DISPLAY Elektronik GmbH LCD MODULE DEM 20487 SYH-LY Product Specification Version : 3.1.3 19.01.
GENERAL SPECIFICATION MODULE NO. : DEM 20487 SYH-LY VERSION NO. CHANGE DESCRIPTION DATE 0 ORIGINAL VERSION 12.02.2001 1 CHANGING EXTERNAL 21.02.2001 2 CHANGE BACKLIGHT CURRENT 30.03.2001 3 PCB CHANGED 12.10.2001 3.1.1 CHANGE IC CHANGE MAXIMUM PARAMETER CORRECT PIN ASSIGNMENT 31.01.2008 3.1.2 3.1.3 08.01.2018 19.01.2018 PREPARED BY: PS DATE: 19.01.2018 APPROVED BY: MH DATE: 19.01.
DEM 20487 SYH-LY Product Specification CONTENTS 1. FUNCTIONS & FEATURES ----------------------------------------------------------------- 2 2. MECHANICAL SPECIFICATIONS -------------------------------------------------------- 2 3. BLOCK DIAGRAM --------------------------------------------------------------------------- 3 4. EXTERNAL DIMENSIONS----------------------------------------------------------------- 3 5.
DEM 20487 SYH-LY Product Specification 1. FUNCTIONS & FEATURES MODULE DEM 20487 SYH-LY l l l l l l l l l Viewing Direction Driving Scheme Power Supply Voltage Backlight Color VLCD Display contents Operating Temperature Storage Temperature Internal Memory l Interface LCD TYPE STN Yellow Green Transflective Positive Mode : 6 O’clock : 1/16 Duty Cycle, 1/5 Bias : 5.0 Volt (typ.) : LED, Lightbox, Yellow Green : 4.5 Volt (typ.
DEM 20487 SYH-LY Product Specification 3. BLOCK DIAGRAM LCD PANEL R/W RS V0 VDD VSS LCD Controller LSI ST7066U0A-B SEG1~SEG40 Control signals A K SEGMENT DRIVER ST7063 SEG121~SEG2 E 4 Line x 20 Characters SEG41~SEG12 COM1~COM16 DB0~DB7 SEGMENT DRIVER ST7063 BACKLIGHT 4. EXTERNAL DIMENSIONS Version: 3.1.
DEM 20487 SYH-LY Product Specification 5. PIN ASSIGNMENT Pin No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Symbol VSS VDD V0 RS R/W E DB0 DB1 DB2 DB3 DB4 DB5 DB6 DB7 LED-(K) LED+(A) Function Ground terminal of module Power supply of module 5V Power Supply for LCD Register Select RS=0: Instruction Register; RS=1: Data Register Read / Write R/W=1: Read; R/W=0: Write Enable Bi-directional data bus, data transfer is performed once, thru DB0~DB7, in the case of interface data.
DEM 20487 SYH-LY Product Specification DESCRIPTION: 6-1-1 The polarity of the pin 15 and the pin 16 LED Polarity(1) 15 Pin 16Pin Anode Cathode J3=J5=open J2=J4=closed LED Polarity(2) 15 Pin 16 Pin Cathode Anode J3=J5= closed J2=J4= open Note: In application module, J2=J4= open and J3=J5=closed 6-1-2 The metal-bezel should be on ground when the J1 is solder-Bridge. Note: In application module, J1=closed 6-1-3 The LED resistor should be bridged when the J6 is solder-Bridge.
DEM 20487 SYH-LY Product Specification 7. BACKLIGHT & SWITCH (Ta=-20~70°C) CONDITIONS 入 IMPORTANT NOTE: The LED-current of the module is limited to ~ 230mA due to the LED-resistors on board. Version: 3.1.
DEM 20487 SYH-LY Product Specification 8. DISPLAY DATA RAM (DDRAM) 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 FIRST 00 LINE 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F 10 11 12 13 SECOND LINE 40 41 42 43 44 45 46 47 48 49 4A 4B 4C 4D 4E 4F 50 51 52 53 THIRDD LINE 14 15 16 17 18 19 1A 1B 1C 1D 1E 1F 20 21 22 23 24 25 26 27 FOURTH LINE 54 55 56 57 58 59 5A 5B 5C 5D 5E 5F 60 61 62 63 64 65 66 67 9.
DEM 20487 SYH-LY Product Specification 10-2. AC Characteristics (VDD=4.5V~5.
DEM 20487 SYH-LY Product Specification 10-2-2 Read Mode (Reading Data from Module to MPU) Characteristic E Cycle Time Symbol tC Min 1200 Type --- Max --- Unit ns Test PIN E E Rise Time tR tF --- --- 25 ns E --- --- 25 ns E E Fall Time E Pulse width (High, Low) R/W and RS Set-up Time tW 140 --- --- ns E tSU 0 --- --- ns R/W,RS R/W and RS Hold Time tH 10 --- --- ns R/W,RS Data Setup Time tD --- --- ns DB0~DB7 Data Hold Time tDH 10 --- 100 --- ns DB0~DB7 R
DEM 20487 SYH-LY Product Specification 11. CONTROL AND DISPLAY COMMAND Command RS R/W DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0 Execution time (fosc=270KHz) Remark Clear Display 0 0 0 0 0 0 0 0 0 1 1.52ms Write”20H” to DDRAM. And set DDRAM address to “00H” from AC Return home 0 0 0 0 0 0 0 0 1 x 1.52ms Set DDRAM address to “00H” from AC and return cursor to its original position if shifted. The contents of DDRAM are not changed.
DEM 20487 SYH-LY Product Specification 12. STANDARD CHARACTER PATTERN (ST7066U-0A-B) U p p e r(4 b it) Lo w e rr(4 b it) 0000 0001 0010 0011 0100 0101 0110 0111 1000 1001 10010 1011 1100 1101 1110 1111 CG RAM 0000 (1 ) 0001 (2 ) 0010 (3 ) 0011 (4 ) 0100 (5 ) 0101 (6 ) 0110 (7 ) 0111 (8 ) 1000 (1 ) 1001 (2 ) 1010 (3 ) 1011 1100 1101 1110 1111 Version: 3.1.
DEM 20487 SYH-LY Product Specification 13. LCD MODULES HANDLING PRECAUTIONS n The display panel is made of glass. Do not subject it to a mechanical shock by dropping it from a high place, etc. n If the display panel is damaged and the liquid crystal substance inside it leaks out, do not get any in your mouth. If the substance comes into contact with your skin or clothes promptly wash it off using soap and water.
