnnnnnnennnnnnnnnnnnnnnnnnnnnnnnnnennnennnennnennnennnnnnnnnnnnnnennnennn 5 3 Electrical Characteristics Lunsneruanmmunmdnsmmnd ndridiisiutenn inidi einiedissden 5 3 1 BIGXG i e IIO T T 5 3 2 LED Backlight Circuit Characteristics arrrnnrrnnrrnnaneranrnnnnnranernnnrnnnrnnannnanernnrnnnnnnnnennnnennnnen 5 3 3 PIC CharacleliStlCSsecmoserdenxsmebetdsenairtewkaEobtrpeE Ve aen eu etse adcda ug ub rt dort ic Fe xU anb 6 4 Function Specifications oexuccniposassibrsebi annuus dod Usa een tee FEX A MF ruwE RExOF UID US qUKNRUNCN ERN URES 7 AT PE SMN T 4 2 Resetting the LCD module rrranonannrnnnnnanernnnrnnnrnnnnnnanennannvanennnrnnanennanenanennnrnnnnnnanennnennssnnnn T 4 3 Display Memory Map rrarnnannnannnannnannnnnnnnrnnn
3. eet URL www towpaydispaly com Document Name LMB402CFC Manual Rev0 1 doc www topwaysz com Page 9 of 11 TOPWAY LCD Module User Manual LMB402CFC 4 5 Display Commands iue e ee Function Clear T ell es lee tae ee Write 20h to DDRAM and Display D D Be GT GE DN OP ee set DDRAM address AC to 00h Mere T3 3 Set DDRAM address AC to 00h and return cursor to its original position if shifted DDRAM contents are not change Set cursor moving direction and specify display 03 3 3 3 P P Pd shift during data read and write of DDRAM and Entry Mode E T PPP CGRAM Set NE EE ee ee D NM ud S 1 screen shifting S 0 no screen shifting 3 0 d d d l D21 AC AC 1 and if S 1 screen shift left I D 0 AC AC 1 and if S 0 screen shift right ae ae L 1 Ff 3 d 4 D 1 display on D 0 display off Ste 0 00 00 1 D C C 1 cursor on C 0 cursor off B 1 cursor blinking on B 0 cursor blinking off Move the cursor or shift the display where o 1 d bPO DDRAM contents 1 SIC RIL x S C 1 shift screen S C 0 shift cursor o 1 ee ee R L 1 to right side R L 0 to left side if S C 1 AC will not be changed Eunebon DL 1 8 bit interface DL 0 4 bit interface Set N 1 2 line display N 0 1 line display F 1 5x11 dots font F 0 5x8 dots font B o o 1 ACSACAAC3 ACZAC Set CGRAM address in address counter di 0 1 AC6 AC5 ACA AC3 AC2 AC1 ACO Set DDRAM address in address counter Read Busv fla HE
4. i Input Register Select RS HIGH transferring display data RS LOW transferring instruction data RAW Input Read Write Control bus R W HIGH Read mode selected R W LOW Write mode selected Data Enable I O Bi directional tri state Data bus In 8 bit mode DBO DB are in use In 4 bit mode DB4 DB are in use DBO DB3 leave open DB7 Supply Backlight positive supply Supply Backlight negative supply URL www towpaydispaly com Document Name LMB402CFC Manual Rev0 1 doc www topwaysz com Page 4 of 11 TOPWAY LCD Module User Manual LMB402CFC 2 Absolute Maximum Ratings Items Symbol Min Max Unit Conditon gt Supply Voltage Vo 0 60 V Vss V Input Voltage Vw 0 Vo V Vs OV gt Operating Temperature No Condensation Storage Temperature Ts 30 80 C NoCondensation 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 1 DC Characteristics Vss 0V Vpp gt OV Top 25 C Smet MN TEN UMI application Pin Application Pin Operating Voltage Von 47 50 53 V VDD eet Hit Votes va ai 1 vr 1 RS RAW E DBO DBT RS R W E DBO DB7 Input Low Voltage Vi V
5. ispaly com Document Name LMB402CFC Manual Rev0 1 doc www topwaysz com Page 11 of 11
6. ly com Document Name LMB402CFC Manual Rev0 1 doc www topwaysz com Page 6 of 11 TOPWAY LCD Module User Manual LMB402CFC 4 Function Specifications 4 1 Basic Setting To drive the LCD module correctly and provide normally display please use the following setting N 1 2 line display F 0 5x8 dots font D 1 display on Note 1 These setting commands should issue to the LCD module while start up 2 See the Display Commands section for details 4 2 Resetting the LCD module When turning on the VDD and VSS power supply LCD module will execute the reset routine automatically It takes about 50ms After the reset routine the LCD module status will be as follow Display clear DL 1 8 bit interface 1 line display 5x8 dot character font Display off Cursor off Blinking off Increment by 1 No shift Onunocoooo voou nz O n I Note 1 Reset routine could not generate the Basic Setting 4 3 Adjusting the LCD display contrast A Variable Resistor must be connected to the LCD module for providing a reference supply to VO Adjusting the VR will result the change of LCD display contrast The recommended value of VR is 5k Ohm LCD Module VO VSS URL www towpaydispaly com Document Name LMB402CFC Manual Rev0 1 doc www topwaysz com Page 7 of 11 TOPWAY LCD Module User Manual LMB402CFC 4 4 Display Memory Map There are two main memory areas in the LCD module for display Character Generator RAM
7. 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 normal 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 towpayd
8. nnnnnnnnnnannnannnannnennnnnnernnnennnenneennernennnaanneennssnnee 8 44 Display OS EU M 10 5 Design and Handling Precaution anrnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnennnnnnnnnnnnnnnnnnnnnnunnne 11 URL www towpaydispaly com Document Name LMB402CFC Manual Rev0 1 doc www topwaysz com Page 2 of 11 TOPWAY LCD Module User Manual LMB402CFC 1 Basic Specifications 1 1 Display Specifications 1 LCD Display Mode STN Negative Transmissive 2 Display Color Display Data 1 Light Gray 1 Display Data 0 Deep Blue 2 3 Viewing Angle 6H 4 Driving Method 1 16 duty 1 5 bias 5 Back Light White LED backlight Note 1 Color tone may slightly change by Temperature and Driving Condition 2 The Color is defined as the inactive background color 1 2 Mechanical Specifications 1 Outline Dimension 182 0 x 33 5 x 11 9MAX See attached Outline Drawing for details 1 3 Block Diagram BLA BLK LED Backlight Circuit d id LCD Panel COM16 40 x 2 Char 5x8dots Q9 A a 8 VDD 0 3 is O O vss D a H o0 2 E ST7066U ST7063C ST7063C RS R W E equivalent equivalent equivalent URL www towpaydispaly com 11700009 Document Name LMBA02CFC Manual Rev0 1 doc www topwaysz com Page 3 of 11 TOPWAY LCD Module User Manual LMB402CFC 1 4 Terminal Functions Power supply Ground 0V Positive power supply 3 Power LCD contrast reference supply 4
9. r Check the system status and get the address amp ad J BF ACGACSACAAC3AC2ACTACO counter content AC6 AC0 0001 1 ij j ee BF 1 busy BF 0 ready Return Home Cursor or Display Shift 7 1010 1 DLNF x Write data D7 D6 D5 DA D3 D2 D1 DO Write the data into internal RAM where the to RAM pos p uc d c address counter pointing at Read data D7 D6 D5 DA D3 D2 D1 DO Read the data from internal RAM where the from RAM 1 j d j jd i address counter pointing at Note 1 Do not use any other command not listed or the system malfunction may result 2 For the details of the Display Commands please refer to ST7066U datasheet URL www towpaydispaly com Document Name LMB402CFC Manual Rev0 1 doc www topwaysz com Page 10 of 11 TOPWAY LCD Module User Manual LMB402CFC 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
10. s 05 V Output High Voltage Vor 0 7xVoo Voo V lo 0 1mMA DBO DB7 Output Low Voltage Vo Vs 05 V lo 0 1mA DBO DB7 Operating Current Ip 1151 35 mA VDD VSS gt 3 2 LED Backlight Circuit Characteristics Vai 70V Ifa 47100mA Top 25 C Items Symbol MIN TYP MAX Unit Applicable Pin Forward Voltage Vfsa 50 V BLABLK Forward Current Ifsa 150 mA BLA BLK Cautions Exceeding the recommended driving current could cause substantial damage to the backlight and shorten its lifetime BLA BLK URL www towpaydispaly com Document Name LMB402CFC Manual Rev0 1 doc www topwaysz com Page 5 of 11 TOPWAY LCD Module User Manual LMB402CFC 3 3 AC Characteristics Vss 0V Vpp 5V Top 25 C Item Symbol MN TYP MAX Unt Ecydetime 1 te 1500 ns Ehighlevelwidth tpw 175 gt gt ms Erisetme tr 20 ns Efaltim t 4 420 ne Address set up time tas 5 4 ns Address hold time tah 138 1 ne DEREN a E i 1 Data delay time tddr Data hold ime m 1 348 1 a RS 3 R W tos tpw tah E tr so ne Ct tc Host Write Timing Diagram 3 R W tas tpw E uw DBO DB Host Read Timing Diagram URL www towpaydispa
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