HDM20416L 20 Character x 4 Lines, LED Backlight Dimensional Drawing 2.5 93.0 2.5 7.5 16-φ1.0 2.54x15=38.1 2.95 0.6 16 1 0.55 7.8 17.1 14.9 2.5 0.55 39.4 60.0 20.8 25.2 A 55.0 0.05 K 4.75 0.05 76.0 70.4 97.0 98.0 4-φ2.5 9.5 10.5 (-1) 1.6 11.3 12.5 MAX 15.0 MAX (-1) 8.5 Dimension tolerance: +/-0.3mm Features Character Format .................................. 5x7 Dots with Cursor Backlight.............................................................................LED Options.......Gray STN/Yellow STN, 12 o’Clock/6 o’Clock View Normal/Extended Temperature Normal/Negative Displays 0.6 Block Diagram D0 - D7 DRIVER 40 LCD E R/W RS VL VDD V SS Physical Data Module Size ...................................98.0W x 60.0H x 12.5T mm Thick Version..............98.0W x 60.0H x 15.0T mm Viewing Area Size.......................................76.0W x 25.2H mm Weight.................................................................................60g 16 CONTROLLER COM HD44780 or K A 20 LCD PANEL 16 40 EQUIVALENT 4 DRIVER 40 40 DRIVER DRIVER LED BACKLIGHT RESISTOR SUPPLIED BY USER Absolute Maximum Ratings PARAMETER SYMBOL MIN MAX UNIT SUPPLY VOLTAGE V DD-VSS 0 7.0 V SUPPLY VOLTAGE FOR LCD V DD-VL 0 13.5 V INPUT VOLTAGE V IN VSS VDD V OPERATING TEMPERATURE T OP 0 50 °C STORAGE TEMPERATURE T STG -20 70 °C Pin Connections PIN NO. SYMBOL LEVEL FUNCTION 1 VSS - 0V LED FORWARD CURRENT IF - 300 mA LED REVERSE VOLTAGE VR - 8 V 2 VDD - 5V mW 3 VL - - 4 RS H/L H: Data input L: Instruction data input 5 R/W H/L H: Data read L: Data write Enable signal LED POWER CONSUMPTION PD 1350 - Electrical Characteristics (VDD=5.0±0.25V 25°C) PARAMETER Power supply CONDITION MIN TYP MAX UNIT 6 E H,H→L INPUT HIGH VOLTAGE VIH - 2.2 - - V 7 D0 H/L INPUT LOW VOLTAGE VIL - - - 0.6 V 8 D1 H/L OUTPUT HIGH VOLTAGE VOH I OH=0.2mA 2.4 - - V 9 D2 H/L OUTPUT LOW VOLTAGE VOL I OL=1.2mA - - 0.4 V 10 D3 H/L POWER SUPPLY CURRENT I DD VDD =5.0V - 1.5 2.5 mA 11 D4 H/L POWER SUPPLY FOR LCD VDD -VL T A=25°C 4.3 - 4.7 V 12 D5 H/L 13 D6 H/L LED FORWARD VOLTAGE VF I F=110mA 3.9 4.1 4.5 V 14 D7 H/L BRIGHTNESS L I F=110mA 30 45 - NIT 15 A - Anode for LED backlight 16 K - Cathode for LED backlight DRIVE METHOD SYM 1/16 Duty Page 81 20 Data bus 4