Bolymin, Inc. LCD MODULE SPECIFICATION MODEL NO. BC1601A series FOR MESSRS: ________________________________________________ ON DATE OF: ________________________________________________ APPROVED BY: ________________________________________________ Bolymin, Inc. CONTENTS 1. Numbering System 2. Precautions in use of LCD Modules 3. General Specification 4. Absolute Maximum Rating 5. Electrical Characteristics 6. Optical Characteristics 7. Interface Pin Function 8. Power supply for LCD Module and LCD operating voltage adjustment 9. Backlight information 10. Quality Assurance 11. Reliability 12. Appendix (Drawing , EL inverter data , KS0066 controller data) 12-1 Drawing 12-2 EL inverter data (P/N:IVEL-01) 12-3 KS0066 controller data 12-3.1 Function description 12-3.2 C.G ROM table. table 2 12-3.3 Instruction table 12-3.4 Timing characteristics 12-3.5 Initializing soft ware of LCM Bolymin, Inc. 1. Numbering System B C 2004 A G P L E B xxx 0 1 2 3 4 5 6 7 8 9 0 Brand Bolymin 1 Module Type C= character type G= graphic type P= TAB/TCP type 2 Format 2002=20 characters, 4 lines 12232= 122 x 32 dots 3 Version No. A type 4 LCD Color G=STN/gray Y=STN/yellow-green C=color STN B=STN/blue F=FSTN T=TN 5 LCD Type R=positive/reflective P=positive/transflective M=positive/transmissive N=negative/transmissive 6 Backlight type/color L=LED array/ yellow-green H=LED edge/white R=LED array/red G=LED edge/yellow-green D=LED edge/blue E=EL/white B=EL/blue C=CCFL/white 7 CGRAM Font J=English/Japanese Font E=English/European Font C=English/Cyrillic Font H=English/Hebrew Font 8 View Angle/ Operating Temperature T=Top/Normal Temperature W=Top/Wide Temperature C=9H/Normal Temperature 9 Special Code B=Bottom/Normal Temperature H=Bottom/Wide Temperature U=Bottom/Ultra wide Temperature 3=3 volt logic power supply n=negative voltage for LCD c=cable/connector xxx=to be assigned on data sheet O= COG type F= COF type t=temperature compensation for LCD p=touch panel Bolymin, Inc. 2. Precaution 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. (3) Don't disassemble the LCM. (4) Don't operate it above the absolute maximum rating. (5) Don't drop, bend or twist LCM. (6) Soldering: only to the I/O terminals. (7) Storage: please storage in anti-static electricity container and clean environment. (8) Don't touch the elastmer connecter, especially insert a backlight panel (EL or CCFL) 3. General Specification (1) Mechanical Dimension Item Number of Characters Module dimension ( LxWx H ) Dimension Unit 16characters x 1 Lines 80.0 x 36.0 x 13.2(Max)- LED array B/L, LED edge B/L (white, blue) 80.0 x 36.0 x 9.4 (Max) - LED edge / blue B/L, EL or No B/L mm View area 66.0 x 16.0 mm Active area 59.62 x 6.56 mm Dot size 0.55 x 0.75 mm Dot pitch 0.63 x 0.83 mm Character size ( L x W ) 3.07 x 6.56 mm Character pitch ( L x W ) 3.77 x 6.56 mm (2) Controller IC: KS0066 (or Equivalent) controller (3) Temperature Range Operating Storage Normal Wide 0 ~+50 -20 ~+70 -10 ~+60 -30 ~+80 Bolymin, Inc. 4. Absolute Maximum Ratings 4.1 Electrical Absolute Maximum Ratings (Vss=0V, Ta=25) Item Symbol Min Max Unit Supply Voltage (Logic) Vdd-Vss -0.3 7 V Supply Voltage (LCD Driver) Vdd-Vo -0.3 13 V VI Vss Vdd V TOP 0 +50 TSTG -10 +60 Top -20 +70 Tstg -30 +80 Input Voltage Normal Type Wide Temperature Type 4.2 Environmental Absolute Maximum Ratings Operating Storage Item Comment (Min.) Humidity (Max.) (Min.) Note (2) (Max.) Note (2) Without condensation Vibration -- 4.9M/S2 -- 19.6M/S2 XYZ Direction Shock -- 29.4M/S2 -- 490M/S2 XYZ Direction Note (1) Ta = 050Hr Max. Note (2) Ta 4090% RH MAX Ta > 40Absolute humidity must be lower than the humidity of 90% at 40. Bolymin, Inc. 5. Electrical Characteristics Item Supply Voltage For Logic Symbol Condition Min Typ Max Unit Vdd-Vss 3.0 5.5 V 5.5 V Ta=0 V Ta=25 4.5 V Ta=50 V 3.8 V Ta=-20 Supply Voltage For LCD Vdd-Vo Wide TempType Ta=+70 Input High Volt. VIH 2.2 Vdd V Input Low Volt. VIL 0.6 V Output High Volt. VOH 2.4 V Output Low Volt. VOL 0.4 V Supply Current Idd Vdd=5V 1.2 mA Bolymin, Inc. 6. Optical Characteristics a. STN Item Symbol Condition Min. Typ. Max. Unit (V) CR2 10 45 deg (H) CR2 -30 30 deg CR 3 Response Time T rise 100 150 ms 25 T fall 150 200 ms Symbol Condition Min. Typ. Max. Unit (V) CR3 10 60 deg (H) CR3 -45 45 deg CR 5 Response Time T rise 100 150 ms 25 T fall 150 200 ms View Angle Contrast Ratio b. FSTN Item View Angle Contrast Ratio Bolymin, Inc. 6.1 Definitions View Angles Contrast Ratio Z Brightness at selected state ( BS ) Brightness at non-selected state ( Bns ) Selected state ( Visual angle direction ) CR = LCD X Brightness (%) Non-selected state Bs Bns Y Operating voltage for LCD driving ( Best visual angle direction ) Response Time Selected Condition Nonselected Condition 90 % 100 % Brightness Nonselected Condition 10 % tr Rise Time td Decay Time ( fall time tf ) Bolymin, Inc. 7. Interface Pin Function Pin No. Symbol Level Description 1 Vss 0V 2 Vdd 5.0V 3 Vo 4 RS H/L H:DATA, L:Instruction code 5 R/W H/L H:Read(MPUModule)L:Write(MPUModule) 6 E 7 DB0 H/L Data bit 0 8 DB1 H/L Data bit 1 9 DB2 H/L Data bit 2 10 DB3 H/L Data bit 3 11 DB4 H/L Data bit 4 12 DB5 H/L Data bit 5 13 DB6 H/L Data bit 6 14 DB7 H/L Data bit 7 15 A / Vee Power supply for LED backlight ( + ) / Negative voltage output 16 K Power supply for LED backlight ( - ) Ground Supply Voltage for logic (option +3V) (Variable) Operating voltage for LCD H,HL Chip enable signal Bolymin, Inc. 8. Power Supply for LCD Module and LCD Operating Voltage a Adjustment Standart Type LCM Vdd Vo Vss DC 5V typ.: 4.5V VR (Recomment) (Option)LCM operating on " DC 3V " input , with external negative LCM Vdd DC 3V Vss VR Vo typ.: 4.5V Negative volt -3v (Option) LCM operating on " DC 3V " input , with built-in negative Voltage LCM Vdd DC 3V built-in N.V generator or Temp. compensation circuit Vss Vo typ.: 4.5V Vee -3V VR Bolymin, Inc. 9.Backlight Information 9.1 Specification (1) LED array / yellow-green Parameter Symbol Min Typ Supply Current ILED 100 Supply Voltage V 4.2 4.3 V Reverse Voltage VR 8 V Luminous Intensity IV 60 cd/m2 ILED=100mA Wave Length p nm ILED=100mA Hr. V4.2V 574 Life Time Max 100000 Color Unit Test Condition mA V=4.2V Yellow Green (2) LED edge / (white / blue) Parameter Symbol Min Typ Max Unit Test Condition Supply Current ILED 20 25 mA V=3.4V Supply Voltage V 3.4 3.5 V Reverse Voltage VR 8 V Luminous Intensity IV 50 cd/m2 ILED=20mA Hr. V3.4 V Life Time 10000-white 50000-blue Color White / Blue Bolymin, Inc. (3) EL / Blue Parameter Voltage Frequency Brightness* Symbol Vrms HZ cd/m2 Min --48 Typ 110 (AC) 400 60 X -- 0.1852 -- Y -- 0.3937 -- Current Dissipation mA/cm2 -- 1.33 -- mW/cm2 -- 26.29 -- CIE Chromaticity Diagram Power Dissipation Color Max Unit ---- Test Condition 110Vrms 400Hz Blue 9.2 Backlight driving methods a. LED B/L drive from pin15 (LED+) pin16 (LED-) a.1 array / yellow-green LCM ++15 (recommending) RL= 8.2 RL=0 +4.2V ILED=100mA Backlight +5V _ 16 a.2 edge / (white / blue) LCM + 15 RL=0 +3.4V Backlight _ (recom m ending) RL =56 or higher 16 I LED =20m A +5V Bolymin, Inc. b. LED B/L drive from A. K directly b.1 array / yellow-green LCM (recommending) RL= 8.2 RL=0 ++ A +4.2V ILED=100mA Backlight +5V _ K b.2 edge / (white/blue) LCM A + (recom m ending) RL =56 or higher RL=0 +3.4V Backlight _ I LED =20m A K c.(Option) LED B/L drive from pin1 (Vss) pin2 (Vdd) LCM Vdd +2 Backlight 1 - RL Vss (1) (2) (3) (4) Jump 1,2 Short Current Resistor required on RL Jump 15,16 open To be sure of enough current supply for both Vdd + LED B/L +5V Bolymin, Inc. d. EL B/L drive from A.K directly EL Panel Backlight +110V A K Inverter AC DC LCM DC+5V Bolymin, Inc. 10. Quality Assurance 10.1 Inspection conditions The LCD shall be inspected under 40W white fluorescent light. 45 Definition of applicable Zones B A LCD BEZEL PCB A :D isp la y A re a B : N o n -D isp la y A re a Bolymin, Inc. 10.2 Inspection Parameters NO. Parameter 1 Black or White spots Criteria Zone A B Class Of Defects D0.15 * * Minor 0.15D0.2 4 4 0.2D0.25 2 2 D0.3 0 1 Dimension Acceptable Number D=(Long + Short)/2 2 Acceptable Level 2.5 *: Disregard Scratch, Substances Zone A B Class Of Defects 0.04W * * Minor 3.0L 0.06W 4 4 2.0L 0.08W 2 3 0 1 Acceptable Number X(mm) Y(mm) * 0.1W Acceptable Level 2.5 X: Length Y : Width * : Disregard Total defects should not exceed 4/module 3 Air Bubbles (between glass & polarizer) Zone Acceptable A B Class Of Defects D0.15 * * Minor 0.15D0.25 2 * 0.25D 0 1 Number Dimension *: Disregard Total defects shall not excess 3/module. Acceptable Level 2.5 Bolymin, Inc. (1) Pixel shape (with Dent) 0.152 (2) Pixel shape (With Projection) Should not be connected to next pixel Uniformity 4 0.152 (3) Pin hole X Y (X+Y)/20.02mm (Less than 0.1mm is no counted) (4)Deformation X (X+Y)/2 0.3mm Y Total acceptable number : 1/pixel,5/cell Bolymin, Inc. 11. Reliability Content of Reliability Test Environmental Test No. Test Item Content of Test Test Condition Applicable Standard 60 Endurance test applying the high ---- storage temperature for a long time. 200hrs -20 Endurance test applying the high ---- storage temperature for a long time. 200hrs Endurance test applying the electric 50 High Temperature stress (Voltage & Current) and the ---- 3 thermal stress to the element for a Operation 200hrs long time. Endurance test applying the electric 0 Low Temperature 4 stress under low temperature for a ---- Operation 200hrs long time. Endurance test applying the high 60,90%RH High Temperature/ 5 temperature and high humidity ---- Humidity Storage 96hrs storage for a long time. Endurance test applying the electric 40,90%RH High Temperature/ stress (Voltage & Current) and ---- 6 Humidity Operation temperature / humidity stress to the 96hrs element for a long time. Endurance test applying the low and high temperature cycle. -20/60 -20 25 60 ---- 7 Temperature Cycle 10 cycles 30min 5min 30min 1 cycle Mechanical Test 10~22Hz1.5mmp-p Endurance test applying the vibration 8 Vibration test ---- 22~500Hz1.5G during transportation and using. Total 0.5hrs Constructional and mechanical 50G Half sign 9 Shock test endurance test applying the shock wave 11 msedc ---- during transportation. 3 times of each direction Endurance test applying the Atmospheric 115mbar 10 atmospheric pressure during ---- pressure test 40hrs transportation by air. Others VS=800V,RS=1.5k Endurance test applying the electric 11 Static electricity test ---- CS=100pF stress to the terminal. 1 time ***Supply voltage for logic system=5V. Supply voltage for LCD system =Operating voltage at 25 High Temperature storage Low Temperature 2 storage 1 Bolymin, Inc. 12. Appendix ( Drawing , EL inverter data , KS0066 controller data) 12-1 Drawing As shown on next page Bolymin, Inc. 12-2 EL inverter data (P/N:IVEL-01) As shown on next page Bolymin, Inc. EL Inverter Specification P/N: IVEL-01 Customer Date Part No IVEL-01 Item 99/12/03 DC/AC INVERTER Rev A Dwg. No Specification 2 Input(V/Dc) Output(V/Ac) Frequency(Hz) Input(mA/Dc) El range(c ) Test Dummy Load=El(cm ) 5V/DC10% 80V15% 600Hz20% 60mA TYP. 30~80 c Test Condtion:@25. Dc 5V & Standard Dummy Load. Test equipment : 1. Millimeter : FLUKE 87S Millimeter. 2. Oscilloscope : Tektromic TDS210 Digital Oscilloscope. 3. Power supply : Gw GPC-3030D Dc Power Supply. 4. Load : EPI - LOAD - 01 Multi Range Load. Operation Temperature : -10 +70 O G 4.5 PIN I G O Prepare: Description Input DC Voltage. DC/AC ground. Output AC Voltage. Checked: I 5.1 9.5 E5652Z 15.0 21.0 31.0 2.5 Storage Temperature : -30 +80 Note : 1. Warning : output do not open or short . Inverter may be burnout. 20.0 Tolerance: 0.5mm Approval: 22nF//66.6K Bolymin, Inc. 12-3. KS0066 controller data 12-3.1 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. RS R/W 0 0 IR write as an internal operation (display clear, etc.) 0 1 Read busy flag (DB7) and address counter (DB0 to DB7) 1 0 Write data to DDRAM or CGRAM (DR to DDRAM or CGRAM) 1 1 Busy Flag (BF) Operation Read data from DDRAM or CGRAM (DDRAM or CGRAM to DR) When the busy flag is 1, the controller LSI is in the internal operation mode, and the next instruction will not be accepted. When RS=0 and R/W=1, the busy flag is output to DB7. The next instruction must be written after ensuring that the busy flag is 0. Address Counter (AC) The address counter (AC) assigns addresses to both DDRAM and CGRAM Display Data RAM (DDRAM) This DDRAM is used to store the display data represented in 8-bit character codes. Its extended capacity is 80x8 bits or 80 characters. Below figure is the relationship between DDRAM addresses and positions on the liquid crystal display. High bits Low bits Example:DDRAM addresses 4E AC (hexadecimal) AC6 AC5 AC4 AC3 AC2 AC1 AC0 1 0 0 1 1 1 0 Bolymin, Inc. DDRAM Address Display position DDRAM address 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 00 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F 40 41 42 43 44 45 46 47 48 49 4A 4B 4C 4D 4E 4F Example: 2-Line by 16-Character Display Character Generator ROM (CGROM) The CGROM generate 5x8 dot or 5x10 dot character patterns from 8-bit character codes. See Table 2. Character Generator RAM (CGRAM) In CGRAM, the user can rewrite character by program. For 5x8 dots, eight character patterns can be written, and for 5x10 dots, four character patterns can be written. Write into DDRAM the character code at the addresses shown as the left column of table 1. To show the character patterns stored in CGRAM. Bolymin, Inc. Relationship between CGRAM Addresses, Character Codes (DDRAM) and Character Patterns (CGRAM Data) F o r 5 * 8 d o t c h a ra c te r p a tte rn s C h a ra c te r C o d e s ( D D R A M d a ta ) 7 6 5 4 3 2 1 0 H ig h 0 0 0 0 0 0 0 0 0 0 0 0 Low * 0 0 0 * 0 0 1 * 1 1 1 C h a ra c te r P a tte rn s ( C G R A M d a ta ) C G R A M A d d re s s 5 4 3 2 1 0 H ig h Low 0 0 0 0 0 1 0 1 0 0 0 1 0 1 0 1 1 1 1 0 0 0 0 0 1 0 1 0 0 1 1 0 1 0 1 1 1 1 0 0 0 0 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 1 1 1 1 1 1 1 0 1 0 1 0 0 1 1 7 6 5 4 3 2 1 0 H ig h * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * L ow 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 C h a ra c te r p a tte rn ( 1 ) 0 0 0 0 C h a ra c te r p a tte rn ( 2 ) 0 0 0 0 0 0 0 0 0 0 0 0 0 C u rs o r p a tte rn C u rs o r p a tte rn * * * F o r 5 * 1 0 d o t c h a ra c te r p a tte rn s C h a ra c te r C o d e s ( D D R A M d a ta ) 7 6 5 4 3 2 1 0 H ig h 0 0 0 0 Low * 0 0 0 C G R A M A d d re s s 5 4 3 2 1 0 H ig h 7 6 5 4 3 2 1 0 Low 0 0 0 0 0 0 0 0 0 0 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 0 1 1 0 0 1 1 0 0 1 H ig h 0 1 0 1 0 1 0 1 0 1 0 1 1 1 1 : " H ig h " C h a ra c te r P a tte rn s ( C G R A M d a ta ) * * * * * * * * * * * * * * * * * * * * * * Low * 0 0 0 0 0 * 0 0 0 0 0 * 0 0 * 0 0 * 0 0 0 * 0 0 0 * 0 * 0 0 0 0 * 0 0 0 0 * 0 0 0 0 * 0 0 0 0 0 * * * * * * * * C h a ra c te r p a tte rn C u rs o r p a tte rn Bolymin, Inc. 12-3.2 C.G ROM table. table 2 Code J: English - Japanese Font U p p er 4 b it L ow er 4 b it LLLL LLLL CG RAM ( 1 ) LLLH ( 2 ) LLHL ( 3 ) LLHH ( 4 ) LHLL ( 5 ) LHLH ( 6 ) LHHL ( 7 ) LHHH ( 8 ) HLLL ( 1 ) HLLH ( 2 ) HLHL ( 3 ) HLHH ( 4 ) HHLL ( 5 ) HHLH ( 6 ) HHHL ( 7 ) HHHH ( 8 ) LLLH LLHL LLHH LHLL LHLH LHHL LHHH HLLL HLLH HLHL HLHH HHLL HHLH HHHL HHHH Bolymin, Inc. Code E: English - European Font Upper 4 bit Lower 4 bit LLLL LLLH LLHL LLHH LHLL LHLH LHHL LHHH HLLL HLLH HLHL HLHH HHLL HHLH HHHL HHHH LLLL CG RAM (1) LLLH CG RAM (2) LLHL CG RAM (3) LLHH CG RAM (4) LHLL CG RAM (5) LHLH CG RAM (6) LHHL CG RAM (7) LHHH CG RAM (8) HLLL CG RAM (1) HLLH CG RAM (2) HLHL CG RAM (3) HLHH CG RAM (4) HHLL CG RAM (5) HHLH CG RAM (6) HHHL CG RAM (7) HHHH CG RAM (8) Bolymin, Inc. Code C: English - Cyrillic Font Upper 4 bit Lower 4 bit LLLL LLLH LLHL LLHH LHLL LHLH LHHL LHHH HLLL HLLH HLHL HLHH HHLL HHLH HHHL HHHH LLLL CG RAM (1) LLLH CG RAM (2) LLHL CG RAM (3) LLHH CG RAM (4) LHLL CG RAM (5) LHLH CG RAM (6) LHHL CG RAM (7) LHHH CG RAM (8) HLLL CG RAM (1) HLLH CG RAM (2) HLHL CG RAM (3) HLHH CG RAM (4) HHLL CG RAM (5) HHLH CG RAM (6) HHHL CG RAM (7) HHHH CG RAM (8) Bolymin, Inc. 12-3.3 Instruction table Instruction Code Instruction Description Execution time (fosc=270 Khz) Write "00H" to DDRAM and set DDRAM address to "00H" from AC 1.53ms RS R/W DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0 Clear Display 0 0 0 0 0 0 0 0 Return Home 0 0 0 0 0 0 0 0 Entry Mode Set 0 0 0 0 0 0 0 1 Display ON/OFF Control 0 0 0 0 0 0 1 D Cursor or Display Shift 0 0 0 0 0 1 Function Set 0 0 0 0 1 DL 0 0 0 1 0 0 1 Set CGRAM Address Set DDRAM Address 0 1 1 Set DDRAM address to "00H" from AC and return cursor to its original position if shifted. The contents of DDRAM are not changed. Assign cursor moving direction I/D SH and enable the shift of entire display. C S/C R/L N F Set display (D), cursor (C ), and B blinking of cursor (B) on/off control bit. Set cursor moving and display shift control bit, and the direction, without changing of DDRAM data. Set interface data length (DL:8-bit/4-bit), numbers of display line (N:2-line/1-line)and, display font type (F:5x11 dots/5x 8 dots) 1.53ms 39s 39s 39s 39s AC5 AC4 AC3 AC2 AC1 AC0 Set CGRAM address in address counter. 39s AC6 AC5 AC4 AC3 AC2 AC1 AC0 Set DDRAM address in address counter. 39s Read Busy Flag and Address 0 1 Whether during internal operation or not can be known by reading BF AC6 AC5 AC4 AC3 AC2 AC1 AC0 BF. The contents of address counter can also be read. Write Data to RAM 1 0 D7 D6 D5 D4 D3 D2 D1 D0 Write data into internal RAM (DDRAM/CGRAM). 43s Read Data from RAM 1 1 D7 D6 D5 D4 D3 D2 D1 D0 Read data from internal RAM (DDRAM/CGRAM). 43s ""don't care 0s Bolymin, Inc. 12-3.4 Timing characteristics 12-3.4.1 Write Operation VIH1 RS VIH1 VIL1 VIL1 tAS R/W tAH VIL1 VIL1 PWEH VIH1 E tAH tEf VIH1 VIL1 VIL1 tEr VIL1 tDSW tH VIH1 DB0 to DB7 VIL1 VIH1 Valid data VIL1 tcycE Ta=25, Vdd=5.00.5V Item Symbol Min Typ Max Unit tcycE 500 ns Enable pulse width (high level) PWEH 230 ns Enable rise/fall time tEr,tEf 20 ns Address set-up time (RS, R/W to E) tAS 40 ns Address hold time tAH 10 ns Data set-up time tDSW 80 ns tH 10 ns Enable cycle time Data hold time Bolymin, Inc. 12-3.4.2 Read Operation VIH1 RS VIH1 VIL1 VIL1 t t AS AH VIH1 R/W VIH1 PWEH E tAH tEf VIH1 VIH1 VIL1 VIL1 t Er t VOH1 DB0 to DB7 VIL1 tDHR DDR VOL1* Valid data VOH1 *VOL1 tcycE NOTE: *VOL1 is assumed to be 0.8V at 2 MHZ operation. Ta=25,Vdd=5.00.5V Item Symbol Min Typ Max Unit tcycE 500 ns Enable pulse width (high level) PWEH 230 ns Enable rise/fall time tEr,tEf 20 ns Address set-up time (RS, R/W to E) tAS 40 ns Address hold time tAH 10 ns Data delay time tDDR 100 ns Data hold time tDHR 5 ns Enable cycle time Bolymin, Inc. 12-3.5 Initializing soft ware of LCM 12-3.5.1 8-bit interface Power on Wait for more than 15 ms after V CC rises to 4.5 V BF can not be checked before this instruction. RS R/W DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0 Function set ( Interface is 8 bits long. ) 0 0 0 0 1 1 * * * * Wait for more than 4.1 ms BF can not be checked before this instruction. RS R/W DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0 Function set ( Interface is 8 bits long. ) 0 0 1 * * * * 0 0 1 Wait for more than 100 s BF can not be checked before this instruction. RS R/W DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0 Function set ( Interface is 8 bits long. ) 0 0 1 * * * * 0 0 1 BF can be checked after the following instructions. When BF is not checked , the waiting time between instructions is longer than execution instruction time. RS R/W DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0 0 0 1 0 0 1 N F * * 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 1 S I/D Initialization ends 8-Bit Ineterface Function set ( Interface is 8 bits long. Specify the number of display lines and font. ) The number of display lines and character font can not be changed after this point. Display off Display clear Entry mode set Bolymin, Inc. 12-3.5.2 4-bit interface Power on Wait for more than 15 ms after V CC rises to 4.5 V BF can not be checked before this instruction. RS R/W DB7 DB6 DB5 DB4 0 0 0 0 1 1 Function set ( Interface is 8 bits long. ) Wait for more than 4.1 ms BF can not be checked before this instruction. RS R/W DB7 DB6 DB5 DB4 0 0 0 1 1 0 Function set ( Interface is 8 bits long. ) Wait for more than 100 s BF can not be checked before this instruction. RS R/W DB7 DB6 DB5 DB4 0 0 0 1 1 0 RS R/W DB7 DB6 DB5 DB4 0 0 0 0 0 1 0 0 0 0 1 0 0 0 N F * * 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 I/D S Initialization ends 4-Bit Ineterface Function set ( Interface is 8 bits long. ) BF can be checked after the following instructions. When BF is not checked , the waiting time between instructions is longer than execution instruction time. Function set ( Set interface to be 4 bits long. ) Interface is 8 bits in length. Function set ( Interface is 4 bits long. Specify the number of display lines and character font. ) The number of display lines and character font can not be changed after this point. Display off Display clear Entry mode set