PCF85133

The PCF85133 is designed as one kind of universal LCD drive device that generates the drive signals of PCF85133 for any static or multiplexed LCD containing up to four backplanes and up to 160 segments. And PCF85133 is compatible with most microprocessors or microcontrollers 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 PCF85133 are:(1)Selectable backplane drive configuration: static, 2, 3, or 4 backplane multiplexing;(2)Single-chip LCD controller and driver;(3)Selectable frame frequency: 82 Hz or 110 Hz;(4)Auto-incremental display data loading across device subaddress boundaries;(5)80 x 4-bit RAM for display data storage;(6)Wide power supply range: from 1.8 V to 5.5 V;(7)Display memory bank switching in static and duplex drive modes;(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 PCF85133 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 .