Nearly any Liquid Crystal Display (LCD)1 with modest multiplex rates may be interfaced with the PCF85162 peripheral device. Any static or multiplexed LCD with up to four backplanes and up to 32 segments can have its driving signals generated by this device. For bigger LCD applications, it is simply cascaded. The two-line bidirectional I2 C-bus is used by the PCF85162 for communication with the majority of microcontrollers. A display RAM with auto-incremented addressing, hardware sub addressing, and display memory switching (static and duplex drive modes) all reduce communication overheads. Features LCD controller and driver on a single chip Selectable display bias configuration: static, 12, or 13; Internal LCD bias generation with voltage-follower buffers; Selectable backplane drive configuration: static, 2, 3, or 4 backplane multiplexing; 32 segment drives: Up to 8 14-segment alphanumeric characters, up to 16 7-segment numeric characters, and up to 128 components of any image For storing display data, use 32 bits of RAM. Flexible flashing modes; switching between display memory banks in static and duplex driving modes; and independent supply for LCD and logic voltage Broad power supply range: 1.8 to 5.5 volts
