N NHD‐‐0220WH H‐MTFH‐JT##E Characterr Liquid Crystal Displaay Modu ule NHD‐‐ 0220 0‐ WH‐ M‐ T‐ F‐ H‐ JT#‐ E‐ Newhaven Display 2 Lines x 20 Ch haracters Display Type: C Character Model M White LED Bac W cklight FSSTN (+) White e Trransflective, 6 6:00 Optimal View En nglish and Jap panese Stand dard Font ESSD Protection n RoHS Compliant Newh haven Disp play Intern national, In nc. 2511 Techno ology Drive, SSuite 101 Elggin IL, 60124 Ph: 8 847‐844‐8795 5 Fax: 8847‐844‐87966 www.new whavendisplayy.com h@newhaven ndisplay.com [email protected] om nhtech Document Revision History Revision 0 1 2 3 4 5 Date 3/27/2007 7/6/2010 9/24/2010 3/1/2011 5/5/2011 2/4/2014 Description Initial Release User Guide Reformat P/N Change. Part now has ESD Protection Alternate controller information updated Electrical characteristics updated Format, timing, drawing updated Functions and Features 2 lines x 20 characters Built‐in controller (ST7066U) +5.0V Power Supply 1/16 duty, 1/5 bias RoHS compliant [2] Changed by ‐ MC MC AK AK ML L A I Mechanical Drawing 1 2 3 4 5 Rev 146.0 0.5 139.0 1.8 16 E D I K 8- 1.0 B 13.58 118.84(AA) 11.5 123.0(VA) 134.0 C MPU RS R/W E DB0~DB7 F N Com1~16 Controller/Com Driver ST7066U External contrast adjustment. 1 N.V. Generator VR 10K~20K Vdd Vo Vss Bias and Power Circuit O C 80 series or 68 series 9.1 T N 4- 3.5PTH A 7.0 18.97(AA) 36.0 33.8 23.0(VA) 43.0 0.5 1 D 13.7Max 16- 1.0PTH 16- 1.8PAD 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 1.6 LED B/L 6.0 4.84 0.98 0.92 20X2 LCD 1.16 1.1 1.5 P2.54*15=38.1 2.5 19.0 11.0 13.0 3.5 A 5.6 18.0 9.75 9.22 3.5 6 Description Date Vss Vdd Vo RS R/W E DB0 DB1 DB2 DB3 DB4 DB5 DB6 DB7 LED+ LED- A B C Seg1~40 Seg41~100 D Seg Driver DOT SIZE SCALE 5/1 M CL1 CL2 Vdd,Vss,V1~V5 D Date 02/04/14 Optional 2 3 4 Gen. Tolerance Unit ±0.3mm mm 5 Model: NHD-0220WH-MTFH-JT#E 6 The drawing contained herein is the exclusive property of Newhaven Display International, Inc. and shall not be copied, reproduced, and/or disclosed in any format without permission. [3] Pin Descripttion and W Wiring Diiagram Pin N No. Symbol 1 2 3 4 5 6 7‐10 0 VSS VDD V0 RS R/W W E DB0 – D DB3 External Connection Pow wer Supply Pow wer Supply Adj Po ower Supply MPU MPU MPU MPU 11‐1 14 15 16 DB4 – D DB7 LED+ + LED‐‐ MPU Pow wer Supply Pow wer Supply Function Desccription Ground Supply Voltage for logic (+5..0V) Power supply for contrast (aapprox. 0.5V) Register select signal. RS=0: Command, RSS=1: Data Read/Write se elect signal, R//W=1: Read R//W: =0: Write Operation enaable signal. Fa lling edge trigggered. Four low orde er bi‐directionaal three‐state d data bus lines. These four are not used d during 4‐bit opperation. Four high orde er bi‐directionaal three‐state data bus lines.. Power supply for LED Backligght (+3.5V) Ground for Baacklight Reco ommended LC CD connectorr: 2.54mm pittch pins Backklight connecttor: ‐‐‐ M Mates with: ‐‐‐ [4] Elecctrical Ch haracterisstics Item m Operaating Temperaature Range Storage Temperature Range Supply Voltage Supply Current Supply for LCD (con ntrast) “H” Level input “L” Leevel input “H” Level output “L” Leevel output Backlight Supply Vo oltage Backlight Supply Cu urrent Backlight Lifetime Symbol Top Tst VDD IDD VDD‐V0 Vih Vil Voh Vol Vled Iled ‐ Condiition Absolutte Max Absolutte Max Ta=25°C, V VDD=5.0V Ta=25°C Min. ‐20 ‐30 4.5 1.0 3.8 00.7 VDD VSS 3.9 ‐ TTyp. ‐ ‐ 5.0 1.2 4.5 ‐ ‐ ‐ ‐ ‐ Vled=3.5V Iled=4 48mA 3.4 44 ‐ 3.5 48 500,000 Max. +7 70 +8 80 5 5.5 1 1.5 5 5.5 VD DD 0 0.6 ‐ 0 0.4 3 3.6 7 75 ‐ Unitt ⁰C ⁰C V mA A V V V V V V mA A Hrs. Opttical Charracteristics Item m Viewiing Angle – Top p Viewiing Angle – Botttom Viewiing Angle – Lefft Viewiing Angle – Rigght Contrrast Ratio Respo onse Time (rise e) Respo onse Time (falll) Symbo ol ‐ ‐ ‐ ‐ Cr Tr Tf Condittion Cr ≥ 3 ‐ ‐ M in. ‐ ‐ ‐ ‐ 3 ‐ ‐ Typ. 20 50 30 30 5 1500 1500 Max. ‐ ‐ ‐ ‐ ‐ 250 250 Unit ⁰ ⁰ ⁰ ⁰ ‐ ms ms Con ntroller In nformatio on Built‐‐in ST7066U. Pleasse download specification at http://ww ww.newhaven ndisplay.com//app_notes/SST7066U.pdf Display Charracter Ad ddress Co ode [5] Tab ble of Com mmands [6] Tim ming Charracteristiccs Writting Data frrom MPU to ST7066U [7] Read ding Data ffrom ST706 66U to MPU U [8] Built‐in Fontt Table [9] Example Initialization Program 8-bit Initialization: /**********************************************************/ void command(char i) { P1 = i; //put data on output Port D_I =0; //D/I=LOW : send instruction R_W =0; //R/W=LOW : Write E = 1; Delay(1); //enable pulse width >= 300ns E = 0; //Clock enable: falling edge } /**********************************************************/ void write(char i) { P1 = i; //put data on output Port D_I =1; //D/I=HIGH : send data R_W =0; //R/W=LOW : Write E = 1; Delay(1); //enable pulse width >= 300ns E = 0; //Clock enable: falling edge } /**********************************************************/ void init() { E = 0; Delay(100); //Wait >40 msec after power is applied command(0x30); //command 0x30 = Wake up Delay(30); //must wait 5ms, busy flag not available command(0x30); //command 0x30 = Wake up #2 Delay(10); //must wait 160us, busy flag not available command(0x30); //command 0x30 = Wake up #3 Delay(10); //must wait 160us, busy flag not available command(0x38); //Function set: 8-bit/2-line command(0x10); //Set cursor command(0x0c); //Display ON; Cursor ON command(0x06); //Entry mode set } /**********************************************************/ [10] 4-bit Initialization: /**********************************************************/ void command(char i) { P1 = i; //put data on output Port D_I =0; //D/I=LOW : send instruction R_W =0; //R/W=LOW : Write Nybble(); //Send lower 4 bits i = i<<4; //Shift over by 4 bits P1 = i; //put data on output Port Nybble(); //Send upper 4 bits } /**********************************************************/ void write(char i) { P1 = i; //put data on output Port D_I =1; //D/I=HIGH : send data R_W =0; //R/W=LOW : Write Nybble(); //Clock lower 4 bits i = i<<4; //Shift over by 4 bits P1 = i; //put data on output Port Nybble(); //Clock upper 4 bits } /**********************************************************/ void Nybble() { E = 1; Delay(1); //enable pulse width >= 300ns E = 0; //Clock enable: falling edge } /**********************************************************/ void init() { P1 = 0; P3 = 0; Delay(100); //Wait >40 msec after power is applied P1 = 0x30; //put 0x30 on the output port Delay(30); //must wait 5ms, busy flag not available Nybble(); //command 0x30 = Wake up Delay(10); //must wait 160us, busy flag not available Nybble(); //command 0x30 = Wake up #2 Delay(10); //must wait 160us, busy flag not available Nybble(); //command 0x30 = Wake up #3 Delay(10); //can check busy flag now instead of delay P1= 0x20; //put 0x20 on the output port Nybble(); //Function set: 4-bit interface command(0x28); //Function set: 4-bit/2-line command(0x10); //Set cursor command(0x0F); //Display ON; Blinking cursor command(0x06); //Entry Mode set } /**********************************************************/ [11] Quality Information Test Item Content of Test High Temperature storage Endurance test applying the high storage temperature for a long time. Endurance test applying the low storage temperature for a long time. Endurance test applying the electric stress (voltage & current) and the high thermal stress for a long time. Endurance test applying the electric stress (voltage & current) and the low thermal stress for a long time. Endurance test applying the electric stress (voltage & current) and the high thermal with high humidity stress for a long time. Endurance test applying the electric stress (voltage & current) during a cycle of low and high thermal stress. Endurance test applying vibration to simulate transportation and use. Low Temperature storage High Temperature Operation Low Temperature Operation High Temperature / Humidity Operation Thermal Shock resistance Vibration test Static electricity test Test Condition Endurance test applying electric static discharge. 2 ‐30⁰C , 48hrs 1,2 +70⁰C 48hrs 2 ‐20⁰C , 48hrs 1,2 +40⁰C , 90% RH , 48hrs 1,2 0⁰C,30min ‐> 25⁰C,5min ‐> 50⁰C,30min = 1 cycle 10 cycles 10‐55Hz , 15mm amplitude. 60 sec in each of 3 directions X,Y,Z For 15 minutes VS=800V, RS=1.5kΩ, CS=100pF One time Note 1: No condensation to be observed. Note 2: Conducted after 4 hours of storage at 25⁰C, 0%RH. Note 3: Test performed on product itself, not inside a container. Precautions for using LCDs/LCMs See Precautions at www.newhavendisplay.com/specs/precautions.pdf Warranty Information See Terms and Conditions at http://www.newhavendisplay.com/index.php?main_page=terms [12] Note +80⁰C , 48hrs 3