BG12864J 1.COB with metal frame 2.Built-in controller SBN0064G/6400G 3.+5V single power supply, with built-in negative voltage 4.1/64 duty cycle 5.LED edge B/L 6.LED B/L Pins: 23/24, or1/2 7.Option: Temperature compensation circuit 8.Option: External negative voltage 75.0 x 45.8 61.0 x 38.0 0.42 x 0.50 0.44 x 0.52 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15~22 23 24 Vss Vdd VO /RST D/I R/W E1 E2 CS1L CS1H CS2L CS2H VEE NC DB0~BD7 A K GND Power supply Operating voltage for LCD Reset signal Data/Instruction Data read/write Enable signal for IC2 (segment 1~64) Enable signal for IC3 (segment 65~128) Chip selection for IC2 (segment 1~64) Chip selection for IC3 (segment 65~128) Negative voltage output No connection Data bus Power supply for B/L ( + ) Power supply for B/L (GND) 3.8 9.0