HTG12864C-31B-28K06 Manual Rev01
Contents
1. 31 140 2 VV 97090 VA 09 OF 6S oll ADO 2 2 HLD TH LO 0 32 XYNO 9T 0 ST URL www hot lcd com Page 14 of 152. lt is an indispensable condition to drive LCD module within the limits of the specified voltage since the higher voltage over the limits may cause the shorter life of LCD module An electrochemical reaction due to DC direct current causes LCD undesirable deterioration so that the uses of DC direct current drive should be avoided Response time will be extremely delayed at lower temperature than the operating temperature range and on the other hand at higher temperature LCD module may show dark color in them However those phenomena do not mean malfunction or out of order of LCD module which will come back in the specified operating temperature Storage In the case of storing for a long period of time the following ways are recommended Storage in polyethylene bag with the opening sealed so as not to enter fresh air outside in it And with not desiccant Placing in a dark place where neither exposure to direct sunlight nor light is Keeping the storage temperature range Storing with no touch on polarizer surface by any thing else Safety lt is recommendable to crash damaged or unnecessary LCD into pieces and to wash off liquid crystal by either of solvents such as acetone and ethanol which should be burned up later When any liquid leaked out of a damaged glass cell comes in contact with your hands please wash it off well at once with soap and water URL www hot led com Page 13 of 15 HOT Display HTG12864C 31B 28K06 OUTLINE
3. 1 1 7 Bias 12 12 Set Read Modity Write Read Set Read Modify Write Write 0 Enter the Read a Write mode mm lemas afe DE ofro ness o 10D mode CS Set the COM scanning direction SHL 0 Normal 15 SHL S elect SHL 1 Flipped in y direction don t care terms Set the power circuit operation mode VF LCD Supply Voltage Follower 16 Power Control Set VR LCD Supply Voltage Regulator VF LCD Supply Voltage Converter 1 ON 0 OFF 17 Regulator Resistor Select 0 1 0 o Ratio Set the built in resistor ratio Rb Ra MES UOC O 1 Electronic Set reference voltage register Electronic volume register set ofte Control valie ge reg o rowers TT TT Spay or Ene bsplayon Display OFF Entire Display ON 20 nor gt Tfofrfoftjtfrfofofo t t nonoperatoncommand gt Note a For the details of the Display Commands please refer to ST7565R data sheet URL www hot lcd com Page 10 of 15 HOT Display 4 6 Basic Operating Sequence 4 6 1 Initialization Sequence HTG12864C 31B 28K06 Code Function Note AB ala hex Turn on Power Supply VDD amp VSS While st ea 3 maintaining RES at LOW Y Wait until power supply is stabilized Y Release the RES Reset Signal ma EN See AC Characteristics section for timing RES High details Y LCD Bias 1 9 1 0
4. 0 0 1 A2H LCD Characteristics Y ADC Normal 1 O 0 O O AOH No flip on x direction SEG Y SHL Reverse 0 0 1 010 C8H Flip on y direction COM i i e Display RAM P 0 DO MEN EE i e Display age 0 Initial Display Line 0 0 0 0 010 40H Matched to top line of the LCD Power Control Voltage Follower OFF 1lol1il1 lo 2CH Turn on the internal Voltage Converter and Voltage Regulator OFF wait until VOUT stable Voltage Converter ON Delay 50ms J Power Control Voltage Follower OFF 1lo0l1il1 1 2EH Turn on the internal Voltage Regulator and Voltage Regulator OFF wait until VOUT stable Voltage Converter ON Delay 50ms Power Control Voltage Follower OFF 1lol1l 11 2FH Turn on the internal Voltage Follower and Voltage Regulator OFF wait until VOUT stable Voltage Converter ON Delay 50ms J Regulator Resistor Select 1 0 0 1 0 25H Set the built in resistor ratio to middle Set Reference Voltage Mode 0 0 0 010 81H Set to the middle of the range it may be adjused Set Reference Voltage Resistor 1 0 0 010 20H For achieving the best display contrast Y Display ON 1 0 1 1 1 AFH Turn on the LCD display Set Page Address 0 1 1 ololo BOH abe the display data RAM page address to Set Column Address Upper 4bit 0 o 1 0 0 0 10H Specify the display data RAM column address Set Column Address Lower 4bit 4 0 0 0 140 04H to 00H Write Display Data Display Data Write O
5. HTG12864C 31B 28K06 LCD Module User Manual Shenzhen HOT Display Technology Co Ltd Descriptions 01 Prelimiay Release 2010 6 11 HOT Display HTG12864C 31B 28K06 Table of Content 1 Bsaic SDEcIMCA See 3 EE el ES oe ie ed EE EE EE N EE 3 1 2 Mechanical PENE 3 13 Circuit Diagrama E ta 3 No O o ER 4 2 Absolute Maximum RatingS siese seke RR RR RE RR RR RR RARR ER AR RE KAR RR RE RR RR ER AR Re 5 3 Electrical GharacleristieS EE ENE EE ES GE GE nnne 5 NA ee Ee ge AE e AE OE OE Oe 5 32 LED B klight Circuit NO eee 5 d 3 AG GharaelerisiEs esre danes 6 A PPP e o OO O SEO o OE EE EE 8 4 Function specificationS iese ke RR RARR ER RR RR KAR RR RR RR RR RARR ERG RR RAK RR RE Ra Ra 8 4 1 The Parallel Irae sis ee EK EE KS ER SR Ge EE EE DENS RE GE as 8 4 2 BASC OU EE N AE N A OE N GR 9 4 3 Resetting the LCD module ss REEN EER RENS EE EE RE EA DE RE N GR ESE RR GE be AS ES AD AE RR ARE GE demme 9 4 4 Display Memory NAN ee 9 45 Display Me ai ie EO N a ER EE iia 10 4 6 Basic Operating SeduenCce ee ee see ee Ke eee Re Re AR de ee AR ee eee cee a ke ee ee AR ee ee ee ee ke Re AR de eke ee ee 11 5 Inspection Standards REEN EE ER RE RNEER ER GR AR Ee EG RO BR Ke ee GEE Ge 12 6 Handling Praeautions EERS ENE RE EE NE GE RE GE GE EE DEE GE 13 6 1 Mounting MENO EO EE EE EE N OR OE ran En Ent 13 6 2 Cautions of LCD handling and Glans ER EE EE Grei 13 6 3 Caution against static Char asin besa 13 EP Ne 13 6 5 Ca
6. lt 1 2 1 1 2 lt 0 0 7 Scratches and dent on the Scratches and dent on the polarizer shall be in the accordance with 2 Minor polarizer Black white spot and 3 Black White line 8 Stains on the surface of Stains which cannot be removed even when wiped lightly Minor LCD panel with a soft cloth or similar cleaning 9 Rainbow color er color is allowed in the optimum contrast on state within the active Minor 10 Viewing area Polarizer edge or line is visible in the opening viewing area due to polarizer Minor encroachment shortness or sealing line 11 Bezel appearance Rust and deep damages that are visible in the bezel are rejected Minor 12 EE Di anid Suniaca Evident crevices that are visible are rejected Minor 1 Failure to mount parts 13 Parts mounting 2 Parts not in the specifications are mounted Minor 3 For example Polarity is reversed HSC or TCP falls off i 1 LSI IC lead width is more than 50 beyond pad outline N AF rele 2 More than 50 of LSI IC leads is off the pad outline Minor 15 Conductive foreign 1 0 45 lt 0 N 1 matter solder ball 2 0 3 lt lt 0 45 N21 O Average diameter of solder ball unit mm Minor solder hips 3 0 5 lt L N 1 L Average length of solder chip unit mm 16 Bezel flaw Bezel claw missing or not bent Minor oer 1 Failure to stamp or label error or not legible all acceptable if legible 17 Inaication on name plate 2 The separation is more than 1 3 for indication discolo
7. pacitor is connected between these pins VOUT positive voltage supply pin of the chip VSS Negative power supply 0V DO D7 8bit Date bus RD Read RD control signal input IWR Write WR control signal input AO Data Command control Rester URL www hot lcd com chip selection input Page 4 of 15 HOT Display HTG12864C 31B 28K06 2 Absolute Maximum Ratings 3 Electrical Characteristics 3 1 DC Characteristics Vss OV Top 25 C es oee um ve Jr ter ET ENE Goeters ve ouput amago Cure te 30 If 30mA Color 3 3 AC Characteristics URL www hot Icd com Page 5 of 15 HOT Display HTG12864C 31B 28K06 3 3 1 8080 Mode System Bus Timing Vss OV Top 25 C 40 TS1 wR RD DO D7 Write tacc8 tcha DO D Read CONE ATT menger tego soo fm ss et imei two io fm esas rociero we 10 n Conritow Puse veel ear ars Conritow Puse seguir wow ars me ns omita Puse ideo vem Conlon Puse mide teow 25 Dasein fr so Duero me ra o fu gt RO acess nev r o ae omaamme we ie flau gt Note a all timing is using 20 and 80 of VDD as the reference URL www hot Icd com Page 6 of 15 HOT Display 3 3 2 6800 Mode System Bus Timing HTG12864C 31B 28K06 tows tah CS1 terhwttewhr gt E NI td
8. ration in which the Minor sampling indication label characters can be checked URL www hot Icd com Page 12 of 15 HOT Display HTG12864C 31B 28K06 6 6 1 6 2 6 3 6 4 6 5 6 6 6 7 Handling Precautions Mounting method A panel of LCD module made by our company consists of two thin glass plates with polarizers that easily get damaged And since the module in so constructed as to be fixed by utilizing fitting holes in the printed circuit board PCB extreme care should be used when handling the LCD modules Cautions of LCD handling and cleaning When cleaning the display surface use soft cloth with solvent recommended below and wipe lightly Isopropyl alcohol Ethyl alcohol Trichlorotriflorothane Do not wipe the display surface with dry or hard materials that will damage the polarizer surface Do not use the following solvent Water Ketene Aromatics Caution against static charge The LCD module use C MOS LSI drivers So we recommend you Connect any unused input terminal to Vag or Vss Do not input any signals before power is turned on and ground your body work assembly areas assembly equipment to protect against static electricity Packaging Module employs LCD elements and must be treated as such Avoid intense shock and falls from a height To prevent modules from degradation do not operate or store them exposed direct to sunshine or high temperature humidity Caution for operation
9. rse Display ON OF OFF normal 7 gt Set Power Control Set Voltage follower ON voltage converter ON Voltage regulator ON 8 gt Display ON OF ON 4 3 Resetting the LCD module The LCD module should be initialized bu using RES terminal While turning on the VDD and VSS power supply maintain RES terminal at LOW level After the Power supply stabilized release the reset terminal RES High 4 4 Display Memory Map LCD Display front view DO D7 la 1 D7 DO D7 le D7 URL www hot lcd com Page 9 of 15 HOT Display HTG12864C 31B 28K06 4 5 Display Commands me Ll BE ET off ve start Display startlineset set el start IE ES FAN the display RAM display start line address 3 Set Page Address Set Page Address Page Address mm HI m Page Page address Set the display RAM Page address Ser Column Address EERE Col Add Set the upper 4 bit of column address counter Upper 4 bits Ser Column Address DODOOPOES Col Add Set the low 4 bit of column address counter Lower 4 bits Read Read Staus o Read the status data oe he Write ag OLT data into the display RAM Read Display Data Read Display Data Data Read Data Read data from the display RAM Set the display RAM address SEG output ADC Select Correspondence ADC 0 Normal ADC 1 Reverse REV 0 Normal z EON 0 Normal 10 Entire Display ON OFF 1 1 1 1 Q EON 1 Entire display ON Bias 0 1 9 Bias EE Bias
10. s6 DO D write toyc6 l tewlwetewlir gt AAA tdh6 XN YS tacc hr toh6 DO D7 Read Vss OV Top 25 C om mei Wim ve mar um Gonstn swm tes oo e cies sup mein ful gt cese meine e wo fuel gt Coneitow Puso e gt omaron Puse mer wes as ml gt ConritgnPuseweio ver as mf Gone Puse meca ne as fm gt besems ee o ful ESTATE ACT wo fuel gt moasa mes pa gt ownam tere e o me gt Note a all timing is using 20 and 80 of VDD as the reference b CL 100pF URL www hot Icd com Page 7 of 15 HOT Display HTG12864C 31B 28K06 3 4 Reset Timing RES tr Normal Running Internal Status End of Reseting gt Vss OV Top 25 C i Reset Low pules width Note a all timing is using 20 and 80 of VDD as the reference 4 Function specifications 4 1 The Parallel Interface Shared 6800 Mode 8080 Mode pH A t H Reads the display data on me mf El Weesteesper a fe OH lies URL www hot Icd com Page 8 of 15 HOT Display HTG12864C 31B 28K06 4 2 Basic Setting To drive the LCD module correctly and provide normally display please use the following seting 1 gt ADC 0 normal 2 gt SHL select 1 reverse 3 gt LCD Bias Select 1 9 4 gt Initial Display Line 0 5 gt Entire Display ON OF OFF normal 6 gt Reve
11. ther Display Data URL www hot lcd com Page 11 of 15 HOT Display HTG12864C 31B 28K06 5 Inspection Standards Item Criterion for defects Defect type 1 Non display 2 Vertical line is deficient 1 Display on inspection 3 Horizontal line is deficient 4 Cross line is deficient Major Size mm Acceptable number lt 0 3 Ignore note 2 Black White spot 0 3 lt 0 lt 0 45 3 Minor 0 45 lt lt 0 6 1 0 6 lt D 0 Length mm Width mm Acceptable number L lt 10 W lt 0 03 Ignore 5 0 lt L lt 10 0 03 lt W lt 0 04 3 an 5 0 lt L lt 10 0 04 lt W lt 0 05 2 3 Black White line 10 lt L lt 10 0 05 lt W lt 0 06 2 Minor 1 0 lt L lt 10 0 06 lt W lt 0 08 1 L lt 10 0 08 lt W follows 2 point defect Defects separate with each other at an interval of more than 20mm PH 1 Ge y 7 y l je N A S 4 Display pattern j I Minor pa Ea t L A B lt 0 28 0 lt C D E lt 0 25 F G lt 0 25 Note 1 Up to 3 damages acceptable 2 Not allowed if there are two or more pinholes every three fourth inch Size P mm Acceptable Number lt 0 7 Ignore note 0 7 lt P lt 1 0 ge 1 0 lt 0 lt 1 5 1 Minor guany 1 5 lt 0 0 Note 1 Conformed to limit samples 2 Intervals of defects are more than 30mm Size P mm Acceptable Number lt 0 4 Ignore note 6 Bubbles in polarizer 0 4 lt 0 lt 0 65 2 Minor 0 65 lt 0
12. ution for se el AE EE N OE N EE N EE 13 NA 13 Sm wonmuee aarxereweene 13 URL www hot lcd com Page 2 of 15 HOT Display HTG12864C 31B 28K06 1 Bsaic Specifications 1 1 Display Specifications 1 gt LCD Display Mode FSTN Positive Transflective 2 gt Viewing Angle 6H 3 gt Driving Method 1 64 Duty 1 9 Bias 4 gt Backlight BLUE 1 2 Mechanical Specifications 1 gt Outline Dimension 39 5 x 31 1 x 4 5mm See attached Outline Drawing for Details PAGE14 1 3 Circuit Diagram LCD Panel 128 x 64 Pixels VDD vss VO V4 CAP2 CAP2 CAP1 CAP1 CAP3 DBO DB7 ST7565R Cortrol Driver IC C86 VOUT RD WR A0 RES CS1 URL www hot Icd com Page 3 of 15 HOT Display 1 4 Terminal Function Pin Name HTG12864C 31B 28K06 Function VDD Power supply voltage Positive This is the parallel data input serial data input switch terminal P S H Parallel data input P S L Serial data input The following applies depending on the P S status Data Command Data Read Write Serial Clock AO DO to D7 IRD WR X AO SI D7 Write only SCL D6 When P S L DO to D5 fixed H RD E and WR R W are fixed to either H or L With serial data input It is impossible read data from RAM C86 MPU interface selection pin V0 V1 V2 V3 V4 LCD driving voltages C2 C2 C1 C1 C3 When internal DC DC voltage converter is used external ca
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