PCF85134

The PCF85134 is designed as one kind of universal LCD drive device that generates the drive signals for any static or multiplexed LCD containing up to four backplanes and up to 160 segments. And PCF85134 is compatible with most microprocessors or microcontrollers of PCF85134 and communicates via a two-line bidirectional I2C-bus. Communication overheads are minimized by a display RAM with auto-incremental addressing, by hardware subaddressing and by display memory switching (static and duplex drive modes).

Features of the PCF85134 are:(1)Selectable backplane drive configuration: static, 2, 3, or 4 backplane multiplexing;(2)Silicon gate CMOS process;(3)Versatile blink modes;(4)Auto-incremented display data loading;(5)Display memory bank switching in static and duplex drive mode;(6)No external components required;(7)Compatible with any microprocessor or microcontroller;(8)Versatile blinking modes;(9)Low power consumption;(10)May be cascaded for large LCD applications (up to 5120 elements possible).

The absolute maximum ratings of the PCF85134 can be summarized as:(1)supply voltage: -0.5 to +6.5 V;(2)supply current: -50 to +50 mA;(3)LCD supply voltage: -0.5 to +9.0 V;(4)LCD supply current: -50 to +50 mA;(5)input voltage: -0.5 to +6.5 V;(6)input current: -10 to +10 mA;(7)output voltage: -0.5 to +9.0 V;(8)output current: -10 to +10 mA;(9)latch-up current: 200 mA;(10)storage temperature: -65 to +150 °C. If you want to know more information about it, please download the datasheet in www.seekic.com or www.chinaicmart.com .