NHD‐0208AZ‐RN‐YBW‐33V Character Liquid Crystal Display Module NHD‐ 0208‐ AZ‐ R‐ N‐ Y‐ B‐ W‐ 33V‐ Newhaven Display 2 Lines x 8 Characters Model Reflective No Backlight STN‐ Yellow/Green 6:00 Optimal View Wide Temperature 3.3V LCD 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 [email protected] [email protected] Document Revision History Revision 0 1 2 3 4 5 Date 10/31/2011 06/27/2013 11/19/2013 11/25/2013 4/24/2014 5/9/2014 Description 33V – improved liquid; VDD = 3.3V Mechanical and Timing characteristics updated Mechanical Drawing updated Mechanical drawing updated Mechanical drawing updated Electrical characteristics, Optical characteristics updated Functions and Features 2 lines x 8 characters Built‐in controller (ST7066U or equivalent) +3.3V power supply 1/16 duty, 1/5 bias RoHS compliant [2] Changed by SB KA ML AK ML ML L A I Mechanical Drawing 1 2 3 4 A Rev 2 1 16 15 O C Notes: D 1). 2). 3). 4). 5). 1 T N F N 3 Date PIN ASSIGNMENT 1 VSS 2 VDD 3 V0 4 RS 5 R/W 6 E 7~14 B DB0~DB7 15 NC 16 NC D Date 04/24/14 4 Gen. Tolerance Unit ±0.3mm mm 5 Model: NHD-0208AZ-RN-YBW-33V 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] A C Driver Method: 1/16 duty, 1/5 bias, VDD 3.3V, VLCD 3.3V Display Type: STN-Y/G/Positive/Reflective/6:00 Optimal View Operating Temp: -20°C~70°C / Storage Temp: -30°C~80°C Driver: ST7066U RoHS Compliant 2 6 Description E D I B C 5 Pin Description and Wiring Diagram Pin No. Symbol 1 2 3 4 5 6 7‐10 VSS VDD V0 RS R/W E DB0 – DB3 External Connection Power Supply Power Supply Adj Power Supply MPU MPU MPU MPU 11‐14 15 16 DB4 – DB7 NC NC MPU ‐ ‐ Function Description Ground Supply Voltage for logic (+3.3V) Power supply for contrast (approx. 0V) 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. No Connect No Connect Recommended LCD connector: 2x8 2.54mm pitch connector Backlight connector: ‐‐‐ Mates with: ‐‐‐ [4] 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 Symbol Top Tst VDD IDD VDD‐V0 Vih Vil Voh Vol Condition Absolute Max Absolute Max Ta=25°C, VDD=3.3V Ta=25°C Min. ‐20 ‐30 3.1 ‐ 3.1 0.7*VDD ‐0.3 0.75*VDD GND Typ. ‐ ‐ 3.3 1.5 3.3 ‐ ‐ ‐ ‐ Max. +70 +80 3.5 2.5 3.5 VDD 0.6 VDD 0.2*VDD Optical Characteristics Item Viewing Angle – Top Viewing Angle – Bottom Viewing Angle – Left Viewing Angle – Right Contrast Ratio Response Time (rise) Response Time (fall) Symbol Cr Tr Tf Condition Cr ≥ 2 ‐ ‐ Min. ‐ ‐ ‐ ‐ 2 ‐ ‐ Typ. 40 60 60 60 5 150 200 Max. ‐ ‐ ‐ ‐ ‐ 250 300 Controller Information Built‐in ST7066U controller. Please download specification at http://www.newhavendisplay.com/app_notes/ST7066U.pdf DDRAM Address 1 2 3 4 5 6 7 8 00 01 02 03 04 05 06 07 40 41 42 43 44 45 46 47 [5] Unit ⁰ ⁰ ⁰ ⁰ ‐ ms ms Unit ⁰C ⁰C V mA V V V V V Table of Commands [6] Timing Characteristics Writing data from MPU to ST7066U [7] Reading data from ST7066U to MPU [8] Built‐in Font 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