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.