BO LYMIN BC2004A20 Feature 1. COB with metal frame 2. 5x7 dots with cursor 3. Built-in controller KS0066 or equivalent 4. + 5V single power supply 5. 1/16 duty cycle 6. RS232 interface 7. Option: I2C interface 8. Option: LED,EL backlight Mechanical Data Item Standard Value Module Dimension 98.0 x 60.0 Viewing Area 77.0 x 25.2 Dot Size 0.55 x 0.55 Character Size 2.95 x 4.75 Unit mm mm mm mm Electronic Characteristics Pin Assignment RS232 Pin Symbol Function 2 Data Out Data out from LCM Data from user 3 Data In Ground 5 GND Pin Assignment Pin Symbol 1 5V 2 I2C clock 3 I2C data 4 GND Symbol Condition Typical Unit Value Input Voltage Vdd Vdd = +5V 5.0 V Supply Current Idd Vdd = +5V 20.0 mA LCD Driving 4.5 Vdd-Vo V 25 oC Voltage LED Forward 4.2 Vf V 25 oC Voltage LED Forward 280 mA If 25 oC Current EL Power Vel Vel=110Vac/400Hz V Voltage Item PORT2 Function 5V input for LCM I2C interface clock input I2C interface data input GND for LCM Dimension 98.0±0.5 96.8 77.0(VA) 70.4(AA) 2.5 55.0 93.0 0.6 4.75 0.6 0.55 16-Ø1.0 PTH 16 49.0 2.5 2.95 0.6 0.55 4-Ø2.5 PTH 4-Ø5.0 PAD 0.6 1 P2.54*15=38.06 2.0 60.0±0.5 39.3 25.2(VA) 20.8(AA) 10.3 17. 19. 10. 13. 10. 2.5 0.6 DOT SIZE SCALE 5/1 VIEW "AA"