s12232a lcd module user manual
Contents
1. VY VDD VSS vo A K LED Backlight Power Circuit VY INCO DISPLAY TECHNOLOGY CO LTD 5 POWER SUPPLY LCD MODULE J SHENZHEN SINCO DISPLAY TECHNOLOGY CO LTD 6 PIN DESCRIPTION aw jme AA 3 Input Contrast Adjust BIRTE E H DBO DB7 Data L DB0 DB7 Command 5 est npu Chip section signat arici O 6 esz mpu Chip selection signal torca O Ta m femme U a mu re Read Write for 6800 family interface n ETR H L Write Note E signal should be used as RD signal for 8080 family interface R W should be used as WR signal for 8080 family interface 7 MAXIMUM ABSOLUTE LIMIT T 25 C Supply Voltage 0 37 0 Input Voltage Vss Vdd c Operating Temperature Storage Temperature 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 BOT TOT T 5 10 O si o os oe NE A e UR Output Low Voltage vo 0 03 V 1ob0 1ma DB0 DB7 8 2a AC Characteristics for 8080 family interface VDD 5V VSS 0V TTa 20 75 Aspi ws A no TAddresshold tme ns Read Write pulse Falling rising time trate B ns Read Write pulsewidth twn 20 System eyde time ave 100 Data setuptime m LT Data ha time mL Data acces ti2. SHENZHEN SINCO DISPLAY TECHNOLOGY CO LTD 12232A LCD MODULE USER MANUAL Address ZhaoFuDa Industry Park SongGang BaoAn Districty Shenzhen Tel 0755 83418186 http www sinco display com E mail sinco sinco display com 1 SHENZHEN SINCO DISPLAY TECHNOLOGY CO LTD FUNCTIONS amp FEATURES Features Dot Matrix 122 X 32 Dots LCD Mode STN Controller IC SED1520 or Equivalent Driving Method 1 32 Duty 1 9 Bias Viewing Angie 6 O clock direction 6800 serial 8 Bit MPU Interface Backlight LED Operating Temperature Range 20 to 70 C Storage Temperature Range 30 to 80 C Note Color tone is slightly changed by temperature and driving voltage MECHANICAL SPECIFICATIONS ITEM SPECIFICATIONS 0 40 0 45 3 EXTERNAL DIMENSIONS 76 0 0 2 14 5 4 0 o i 10 2 2 54 19 48 26 i 7 0 35 N V PRE BE R ZR AA a a NI RE at TEPER TPE ETP SE Z i SNL PE aan d ass 122 X 32dots MO T 4 i no TAAL lt st gt KA AAA AAA Se AA 48 75 12 01 V A 60 0 0 2 1 6 885 66 3 0 2 gt o 25 79 0 0 2 gt Re 84 0 0 3 12 3 4 BLOCK DIAGRAM CS1 RST SED1520 61SEG RS OR EOV R W gt 16COM Y DBO gt i ya LCD PANEL DB7 gt 16GOM 122 X 32dots E CL SED1520 CS2 gt OR EQV 61SEG
3. CCW output ON OFF 1 Display off ON OFF 0 Display on Reset 1 Being reset Reset 0 Normal Read Status Write Display Data ___ Read Display Data ___ Select ADC lojalolilolololojon Static Drive kal 110 a 0 1 0 normal drive EEE ON VOFF pas drive Select duty nooo 0 jor Ir a En HE O O O OO E nm Display Data Display Data Read Display Data from display data RAM 0 CW om Read Modify Write lo ilililololol ol Read modify mrile ON End oj1 1 1 Oy 1474 Read modify write OFF Reset i i i i i Software Reset Note 1 Only one section driver could be read at the same time 2 For the details of the display control instructions please refer to SBN1661G 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 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 es ee ee ee eee ee ee ee eee ee eee eee eee eee ee ee ee eee eee
4. ee ee ee ee ee ee dese ON 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 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 1s 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 module
5. e Display control instructions section for details SHENZHI NOLOGY CO LTD N SINCO DISPLAY TECH 9 2 Adjusting The LCD Display Contrast A Variable Resistor must be connected to the LCD module for providing a reference to VO The recommended value of the Variable Resistor 1s 20K to 50K vo 20K 9 3 Resetting Signal The LCD module can be reset or initialized by setting RST to low level if it is interfaced with a 6800 MPU or high level 1f it is interfaced with a 8080 family MPU This reset operation occurs when an edge of the RST signal is sensed The level input selects the type of interface with the 6800 family or 8080 family MPU High level Interface with 6800 family MPU Low level Interface with 8080 family MPU 9 4 Display Memory Map Page address Data LCD Display font view oe T C O CIC Note Display start line 0 ADC 0 9 5 Display Control Instructions TECHNOLOGY CO LTD Instructions DR DE e aa zu Function II I I I I c 0 OFF Display ON OFF 10 1 0 1 0 1 1 1 io 1 ON i F F F F F F E Display Data RAM is not affected _ Set Int l 0 Display Start Line Specifies RAM line corresponding Display Start Line gt mii to the top line of display Page Address i toto TT I 0 3 Set ini Column Address Column Address _ Dia Set Page Address Register Set Column Address Counter Busy 1 Busy Busy Ready ADC 1 CW output ADC 0
6. me ee 0 ws Data output hoia tme ton 10 o ns MPU write timing for 8080 family interface HNOLOGY CO LTD CSLCS2 IE tr PWPW RD WR 0 9 x VDD f 05 x VDD k tcyc i DH D0 to D7 Hi 7 Wa Hi Z WRITE 0 1 VDD DO to D7 Hi Z mm 092 VDD Hi READ DI VDD he fe 8 2b AC Characteristics for 6800 family interface VDD SV VSS 0V TTa 20 75 Items Symbol Unit ir scp ine mirat tu 2 as Address setup time with respeettoRS tw 20 ns Address hold time with respect to RAV tm 1 as Address hold time with respecttoRS tam 10 ns Enable pulse falling rising time trite E ns System m te 10 ms Enable pulse width for READ tu 100 ns Enable pulse width for WRITE uy 80 ns Dame w ms Dataholdtine CV ates im tae C m E Data output hold time MPU write timing for 6800 family interface pl le i E 0 1 x VDO AH1 x VDD RW EEE tar SI Cs CS1 CS2 oo DO to D7 Hi Z WRITE DO to D7 Hi Z READ 9 FUNCTION SPECIFICATIONS 9 1 Basic Setting To drive the LCD module correctly and provide normally display please use the following setting Select duty 1 32 ADC 0 Display start line 0 LCD display ON READ MODIFY WRITE OFF Note These setting commands should issue to both controllers while start up See th
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