Datasheet

ManualsBrandsDisplay Elektronik ManualsDisplaysDot Matrix LCD Display 5.55 mm 2 x 20

08.01.2018

DISPLAY Elektronik GmbH

DEM 20231 SYH-PY

LCD MODULE

Product Specification

Version

Summary of content (16 pages)

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DISPLAY Elektronik GmbH LCD MODULE DEM 20231 SYH-PY Product Specification Version: 4 08.01.
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GENERAL SPECIFICATION MODULE NO. : DEM 20231 SYH-PY CUSTOMER P/N VERSION NO. CHANGE DESCRIPTION DATE 0 Original Version 14.02.2001 1 Change LCD Driver IC 08.07.2008 2 Change PCB Description 24.11.2008 3 Add Version 02.08.2011 4 Change Maximum Parameter 08.01.2018 PREPARED BY: PS DATE: 08.01.2018 APPROVED BY: MH DATE: 08.01.
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DEM 20231 SYH-PY Product Specification CONTENTS 1. FUNCTIONS & FEATURES ----------------------------------------------------------------- 2 2. MECHANICAL SPECIFICATIONS -------------------------------------------------------- 2 3. BLOCK DIAGRAM --------------------------------------------------------------------------- 3 4. EXTERNAL DIMENSIONS----------------------------------------------------------------- 3 5.
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DEM 20231 SYH-PY Product Specification 1. FUNCTIONS & FEATURES MODULE NAME LCD TYPE REMARK DEM 20231 SYH-PY STN Yellow Green Transflective Positive Mode - l l l l l l l Viewing Direction Driving Scheme Power Supply Voltage VLCD Adjustable for Best Contrast Backlight Color Display Format Internal Memory l l CGROM Interface : 6 O'clock : 1/16 Duty Cycle, 1/5 Bias : 5.0 Volt (typ.) : 4.5 Volt (typ.
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DEM 20231 SYH-PY Product Specification 3. BLOCK DIAGRAM COM1~COM16 LCD Controller LSI ST7066U0A-B V0 VDD VSS LCD PANEL 2line*20characters SEG41~SEG100 DB0~DB7 E R/W RS SEG1~SEG40 SEGMENT DRIVER ST7063 Control signals LED-(K) LED+(A) BACKLIGHT 4.
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DEM 20231 SYH-PY Product Specification 5. PIN ASSIGNMENT Function Pin No.
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DEM 20231 SYH-PY Product Specification 6. PCB DRAWING AND DESCRIPTION Note: The part no. DEM20231 is printed on the PCB. DESCRIPTION: 6-1-1.The polarity of the pin 15 and the pin 16: LED Polarity 15 Pin 16 Pin J3,J5 J2, J4 Each open Each closed Anode Cathode Each closed Each open Cathode Anode 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.
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DEM 20231 SYH-PY Product Specification 7.
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DEM 20231 SYH-PY Product Specification 8. DISPLAY DATA RAM (DDRAM) 9. MAXIMUM ABSOLUTE POWER RATINGS (Ta=25°C) Item Symbol Standard value Unit Power Supply Voltage (1) VDD -0.3~+6.0 V Power Supply Voltage (2) VLCD VDD-10.0~VDD+0.3 V Input Voltage VIN -0.3~VDD+0.3 V Operating Temperature Topr -20~+70 ℃ Storage Temperature Tstg -25~+75 ℃ *Voltage greater than above may damage to the Circuit.
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DEM 20231 SYH-PY Product Specification 10. ELECTRICAL CHARACTERISTICS 10-1 DC Characteristics (VDD=4.5V~5.5V, Ta=-20~+70℃) Item Standard Value Symbol MIN TYP MAX Test Condition Unit Operating Voltage VDD 4.5 5 5.5 ------- V Supply Current IDD ---- 0.35 0.6 VDD=5V,fosc=270kHz mA VLCD 3.0 4.5 7.0 VDD-V5 (1/5 Bias) V LCD Driving Voltage 10-2 AC Characteristics (VDD=4.5V~5.
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DEM 20231 SYH-PY Product Specification 10-2-2 Read Mode (Reading Data from Module to MPU) Characteristic Symbol Min Type Max Unit Test PIN E Cycle Time tC 1200 --- --- ns E E Rise Time tR --- --- 25 ns E E Fall Time tF --- --- 25 ns E E Pulse width (High, Low) tW 140 --- --- ns E R/W and RS Set-up Time tSU 0 --- --- ns R/W,RS R/W and RS Hold Time tH 10 --- --- ns R/W,RS Data Output Delay Time tD --- --- 100 ns DB0~DB7 Data Hold Time tDH 10 --- --
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DEM 20231 SYH-PY Product Specification 11. CONTROL AND DISPLAY COMMAND Command RS Clear Display 0 R/W DB7 DB6 DB5 DB4 DB3 0 0 0 0 0 0 DB2 DB1 DB0 Execution time (fosc=270KHz) Remark 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.
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DEM 20231 SYH-PY Product Specification 12.
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DEM 20231 SYH-PY Product Specification 13. QUALITY DESCRIPTION DEFECT SPECIFICATION: Specific type-related items are covered in this sheet. a: Table for Cosmetic defects (Note: nc = not counted). Sizes and number of defects (Max. Qty) Segment Deformation (Notched segments L W Line shape W nc 100< d £ 200 5 Black or White Lines W Pinhole d £ 100 Black or White Spots L L L L W W L L Max. Max. defect size [mm] d or L Quantity.
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DEM 20231 SYH-PY Product Specification 14. MODULE ACCEPT QUALITY LEVEL (AQL). 14.1 AQL Standard Value: Critical Defect =0.1, Major Defect=0.65; Minor Defect =2.5. 14.2 Inspection Standard: ANSI Z-1.4 Table Normal Inspection Single Sampling Level II. 15. RELIABILITY TEST Operating life time: Longer than 50000 hours (at room temperature without direct irradiation of sunlight) Reliability characteristics shall meet following requirements.
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DEM 20231 SYH-PY Product Specification 16. LCD MODULES HANDLING PRECAUTIONS n Please remove the protection foil of polarizer before using. 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 come into contact with your skin or clothes promptly wash it off using soap and water.