鑫触电子科技有限公司字符点阵液晶显示模块使用手册
Contents
1. static electricity Be careful to maintain an optimum anti static work environment to protect the LCD module 10 10 When peeling of the protective film form LCD static charge may cause abnormal display pattern It is normal and will resume to normal in a short while 10 11 Take care and prevent get hurt by the LCD panel edge 10 12 Never operate the LCD module exceed the absolute maximum ratings 10 13 Keep the signal line as short as possible to prevent noisy signal applying to LCD module 10 14 Never apply signal to the LCD module without power supply 10 15 IC chip eg TAB or COG is sensitive to the light Strong lighting environment could possibly cause malfunction Light sealing structure casing is recommend 10 16 LCD module reliability may be reduced by temperature shock 10 17 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 module2. S OV Power Ground 3 vO Contrast Adjust 4 RS H L H Data L Command 5 R W H L H Read L Write 6 E H H gt L Enable Signal 7 DBO as A H L Data Bus 14 DB7 7 MAXIMUM ABSOLUTE LIMIT T 25 C Items Symbol Min Max Unit Condition Supply Voltage Vdd 0 5 0 V Vss 0V Input Voltage Vin 0 Vdd V Vss 0V Operating Temperature Top 20 70 Cc No Condensation Storage Temperature Tst 30 80 Cc No Condensation Note Voltage greater than above may damage the module All voltages are specified relative to Vss 0V 8 ELECTRICAL CHARACTERISTICS 8 1 DC Characteristics VDD 5V VSS 0V Ta 0 50 C Items Symbol Min TYP Max Unit Condition ze fh HT Bie AM a Al Operating Voltage Vdd 4 7V 5 0 5 3 V Vdd Supply Current Idd 1 5 3 5 mA except LED backlight Input High Voltage Vin 0 8 Vdd Vdd V RS RW E DBO DB7 Input Low Voltage Vil Vss 0 5 V Output High Voltage Voh 0 7XVdd Vdd V Ioh 0 1mA DB0 DB7 Output Low Voltage Vol Vss 0 5 V Iol 0 1mA DB0 DB7 LCD Driving Voltage Vicd 4 6 4 8 5 0 V Vdd V0 8 2 AC Characteristics VDD 5V VSS 0V TTa 20 75 Items Symbol Min TYP Max Unit E cycle time te 1500 nS E high level width tpw 175 F nS E rise time tr K 20 nS E fall time tf 20 nS Address set up time tas 5 FR ns Address hold
3. The User defined Character Codes are 00h and 07h They could be called into DDRAM as normal character fh HT BR AM a Al User defined CGRAM CGRAM Data Font Pattern Character Add Code ress D7 D5 D4 DO ih 00h 1h 5x8 dots 07h U8 Oth 5x8 dots O9h font pattern 02h 5x8 dots OAh font pattern 03h 5x8 dots OBh font pattern ee oom ae a sinks 2 CGRAM Address Map 9 3 2 Character code ROM Please refer to SPLC780C datasheet a fh HT Bi AM a Al 9 4 Display Commands nstruction escription rs Rw 087 086 085 064 083 082 0B1 0B0 fosc 270KH2 bate BIG Diet ale al address to 00H from AC Return Home 1 Set DDRAM address to 00H from AC and return cursor to its original position if shifted The contents of DDRAM are not changed et Set the shift of entire display a ll a aed OFF Control cursor B on off control bit Cursor or 1 S C RIL Set cursor moving and display shift control 38us Display Shift eee erry bit and the direction without changing of DDRAM data Function Set 1 DL F Set interface data length DL 8 bit 4 bit 38us numbers of display line N 2 line 1 line and display font type F 5x10 dots 5x8 dots Set CGRAM 0 1 JAC5 AC4 AC3 AC2 AC1 AC0 Set CGRAM address in address counter 38us Address Set DDRAM 1 AC6S AC5 AC4 AC3 AC2 AC1 AC0 Set DDRAM address in counter 38us Address Read Busy Flag 1 BF AC6 AC5 AC4 AC3 AC2 AC1 ACO Whether during internal operation or not and Address
4. can be known by reading BF The Counter contents of address counter can also be read pee ee DDRAM CGRAM Fa ill ad i i edi RAM DDRAM CGRAM NOTE Do not use any other commands not listed or the system malfunction may result For the details of rte display commands please refer to SPLC780C datasheet 10 DESIGN AND HANDING PRECAUTION 10 1 The LCD panel is made by glass Any mechanical shock eg Dropping form high place will damage the LCD module Do not add excessive force on the surface of the display which may cause the Display color change abnormally 10 2 The polarizer on the LCD is easily get scratched If possible do not remove the LCD protective film until the last step of installation fh HT Bik AM a Al 10 3 Never attempt to disassemble or rework the LCD module 10 4 Only Clean the LCD with Isopropyl Alcohol or Ethyl Alcohol Other solvents eg water may damage the LCD 10 5 When mounting the LCD module make sure that it is free form twisting warping and distortion 10 6 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 10 7 Only hold the LCD module by its side Never hold LCD module by add force on the heat seal or TAB 10 8 Never add force to component of the LCD module It may cause invisible damage or degrade of the reliability 10 9 LCD module could be easily damaged by
5. time tah 13 nS Data set up time tdsw 50 nS Data delay time tddr 125 nS Data hold time th 13 B nS MPU write timing RS R W DBO DB7 MPU read timing a fh HT Bi AM a Al R W DBO DB7 9 FUNCTION SPECIFICATIONS 9 1 Basic Setting To drive the LCD module corretly and provide normally display please use the following setting N 1 2 line display F 0 5 lt 8 dots font D 1 display on Note These setting commands should issue to the LCD module while start up See the Display Commands section for details 9 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 N l 2 line display Display clear DL 1 8 bit interface F 0 5X8 dot character font D 0 Display off C 0 Cursor off se fh HT Bie AM a A B 0 Blinking off D 1 Increment by 1 S 0 No shift NOTE Reset routine could not generate the Basic Setting 9 3 Display Memory Map There are two main memory areas in the LCD module for display Character Generator RAM CGRAM Display Data RAM DDRAM 9 3 1 Character Generator RAM CGRAM Character Generator RAM is for storing the User defined Characters 5 X 8 dots font Totally 8 User defined Characters character code 00h 07h could be created
6. ze fh HT Bie AR a A TIT A EBC Me AN REF FP XC1602DB LCD MODULE USER MANUAL 1 FUNCTIONS amp FEATURES Features Characters 16 X 2 Lines LCD Mode STN Controller IC SPLC780D or Equivalent Driving Method 1 16 Duty 1 SBias Viewing Angie 6 O clock direction 6800 serial 8 Bit 4 Bit MPU Interface Backlight LED Operating Temperature Range 20 to 60 C Storage Temperature Range 30 to 70 C fh HT Bi AM a Al 2 MECHANICAL SPECIFICATIONS ITEM SPECIFICATIONS UNIT Module Size 85 0L X 30 0W X 13 0 max H mm View Area 64 5 X 13 8 mm Number of Character 16 X2 Lines Character Size 2 955 X 5 150 mm Character Pitch 3 500 X 5 560 mm 3 EXTERNAL DIMENSIONS 85 000 79 190 10 433 71 30 max8 7 033 V A 64 50 1 60 l 3 50 0 880 A A 55 45 295 0 55 1 0 60 tol 15 S25 88 loo a SAA da oe o t ray 21 i 3 max13 4 9 3 30 Sam eh aK RO 4 BLOCK DIAGRAM a fh HT Bie AOR a Al VDD a icon _ LOD PANEL Y Z tCD e T 16 Cha rac ters x2 Line RS LSI i i E KA0066 40SEG ieee DBO DB7 lt gt Or Eav l Segment driver LEDA j LEDK A LED Backlight 5 POWER SUPPLY LCD MODULE 0 VDD T i 10K VSS VDD V0 Operating voltage for LCD ze fh HT Bie AR a A 6 PIN DESCRIPTION ITEM SYMBOL LEVEL FUNCTION 1 VDD 5 0V Power Supply For Logic 2 VS
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