GENERAL DESCRIPTION

The PCF8549 is a low power CMOS LCD controller driver,designed to drive a graphic display of 65 rows and 102 columns. All necessary functions for the display are provided in a single chip, including on-chip generation of LCD supply and bias voltages, resulting in a minimum of external components and low power consumption. The PCF8549 interfaces to most microcontrollers via an

I2C interface.

FEATURES

? Single chip LCD controller/driver

? 65 row and 102 column outputs

? Display data RAM 65×102 bits

? On-chip:

– Generation of LCD supply voltage

– Generation of intermediate LCD bias voltages

– Oscillator requires no external components (external clock also possible)

? 400 kHz Fast I2C Interface

? CMOS compatible inputs

? Mux rate: 65

? Logic supply voltage range VDD1?VSS: 1.5 to 6 V

? Voltage generator voltage range VDD2/2_HV?VSS: 2.4 to 5 V

? Display supply voltage range VLCD?VSS: 7.0 to 16 V

? Low power consumption, suitable for battery operated systems

? Temperature compensation of VLCD

? Interlacing for better display quality

? Slim chip layout, suited for chip-on-glass applications.