BL12864K 1. OLED Display 128 x 64 dots 2. Built-in controller SSD1305 3. +2.4~ +3.5V single power supply 4. 1/64 duty cycle 5. Color: yellow 70.9 x 41.86 63.41 x 32.69 0.45 x 0.45 0.48 x 0.48 Pin Symbol 1 2 3 4~11 12 13 14 15 16 17 18 19 20 21 22 Vcc VCOMH IREF DB7~DB0 E(RD) R/W# D/C# RES# CS# BS2 BS1 VDD NC Vss Vss Function Positive OLED high voltage power supply The COM voltage reference pin The current reference input pin Data bus Data read Data write This is data/command control pin Hardware reset signal Chip select pin. Interface select pin Interface select pin Voltage power supply for logic No connection Ground Ground 30 Life Time 27 80 30,000 mA hrs