GENERAL DESCRIPTION

The PCF8811 is a low power CMOS LCD controller driver, designed to drive a graphic display of 80 rows and 128 columns or a graphic display of 79 rows and 128 columns and a icon row of 128 symbols. All necessary

FEATURES

? Single-chip LCD controller/driver

? 80 row and 128 column outputs

? Display data RAM 80×128 bits

? 128 icons (row 80 can be used for icons in extended command set and when icon rows are enabled)

? An 8-bit parallel interface, 3 or 4-line Serial Peripheral Interface (SPI) and high-speed I2C-bus

? On-chip:

– Configurable voltage multiplier generating VLCD;

external VLCDalso possible

– Linear temperature compensation of VLCD;

8 programmable temperature coefficients (extended command set); one fixed temperature coefficient which default can be set by OTP programming (basic command set)

– Generation of intermediate LCD bias voltage

– Oscillator requires no external components; external clock input also possible.

? OTP calibration for VLCDand accurate frame frequency

? External reset input pin

? CMOS compatible inputs

? Mux rate: 1 : 16 to 1 : 80 in steps of 8 when no icon row is used, with the icon row steps of 16 can be used

? Logic supply voltage range VDD1?VSS:

– 1.7 V to 3.3 V.

? High voltage generator supply voltage range VDD2,VDD3?VSS:

– 1.8 V to 3.3 V.

? Display supply voltage range VLCD?VSS:

– 3Vto9V.

? Low power consumption; suitable for battery operated systems

? Programmable bottom row pads mirroring; for compatibility with both Tape Carrier Packages (TCP) and Chip On Glass (COG) applications (extended command set)

? Status read which allows for chip recognition and content checking of some registers

? Start address line which allows, for instance, the scrolling of the displayed image

? Programmable display RAM pointers for variable display sizes

? Slim chip layout, suited for COG applications

? Temperature range: Tamb=?40°C to +85°C.

APPLICATIONS

? Telecom equipment

? Portable instruments

? Point of sale terminals.