80 X 128 Pixels Matrix LCD Driver

PCF8811

The PCF8811 is a low-power CMOS LCD controller and driver. It is designed to drive a graphic display of 80 rows and 128 columns or of 79 rows, 128 columns, and an icon row of 128 symbols. All necessary functions for the display are provided in a single chip, including on-chip generation of the LCD supply and bias voltages. Therefore only a minimum of external components are required and power consumption is low. The PCF8811 can interface microcontrollers via a parallel bus, serial bus, or I²C-bus interface.

Product Details

Select a section:

Block Diagram

Block diagram: PCF8811MU, PCF8811U

Get diagram PDF

Features

  • Single-chip LCD controller and driver
  • 80 row and 128 column outputs
  • Display data RAM 80 × 128 bit
  • 128 icons (in extended command set row 79 can be configured for displaying icons)
  • Low power consumption; suitable for battery operated systems
  • Interfaces:
    • 8-bit parallel
    • 3- or 4-line Serial Peripheral Interface (SPI)
    • High-speed I²C-bus
  • Configurable voltage multiplier generating LCD supply voltage VLCD; an external VLCD is also possible
  • Linear temperature compensation of VLCD:
    • 8 programmable temperature coefficients (extended command set)
    • one fixed temperature coefficient which can be set as default by OTP programming (basic command set)
  • Generation of intermediate LCD bias voltage
  • Oscillator requires no external components
  • OTP calibration for VLCD and accurate frame frequency
  • External reset input pin
  • External clock input possible
  • Multiplex rate 1:16 to 1:80 selectable
    • in steps of 8 when icon row is not used
    • in steps of 16 when the icon row is used
  • Logic supply voltage range VDD1 to VSS:
    • 1.7 V to 3.3 V
  • High-voltage multiplier supply voltage range VDD2, VDD3 to VSS:
    • 1.8 V to 3.3 V
  • Display supply voltage range VLCD to VSS:
    • 3 V to 9 V
  • Programmable bottom row pins 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
  • CMOS compatible inputs

Target Applications

  • Automotive displays
  • Telecommunication equipment
  • Portable instruments
  • Point-of-sale terminals
  • Consumer healthcare devices

Design Resources

Select a section:

Engineering Services

2 engineering services

To find a complete list of our partners that support this product, please see our Partner Marketplace.

Support

What do you need help with?

Search