GENERAL DESCRIPTION

The PCF8881 is a low-power single chip TFT LCD driver with integrated source driver, gate driver, display RAM, timing control and DC-to-DC converter. The IC is a single chip solution with a minimum number of external components (capacitors).

FEATURES

• Low-power single chip Thin Film Transistor (TFT) LCD driver with integrated source driver, gate driver, display RAM, timing controller and DC-to-DC converter

• 528 outputs (132 × 132 RGB)

• 132 gate driver with up to 25 V output level

• Gate driver features:

– Integrated programmable voltage generator for 2 gate levels (max. 25 V)

– programmable scan direction for different glass routing

– special driving modes (interlace, dancing).

• Integrated voltage generator for source driver (4.8 V max., −4.8 V min.)

• On-chip 132 × 132 × 16-bit display data RAM for 65 kbyte colours

• On-chip oscillator and timing controller

• On-chip common electrode voltage generator

• 4 predefined grey-level curves according to 4 gamma values

• Programmable grey-level curve with 2 × 16 externally available tab pins

• Integrated temperature compensation

• Display features:

– Programmable frame refresh rate between 5 Hz and 85 Hz in 5 Hz steps

– User selectable line or frame inversion

– All pixels on/off modes

– 8, 256, 4 k, and 65 k colour modes from look-up table (LUT).

• Interfaces:

– 8-bit parallel interface (Intel 8080 and Motorola 68xx) with 16, 12 and 8-bpp resolution

– extended 16-bit parallel interface (Intel 8080 or Motorola 68xx)

– 3-line serial (9 bits per word).

• Digital power supply: 1.65 V to 1.95 V

• Analog power supply: 2.6 V to 2.9 V

• All driver settings are stored using a One Time Programming (OTP) block

• Slim chip layout, suitable for Chip-On-Glass (COG)

• Output staggered with 35 µm pitch.