I:\New Datasheet\LET\TC4002A
Contents
1. P17 15 Revision records P18 TC4002A 02WAO0 A00 Page 2 of 18 1 Precautions in Use of LCD Module 1 Avoid applying excessive shocks to the module or making any alterations or modifications to it 2 Don t make extra holes on the printed circuit board modify its shape or change the components of LCD Module Don t disassemble the LCM Don t operate it above the absolute maximum rating Don t drop bend or twist LCM Soldering only to the I O terminals Storage please storage in anti static electricity container and clean environment 2 General Specification mu STANOAROVALUE WO Outline dimension 182 0 W X33 5 H X13 1MAX T View area 155 0 W X16 0 H Active area 5 40 W X11 5 H Dot size 0 60 W X0 65 H Dot pitch 0 65 W X0 70 H m 3 Absolute Maximum Ratings ITEM SYMBOL MIN TYP MAX UNIT Operating Temperature Tor 20 NS 70 E Storage Temperature Tsr 30 80 TC4002A 02WAO0 A00 Page 3 of 18 4 Electrical Characteristics Input High Volt vw eo gt v o 10 m 5 Backlight Information Absolute Maximum ratings Ta 25 C Item n Reverse voltage pw a V Reverse Current e A MC tp Vr Absolute maximum forward Current lfm fp 400 Power dissipation Pd 1400 Operating Temperature Range Toe o AA Storage Temperature Range Tt 4080 ec Electrical Optical Characteristics2. m Pins RE Data Output Delay Time t m0 ns Pnsoeooer Data noid time tee so _ ns emosooe____ TC4002A 02WAO0 A00 Page 14 of 18 13 Initializing flow chart e 8 bit interface mode Power on Condition Lae 270KHz Wait for moe than 20ms after V Bs rises to 4 5V wait for more than 30ms after V Dn rises to 2 7V x O Idinemode OT5X8 dos ofofo o ili N F x x_ pocer 1 display on 0 lol5l0lololilp5lcla D blink off ojojo o o o ojo o 1 d t mod cue ojojo o o o o t m y 0 entire shift off entire shift on TC4002A 02WAO0 A00 Page 15 of 18 O 4 bit interface mode Power on Wait for moe than 20ms after V pp rises to 4 5V Condition yy 270KHz Wait for more than 30ms after Y E rises to 2 7 V ET 0 0 0 0 1 J0 X X X X x ofoofo tetxeek oss me eTeTNIEIXIXIXIXIX X SXI dot Wait for more than 37us 0 display off Display ON OFF Control display on 0 0 0J0 0 X X X X 0 1J JDJ C B X X X X 5 EE JE wE Wait for more than 37us Display Clear RW DB7 0 0 0 o o X X x Oo fotolia yx x X X EE Wait for more than 1 52ms RWB e o o o o x x x X o o o sS X X X x 0 decreament mode E RS E ees Initialization end TC4002A 02WAO0 A00 Page 16 of 18 14 Standard Character Higher 4 bit of character code Hex oO 1 2 3 4 3 6 7 8B 9 A B C D E oca AAA Aaa a PY a HII S as e DSCs es000ehee
3. I D value I D 1 shift left I D O shift right 4 m ON OFF Control RW DB7 DB6 DB5 DB4 zx DB2 3 DBO Control display cursor blink ON OFF 1 2 register D Display ON OFF control bit When D High entire display is turned on When D Low display is turned off but display data is remained in DDRAM C Cursor ON OFF control bit When C High cursor is turned on When C Low Cursor is disappeared in current display but I D register remains its data B Cursor Blink ON OFF control bit When B High cursor blink is on that performs alternate between all the high data and display character at the cursor position When B Low blink is off TC4002A 02WA0 A00 Page 11 of 18 5 Cursor or Display Shift RS RW DB7 DB6 DB5 DB4 DB3 DB2 DB1 DBO L5 15g Ju q1 9 SESE eee shifting of right left cursor position or display Without Writing or reading of display data shift right left cursor position or display This instruction is used to correct or search display data refer to Table 4 During 2 line mode display cursor moves to the 2nd line after 40th digit of 1st line Note that display shift is performed simultaneously in all the line When displayed data is shifted repeatedly each line shifted individually When display shift is performed the contents of address counter are not changed S C R L Operation SC RL operaton olo Shift the cursor to the left AC is decreased by 1 Lo A
4. SOFA CT ET CTI ELIT e a ORSAI ORBE ae 1m e Sie TR RES ES TOBAR Ia CT E RE in JO 189 E NI 8 fs es t mt e YM ef a 0 de 3 AA OA ae e A e AAA m la 5 e Rae a s i A 10480 10 8 0216 d Lower 4 bit of character co TC4002A 02WAO0 A00 Page 17 of 18 15 Revision records A00 All Pages New release 2005 03 01 TC4002A 02WAO0 A00 Page 18 of 18
5. TC4002A 02WA0_A00 Page 7 of 18 9 Application circuit z DB0 1 DBI 2 2 DB2 3 10 DB3 4 gt 11 DB4 5 12 DB5 6 13 DB6 7 ATS89C52 14 DB7 8 7 ake 15 A 5 10 Use 16 K 0V 11 ris l6 Im u 19 BA NE g Xl RESET x2 INTO ALE P 10 LCD Function Description The LCD display Module is built in a LSI controller the controller has two 8 bit registers an instruction register IR and a data register DR The IR stores instruction codes such as display clear and cursor shift and address information for display data RAM DDRAM and character generator CGRAM The IR can only be written from the MPU The DR temporarily stores data to be written or read from DDRAM or CGRAM When address information is written into the IR then data is stored into the DR from DDRAM or CGRAM By the register selector RS signal these two registers can be selected Various Kinds of Operations according to RS and R W Bits 0 IR write as an internal operation display clear etc MEN busy flag DB 7 and address counter DBO to DB7 Write data to DDRAM or CGRAM DR to DDRAM or CGRAM Read data from DDRAM or CGRAM DDRAM or CGRAM to DR Busy Flag BF When the BF High it indicates that the LCM internal operation is being processed So during this time the next instruction cannot be accepted BF can be read when RS Low and R W High Read Instruction Operation through DB7 port Before executing the next instruction be sure t
6. Ta 259C IfZ80mA Operating Wavelength opectral line half Forward Voltage v p nm widthA A nm Current mA V V V V V V mA Supply Current Peak forward current 0 15V TC4002A 02WAO0 A00 Page 4 of 18 6 Optical Characteristics ITEM SYMBOL CONDITION MIN TYP MAx UNIT we oer pw n e we View Angles MC ontrast Ratio Brightness at selected state BS Brightness at non selected date Bns Selected state Non selected state 7 Visual angle direction CR Brightness a Operating voltage for LED driving WE esponse time Mons lected Condition Selected Condition Monge lected Condition Bnughtness 100 a use Time Decay Time fall time tf TC4002A 02WAO0 A00 Page 5 of 18 7 Interface Description Lal Me we sw Ponerse O O w wem Jorwingvotosroricn MAMA Me i mw wt ma te Le pma 0 ET t tabs Da7 evens Fao meon 5 wuoouepem reo fcaroeoruen saaan mE E NEM E Pin No LE EN EUN 15 a MOE A MN NN NM TC4002A 02WAO0 A00 Page 6 of 18 8 Contour Drawing amp Block Diagram 7 86 III C10 O Oo ANON TAOONOO JOOOOCO glt I HE I I 000000 od EST DO UI Cc eo 33 50 0 50 a PX en A P2 54 7 17 78 MEA ERU 5 04 ETT BHEETT qaes DBO DB LCD 16COM LCD PANEL VSS Controller Mi 40CharactersX2Lines VDD S6A0066U RS RW segment driver A K LED BACKLIGHT
7. BO o T 1 Ter ace acs Ace acs ace Act Aco This instruction shows whether LCM is in internal operation or not If the resultant BF is High it means the internal operation is in progress and you have to wait until BF to be Low and then the next instruction can be performed In this instruction you can read also the value of address counter p Write data to RAM RW DB7 DB6 DB5 DB4 DB3 DB2 DB1 DBO Co po os os 04 03 02 b TD Write binary 8 bit data to DDRAM CGRAM The selection of RAM from DDRAM CGRAM is set by the previous address set instruction DDRAM address set CGRAM address set RAM set instruction can also determine the AC direction to RAM After write operation the address is automatically increased decreased by 1 according to the entry mode ig data from RAM RW DB7 DB6 DB5 DB4 DB3 DB2 DB1 DBO CT 1 TorT 06 0s 04 03 02 To T 00 Read binary 8 bit data from DDRAM CGRAM The selection of RAM is set by the previous address set instruction If address set instruction of RAM is not performed before this instruction the data that read first is invalid because the direction of AC is not determined If you read RAM data several times without RAM address set instruction before read operation you can get correct RAM data from the second but the first data would be incorrect because there is no time margin to transfer RAM data In case of DDRAM read operation cursor shift instruction plays the same role as DDRAM address set ins
8. LCD Module User Manual Customer Ordering CODE TC4002A 01XA0 DRAWING NO m TC4002A 01XA0 A00 Approved By Customer Approved By Checked By Prepared By TC4002A 02WAO0 A00 Page 1 of 18 Contents 1 Precautions in Use of LCD Module P3 2 General Specification P3 3 Absolute Maximum Ratings P3 4 Electrical Characteristics P4 o Backlight Information P4 6 Optical Characteristics P5 7 Interface Description P6 8 Contour Drawing 4 Block Diagram P 9 Application circuit P8 10 LCD Function Description P8 11 User instruction Definitions P10 11 1 Instruction table P10 11 2 Instruction description P11 12 Timing Characteristics P14 13 Initializing flow chart P15 14 Standard Character pattern
9. Shift the cursor to the right AC is increased by 1 a 4 9 Shift all the display to the left cursor moves according to the display Shift all the display to the right cursor moves according to the display 6 Function Set RS RW DB7 DB6 DB5 DB4 DB3 DB2 DB1 DBO pao 0 0 11p TNF e qos DL Interface data length control bit When DL High it means 8 bit bus mode with MPU When DL Low it means 4 bit bus mode with MPU When 4 bit bus mode it needs to transfer 4 bit data by two times N Display line number control bit When N Low it means 1 line display mode When N High 2 line display mode is set F Display font type control bit When F Low it means 5 x 8 dots format display mode When F High 5 x11 dots format display mode 7 Set CGRAM Address RS RW DB7 DB6 DB5 DB4 DB3 DB2 DB1 DBO o o o 1 ACS ACA ac3 AC2 Act ACO Set CGRAM address to AC This instruction makes CGRAM data available from MPU 8 Set DDRAM Address RS RW DB7 DB6 DB5 DB4 DB3 DB2 DB DBO o 0 1 ace acs ACA AC3 AC2 AC1 aco Set DDRAM address to AC This instruction makes DDRAM data available from MPU When 1 line display mode N 0 DDRAM address is from OOH to 4FH In 2 line display mode N 1 DDRAM address is the 1st line is from 00H to 27H and DDRAM address in the 2nd line is from 40H to 67H TC4002A 02WAO0 A00 Page 12 of 18 a Busy Flag amp Address RW DB7 DB6 DB5 DB4 DB3 DB2 DB1 D
10. VX 0 0 0 0 1 1 1 1 Xo ex a ex ee O EUIS oooo 000 oocoooMooo oooo 000 4 X don t care TC4002A 02WAO0 A00 Page 9 of 18 11 User instruction Definitions 11 1 Instruction table Instruction Code Execution Instruction Description time RS R W DB DB6 DB5 DB4 DB3 DB2 DB1 DBO fosc 270KHz 1 52ms 37u s 37H s Clear Write 20H to DDRAM Display 1 land set DDRAM address 1 52ms to 00H from AC oet DDRAM address to DOH from AC and return Return cursor to its original Home position if shifted The contents of DDRAM are not changed Assign cursor moving p VOR MEE direction and make shift of 3 us Set l l entire aa enable Display oet display D cursor C ON OFF Do blinking cursor B 37H s control on off control bit oet cursor moving and display shift control bit La Pied cad a and the direction without changing DDRAM data Set interface data length DL 4 bit 8 bit l numbers of display line N FURCUOR Set De Hi ads 1 line 2 line display a type F 5X8 dots 5X11 dots Guess 0 1 AGB AC4 AcS c2 Act faco ms Address address counter Adess 0 acejacs laca AcS c2 Act faco ms Address address counter Whether during internal operation or can not be BF AC6 AC5 ACA AC3 AC2 AC1 ACO known by reading BF The Ou s contents of address counter can also be r
11. ead Write Data to data into internal RAM pt 0 for oe os pa os oa D1 po RAWDORAWCORAM 40 Read Data Read a from internal Remark X don t care TC4002A 02WAO0 A00 Page 10 of 18 11 2 Instruction Description yeu Display RW DB7 DB6 DB5 DB4 DB3 DB2 DB zs Clear all the display data by writing 20H space code to all n address and set DDRAM address to 00H into AC address counter Return cursor to the original status Namely bring the cursor to the left edge on first line of the display Make entry mode increment I D 1 2 Home RW DB7 DB6 DB5 DB4 DB3 DB2 2 DBO Return Home is cursor return home instruction Set or address to OOH into the address counter Return cursor to its original site and return display to its original status if shifted Contents of DDRAM do not change 3 id Mode Set RW DB7 DB6 DBS DB4 DB3 DB2 DB1 DBO rototololololol1 wl si Set the moving direction of cursor and display I D Increment decrement of DDRAM address cursor or blink When I D High cursor blink moves to right and DDRAM address is increased by 1 When I D Low cursor blink moves to left and DDRAM address is decreased by 1 CGRAM operates the same as DDRAM when read from or write to CGRAM SH Shift of entire display When DDRAM read CGRAM read write operation or SH Low shift of entire display is not performed If SH High and DDRAM write operation shift of entire display is performed according to
12. hat BF is not High Address Counter AC Address Counter AC stores DDRAM CGRAM address After writing into reading from DDRAM CGRAM AC is automatically increased decreased by 1 When RS Low and R W High AC can be read through DBO DB6 ports TC4002A 02WAO0 A00 Page 8 of 18 Display Data RAM DDRAM This DDRAM is used to store the display data represented in 8 bit character codes Below figure is the relationships between DDRAM addresses and positions on the liquid crystal display High bits Low bits Example DDRAM addresses 4E Se BORE ace Acs Ace Acs Acz aci aco i oto i i 1 o LCD DDRAM Address In HEX 40 Chars X 2 Lines Display No 41 2 3 4 5 6 7 8 9 10 1 37 38 39 40 une oo or oz oa os os o or o o on 26 28 20 2r 24 Line 40 41 42 43 44 45 46 47 48 49 4A 64 65 66 67_ Character Generator ROM CGROM The CGROM generate 5x8 dot or 5x10 dot character patterns from 8 bit character codes See Standard Character pattern Character Generator RAM CGRAM In CGRAM the user can rewrite character by program Relationship between Character Code DDRAM and Character Pattern CGRAM shown below Char Code DDRAM data CGRAM address CGRAM data number D7 D6 D5 D4 D3 D2 D1 D0 A5 A4 A3 A2 A1 A0 P7 P6 P5 PA P3 P2 P1 PO 0000x 00 0 0 0 0 0 X X X O0 oOoO O O O
13. truction it also transfer RAM data to output data register After read operation address counter is automatically increased decreased by 1 according to the entry mode After CGRAM read operation display shift may not be executed correctly n case of RAM write operation after this AC is increased decreased by 1 like read operation In this time AC indicates the next address position but you can read only the previous data by read instruction TC4002A 02WAO0 A00 Page 13 of 18 12 Timing Characteristics Write mode timing diagram Writing Data from MPU to LCM DBO DB7 Write mode Writing Data from MPU to LCM Characteristics Symbol FISCI S Test Condition Typ Max ecycetme te so m pe 5 55050 00 EPwueWan tw 20 m pre 5 0 00 ERseFalim tete j 2 ns in Address Setup Time te 4o m Prsrsrwe 5 Address Hold Time to wo ns Prsrsrwe Data Setup Time te so ns pnsoo o7 DaaHodTme te 10 ns pnsoeooy oo Read mode timing diagram Reading Data from LCM to MPU Vint p RN V IL1 tc Read mode Reading Data from LCM to MPU Characteristics smo IL at Test Condition Typ Max E Cycle Time og 9o m mE 5 E Pulse Width Low mw ene _ _____ ERiselfalTime tete m re _ Address Setup Time tm 40 ns Pins RE Address Hold Time tw to
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