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| NHD-0220DZ-FL-GBW Character Liquid Crystal Display Module NHD0220DZFLGBWNewhaven Display 2 lines x 20 characters Model Transflective Yellow/Green LED Backlight STN-Gray 6:00 view Wide Temperature (-20C~+70C) RoHS Compliant Newhaven Display International, Inc. 2511 Technology Drive, Suite 101 Elgin IL, 60124 Ph: 847-844-8795 Fax: 847-844-8796 www.newhavendisplay.com nhtech@newhavendisplay.com nhsales@newhavendisplay.com Document Revision History Revision 0 1 2 Date 4/2/2009 1/29/2010 6/3/2010 Description Initial Release User Guide Reformat Character code updated Changed by BE BE Functions and Features * * * * * 2 lines x 20 characters Built-in controller (SPLC780D or equivalent) +5.0V Power Supply 1/16 duty, 1/5 bias RoHS compliant Mechanical Drawing Pin Description and Wiring Diagram Pin No. 1 2 3 4 5 6 7-10 11-14 15 16 Symbol VSS VDD V0 RS R/W E DB0 - DB3 DB4 - DB7 LED+ LEDExternal Connection Power Supply Power Supply Adj Power Supply MPU MPU MPU MPU MPU Power Supply Power Supply Function Description Ground Supply Voltage for logic (+5.0V) Power supply for contrast (approx. 0.4V) Register select signal. RS=0: Command, RS=1: Data Read/Write select signal, R/W=1: Read R/W: =0: Write Operation enable signal. Falling edge triggered. Four low order bi-directional three-state data bus lines. These four are not used during 4-bit operation. Four high order bi-directional three-state data bus lines. Power supply for LED Backlight (+5.0V via on-board resistor) Ground for Backlight Recommended LCD connector: 2.54mm pitch pins Backlight connector: --Mates with: --- Electrical Characteristics Item Operating Temperature Range Storage Temperature Range Supply Voltage Supply Current Supply for LCD (contrast) "H" Level input "L" Level input "H" Level output "L" Level output Backlight Supply Voltage Backlight Supply Current Symbol Top Tst VDD IDD VDD-V0 Vih Vil Voh Vol Vled Iled Condition Absolute Max Absolute Max Ta=25C, VDD=5.0V Ta=25C Min. -20 -30 4.7 2.2 0 2.4 Typ. 5.0 1.5 4.6 5.0 120 Max. +70 +80 5.5 2.5 VDD 0.6 0.4 Unit C C V mA V V V V V V mA Vled=5.0V Optical Characteristics Item Viewing Angle - Vertical (top) Viewing Angle - Vertical (bottom) Viewing Angle - Horizontal (left) Viewing Angle - Horizontal (right) Contrast Ratio Response Time (rise) Response Time (fall) Symbol AV AV AH AH Cr Tr Tf Condition Cr 2 Cr 2 Cr 2 Cr 2 Min. Typ. 25 70 30 30 2 120 120 Max. 150 150 Unit ms ms Controller Information Built-in SPLC780D. Download specification at http://www.newhavendisplay.com/app_notes/SPLC780D.pdf Table of Commands 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 00 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F 10 11 12 13 40 41 42 43 44 45 46 47 48 49 4A 4B 4C 4D 4E 4F 50 51 52 53 Timing Characteristics Built-in Font Table 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=LOW : 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 >15 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 } /**********************************************************/ 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 >15 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 } /**********************************************************/ Quality Information Test Item High Temperature storage Low Temperature storage High Temperature Operation Low Temperature Operation High Temperature / Humidity Operation Thermal Shock resistance Content of Test 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. Test Condition +80C , 48hrs -30C , 48hrs +70C 48hrs Note 2 1,2 2 -20C , 48hrs 1,2 +40C , 90% RH , 48hrs 1,2 Vibration test Static electricity test Endurance test applying electric static discharge. 0C,30min -> 25C,5min -> 50C,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=1.5k, CS=100pF One time 3 Note 1: No condensation to be observed. Note 2: Conducted after 4 hours of storage at 25C, 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 and Terms & Conditions http://www.newhavendisplay.com/index.php?main_page=terms |
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