BG128128A

BO LYMIN B G128128A Feature 1. SMT PCB with metal frame 2. Built-in controller LC7981 3. 1/128 duty cycle 4. +5V single power supply 5. Option: LED, EL B/L 6. Option: negative voltage Mechanical Data Item Standard Value Module Dimension 72.4 x 70.0 Viewing Area 49.0 x 49.0 Dot Size 0.32 x 0.32 Dot Pitch 0.35 x 0.35 Pin Assignment Pin Symbol 1~8 9 10 11 12 13 14 15 16 17~18 19 20 DB0-7 RS R/W E /CS /RST Vo Vdd Vss NC A NC 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 5.0 mA LCD Driving 17.6 V Vdd-Vo 25 oC Voltage LED Forward 4.2 Vf V 25 oC Voltage LED Forward If 320 mA 25 oC Current Item Function Data bus line Data/Instruction select Data read/write Enable signal Chip select Reset signal Contrast adjustment Power supply(+5V) Power supply(GND) No connection Power supply for B/L + Power supply for B/L - Dimension 3.6 65.2 0.3 49.0 0.2 2.5 44 77 20- Ø1.0 4- Ø 2.5 10.0[led] 5.0[el/ref] 1.6 70.0 0.5 65.0 0.3 A 44.77 49.0 0.2 59.5 0.3 DETAIL A 12 . 10 15.0[led] 10.0[el/ref] 72.4 0.5 5.25 67.4 0.3