NHD-0420AZ-FSW-GBW-33V3

NHD-0420AZ-FSW-GBW-33V3 Character Liquid Crystal Display Module NHD0420AZFSWGBW33V3- Newhaven Display 4 Lines x 20 Characters Model Transflective Side White LED Backlight STN Positive, Gray 6:00 Optimal View Wide Temp. 3.3V VDD, 3.0V Backlight RoHS Compliant Newhaven Display International, Inc. 2661 Galvin Ct. 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 10/31/11 10/25/16 3/29/19 Description 3.3V LC Implemented Mechanical Drawing, Electrical & Optical Char. Updated Mechanical Tolerance & Electrical Characteristics Updated Functions and Features • • • • • 4 lines x 20 characters Built-in controllers (ST7066U or equivalent) +3.3V Power Supply 1/16 duty, 1/5 bias RoHS compliant [2] Changed by SB SB SB 1 2 3 4 5 6 SYMBOL 7 8 REVISION DATE A A B B C C PIN ASSIGNMENT D 1 VSS 2 V DD 3 V0 4 RS 5 R/W 6 E 7~14 E F Notes: 1. Driver: 2. Voltage: 3. Display Mode: 4. Op�mal View: 5. Backlight: 6. Driver IC: 1 1/16 Duty, 1/5 Bias 3.3V VDD, 3.3V VLCD STN Pos�ve / Gray / Transflec�ve 6:00 White LED ST7066U 8/4-Bit MPU Interface 2 3 4 D DB0~DB7 15 LED+ 16 LED- E STANDARD TOLERANCE: (UNLESS OTHERWISE SPECIFIED) LINEAR: ±0.3mm 6 1.0 NHD-0420AZ-FSW-GBW-33V3 UNLESS OTHERWISE SPECIFIED: DRAWN BY: - DIMENSIONS ARE IN MILLIMETERS DRAWN DATE: - THIRD ANGLE PROJECTION 5 REVISION: DRAWING/PART NUMBER: S. Baxi 03/29/19 APPROVED BY: SIZE: A3 S. Baxi SCALE: APPROVED DATE: DO NOT SCALE DRAWING NS 03/29/19 SHEET 1 OF 1 THIS DRAWING IS SOLELY THE PROPERTY OF NEWHAVEN DISPLAY INTERNATIONAL, INC. THE INFORMATION IT CONTAINS IS NOT TO BE DISCLOSED, REPRODUCED OR COPIED IN WHOLE OR PART WITHOUT WRITTEN APPROVAL FROM NEWHAVEN DISPLAY. 7 8 F Pin Description and Wiring Diagram Pin No. 1 2 3 4 5 6 7-10 Symbol VSS VDD V0 RS R/W E DB0-DB3 External Connection Power Supply Power Supply 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) Supply Voltage 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. For 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: 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 Symbol TOP TST VDD IDD VLCD VIH VIL VOH VOL Condition Absolute Max Absolute Max VDD = 3.3V TOP = 25°C - Min. -20 -30 3.0 0.5 3.1 0.7*VDD VSS 0.75*VDD VSS Typ. 3.3 1.0 3.3 - Max. +70 +80 3.5 2.5 3.5 VDD 0.6 VDD 0.2*VDD Unit ⁰C ⁰C V mA V V V V V VLED ILED VLED = 3.0V 2.8 10 3.0 20 3.2 30 V mA Optical Characteristics Item Top Bottom Left Right Optimal Viewing Angles Symbol ϕY+ ϕYθXθX+ CR TR TF Contrast Ratio Response Time Rise Fall Condition CR ≥ 2 TOP = 25°C Min. 2 - Typ. 40 60 60 60 5 150 200 Max. 250 300 Unit ⁰ ⁰ ⁰ ⁰ ms ms Controller Information Built-in ST7066U Controller. Please download specification at http://www.newhavendisplay.com/app_notes/ST7066U.pdf DDRAM Address 1 00 40 14 54 2 01 41 15 55 3 02 42 16 56 4 03 43 17 57 5 04 44 18 58 6 7 8 05 06 07 45 46 47 19 1A 1B 59 5A 5B 9 10 11 12 13 14 15 16 17 08 09 0A 0B 0C 0D 0E 0F 10 48 49 4A 4B 4C 4D 4E 4F 50 1C 1D 1E 1F 20 21 22 23 24 5C 5D 5E 5F 60 61 62 63 64 [5] 18 11 51 25 65 19 12 52 26 66 20 13 53 27 67 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 B 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 0 0 1 Set CGRAM Address Set DDRAM Address Read busy Flag and Address Write data To Address Read data From RAM 0 1 BF 1 0 D7 1 1 D7 DB6 DB5 DB4 DB3 DB2 DB1 DB0 Write “20H” to DDRAM 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. Sets cursor move direction and specifies display shift. These parameters are performed during data write and read. D=1: Entire display on C=1: Cursor on B=1: Blinking cursor on Sets cursor moving and display shift control bit, and the direction without changing DDRAM data. DL: Interface data is 8/4 bits N: Number of lines is 2/1 F: Font size is 5x11/5x8 Execution time (fOSC= 270 KHZ 1.52ms 1.52ms 37µs 37µs 37µs 37µs AC3 AC2 AC1 AC0 Set CGRAM address in address counter 37µs AC4 AC3 AC2 AC1 AC0 Set DDRAM address in address counter. 37µs AC5 AC4 AC6 AC5 Description Whether during internal operation or not can be AC6 AC5 AC4 AC3 AC2 AC1 AC0 known by reading BF. The contents of address counter can also be read. Write data into internal RAM D6 D5 D4 D3 D2 D1 D0 (DDRAM/CGRAM). Read data from internal D6 D5 D4 D3 D2 D1 D0 RAM (DDRAM/CGRAM). [6] 0s 37µs 37µs 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 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 [12] Note +80⁰C , 48hrs 3