NHD‐0440WH‐ATMI‐JT# Character Liquid Crystal Display Module NHD‐ 0440‐ WH‐ A‐ T‐ M‐ I‐ JT#‐ Newhaven Display 4 lines x 40 characters Display Type: Character Model White LED Backlight STN‐ Blue (Negative) Transmissive, 6:00 view, Wide Temp. (‐20°C ~+70°C) English and Japanese standard font 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] [1] Document Revision History Revision 0 1 2 3 4 5 Date 10/21/2008 11/3/2009 11/16/2009 12/16/2009 1/4/2011 5/6/2011 Description Initial Release User Guide Reformat Updated Block diagram and initialization code Updated Backlight Supply Current Update 2nd controller information Electrical characteristics updated Functions and Features • • • • • 4 lines x 40 characters 2 Built‐in controllers (ST7066U) +5.0V Power Supply 1/16 duty, 1/5 bias RoHS compliant [2] Changed by ‐ MC MC MC JT AK Mechanical Drawing 2.5 13.6 MAX 9.0 21.0 7.0 95.0 3.5 4-3.5 PTH 4-6.5 PAD 183.0 2.54 2.5 2.78 4-1.0 PTH 1.6 LED B/L 0.75 0.57 0.5 PIN DETAIL 1.2 18-1.0 PTH 18-1.8 PAD 4.89 0.62 0.55 18.11 20.32 54.0 0.5 23.5 24.78 140.45(AA) 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 47.0 15.42 21.5 166.3 147.0(VA) 16.5 12.25 23.16(AA) 6.05 41.9 29.5(VA) 11.85 3.5 190.0 0.5 The non-specified tolerance of dimension is DOT SIZE SCALE 5/1 DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0 E1 R/W RS Vo Vss Vdd E2 NC/Vee LED + LED - 0.3mm. Newhaven Display NHD-0440WH-ATMI-JT# Pin Description and Wiring Diagram Pin No. Symbol 1‐4 5‐8 DB7‐DB4 DB3‐DB0 9 10 11 12 13 14 15 16 17 18 E1 R/W RS V0 Vss VDD E2 NC LED+ LED‐ External Connection MPU MPU MPU MPU MPU Power Supply Power Supply Power Supply MPU ‐ Power Supply Power Supply Function Description Four high order bi‐directional three‐state data bus lines. Four low order bi‐directional three‐state data bus lines. These four are not used during 4‐bit operation. Operation enable signal. Falling edge triggered for top 2 lines. Read/Write select signal, R/W=1: Read R/W:=0: Write Register select signal. RS=0: Command, RS=1: Data Power supply for contrast (approx. 0.5V) Ground Supply voltage for logic (+5.0V) Operation enable signal. Falling edge triggered for bottom 2 lines. No Connect Power supply for LED backlight (+3.5V) Ground for backlight Recommended LCD connector: 2.54mm pitch pins 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 Backlight Lifetime Symbol Top Tst VDD IDD VDD‐V0 Vih Vil Voh Vol Vled Iled ‐ Condition Absolute Max Absolute Max Ta=25°C, VDD=5.0V Ta=25°C Min. ‐20 ‐30 4.75 ‐ ‐ 0.7 VDD 0 3.9 ‐ Typ. ‐ ‐ 5.0 1.2 4.5 ‐ ‐ ‐ ‐ ‐ Vled=3.5V ‐ ‐ 50 ‐ 3.5 80 50,000 Max. +70 +80 5.25 ‐ ‐ VDD 0.6 ‐ 0.4 ‐ 100 ‐ Unit ⁰C ⁰C V mA V V V V V V mA Hrs 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 ⁰ ⁰ ⁰ ⁰ ‐ ms ms Controller Information Built‐in ST7066U Download specification at http://www.newhavendisplay.com/app_notes/ST7066U.pdf Display character address code DDRAM address 1 00 40 00 40 2 01 41 01 41 3 02 42 02 42 4 03 43 03 43 5 04 44 04 44 ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ [5] ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ 36 23 63 23 63 37 24 64 24 64 38 25 65 25 65 Display position 39 40 26 27 66 67 26 27 66 67 DDRAM address Command Table [6] Built‐in Font Table [7] Example Initialization Program /************************************************************************/ void command1(char i) //Top half of the display { P1 = i; W = 0; RS = 0; E1 = 1; delay(2); E1 = 0; } void command2(char i) //Bottom half of the display { P1 = i; W = 0; RS = 0; E2 = 1; delay(2); E2 = 0; } /************************************************************************/ void writedata1(char i) //Top half of the display { P1 = i; W = 0; RS = 1; E1 = 1; delay(2); E1 = 0; } void writedata2(char i) //Bottom half of the display { [8] P1 = i; W = 0; RS = 1; E2 = 1; delay(2); E2 = 0; } /************************************************************************/ void init_LCD() { delay(15); command1(0x30); //Wake up command2(0x30); delay(5); command1(0x30); //Wake up command2(0x30); delay(5); command1(0x30); //Wake up command2(0x30); delay(5); command1(0x38); //Function Set = 8bit mode; 2‐line; 5x8 command2(0x38); command1(0x08); //Turn off display command2(0x08); command1(0x01); //Clear display command2(0x01); command1(0x06); //Entry mode cursor increment command2(0x06); command1(0x0c); //Turn on display; no cursor command2(0x0c); } /************************************************************************/ [9] 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 and Terms & Conditions http://www.newhavendisplay.com/index.php?main_page=terms [10] Note +80⁰C , 48hrs 3