BO LYMIN BG12232D1 Feature 1. COB with metal frame 2. built-in oscillation 3. Built-in controller SED1520Doa 4. 1/32 duty cycle 5. + 5V single power supply 6. Option: +3V single power supply 7. Option: LED, EL B/L Mechanical Data Item Standard Value Module Dimension 80.0 x 36.0 Viewing Area 60.0 x 18.0 Dot Size 0.4 x 0.45 Dot Pitch 0.44 x 0.49 Pin Assignment Pin Symbol 1 2 3 4 5 6 7 8 9 10~17 18 Vss Vdd Vo Ao E1 E2 NC NC R/W DB0~7 /RES 19 A/Vee 20 K Dimension Unit mm mm mm mm Function GND + 5V(+3V option) Contrast adjustment H --> Data L --> Instruction Data latch for chip 1 Data latch for chip2 H:read , L:write Data bus line Reset signal Power supply for B/L (+)/ Negative voltage output Power supply for B/L (GND) Electronic Characteristics Symbol Condition Typical Unit Value Input Voltage Vdd Vdd = +5V 5.0 V Supply Current Idd Vdd = +5V 1.0 mA LCD Driving 4.5 Vdd-Vo V 25 oC Voltage LED Forward 4.2 Vf V 25 oC Voltage LED Forward If 120 mA 25 oC Current EL Power Vel Vel=110Vac/400Hz V Voltage Item