Displaytech 64128KX LCD Module Displaytech Displaytech 64128KX LCD Module features a 50mm x 25mm viewing area and a 128 x 64 resolution. This FSTN (Film-Compensated Super Twisted Nematic) LCD module includes a Sitronix ST7565R Chip-On-Glass (COG) Controller and a Flexible Printed Circuit (FPC) interface. The ST7565R is a single-chip dot matrix LCD driver that can be connected directly to a microprocessor bus. 8-bit parallel or 4-line SPI display data sent from the microprocessor is stored in the internal display data RAM, and the chip generates a LCD drive signal independent of the microprocessor.