NHD‐0208AZ‐FSW‐GBW‐33V3 Character Liquid Crystal Display Module NHD‐ 0208‐ AZ‐ F‐ SW‐ G‐ B‐ W‐ 33V3‐ Newhaven Display 2 Lines x 8 Characters Model Transflective Side White LED Backlight STN‐Gray 6:00 Optimal View Wide Temperature 3.3V LCD, 3.0V Backlight 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 Date 10/31/2011 8/8/2012 2 5/9/2014 Description 33V – improved liquid; VDD = 3.3V Mechancial Drawing Updated Electrical/Optical characteristics, Mechanical drawing 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 TJ ML L A I Mechanical Drawing 1 2 3 4 A Rev 2 1 E D I B F N O C Notes: D 1 1). 2). 3). 4). 5). 6). Date 3 1 VSS 2 VDD 3 V0 4 RS 5 R/W 6 E B C DB0~DB7 15 LED+ 16 LED- D Date 05/09/14 4 Gen. Tolerance Unit ±0.3mm mm 5 Model: NHD-0208AZ-FSW-GBW-33V3 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 PIN ASSIGNMENT 7~14 Driver Method: 1/16 duty, 1/5 bias, VDD 3.3V, VLCD 3.3V Display Type: STN-GRAY/Positive/Transflective/6:00 Optimal View Operating Temp: -20°C~70°C / Storage Temp: -30°C~80°C Backlight Type: Edge/White/Vled 3.0V/15mA Driver: ST7066U RoHS Compliant 2 6 Description T N 16 15 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 LED+ LED‐ MPU Power Supply Power Supply 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. Backlight Anode (+3.0V) Backlight Cathode (Ground) 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 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=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 ‐ ‐ ‐ ‐ ‐ Vled=3.0V ‐ ‐ 3.0 15 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 V mA Table of Commands Instruction code Instruction RS R/W DB7 Clear Display 0 0 0 0 0 0 0 0 0 1 Return Home 0 0 0 0 0 0 0 0 1 - Entry mode Set 0 0 0 0 0 0 0 1 I/D SH Display ON/ OFF control 0 0 0 0 0 0 1 D C Cursor or Display shift 0 0 0 0 0 1 S/C R/L - Function set 0 0 0 0 1 DL N F - 0 0 0 1 Set CGRAM Address Set DDRAM Address Read busy Flag and Address Write data To Address Read data From RAM 0 0 1 DB6 DB5 DB4 DB3 DB2 DB1 DB0 AC5 AC4 AC6 AC5 AC3 AC4 AC3 Write “20H” to DDRA and set DDRAM address to “00H” from AC 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 And blinking of entire display AC2 AC1 Set display (D), cursor (C), and 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: 8Bit/4-bit), numbers of display Line (N: =2-line/1-line) and, Display font type (F: 5x11/5x8) Set CGRAM address in AC0 address counter. AC2 AC1 Set DDRAM address in address AC0 counter. 0 1 BF AC6 AC5 AC4 AC3 AC2 1 0 D7 D6 D5 D4 D3 D2 D1 1 1 D7 D6 D5 D4 D3 D2 D1 D0 [6] AC1 Execution time (fosc= 270 KHZ 1.53ms 1.53ms 39us B Whether during internal Operation or not can be known AC0 By reading BF. The contents of Address counter can also be read. Write data into internal RAM D0 (DDRAM/CGRAM). Description Read data from internal RAM (DDRAM/CGRAM). 39us 39us 39us 39us 0us 43us 43us 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