BC4004A

BO LYM I N B C4004 A 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. LED B/L pins: 17/18, or A/K, or 13/14 7. Option: LED, EL B/L 8. Option: +3V single power supply 9. Option: negative voltage (built-in, external) Mechanical Data Item Standard Value Module Dimension 190.0 x 54.0 Viewing Area 147.0 x 29.5 Dot Size 0.5 x 0.55 Character Size 2.78 x 4.89 Pin Assignment Pin Symbol 1~8 DB7~0 9 E1 10 R/W 11 RS 12 Vo 13 Vss 14 Vdd 15 E2 16 NC/Vee 17 A 18 K Dimension Unit mm mm mm mm Electronic Characteristics Symbol Condition Typical Unit Value Input Voltage Vdd Vdd = +5V 5.0 V Supply Current Idd Vdd = +5V 3.0 mA LCD Driving 4.5 Vdd-Vo V 25 oC Voltage LED Forward 4.2 Vf V 25 oC Voltage LED Forward If 600 mA 25 oC Current EL Power Vel Vel=110Vac/400Hz V Voltage Item Function Data bus line H --> L enable signal ic1 H/L read/write register select contrast adjustment GND +5V(+3V option) H --> L enable signal ic2 NC/Negative voltage output Power supply for B/L (+) Power supply for B/L (GND)