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.