PCF8881 Ver la hoja de datos (PDF) - Philips Electronics

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PCF8881

132 × 132 RGB single chip TFT driver with DC-to-DC converter

Philips Electronics 

Philips Semiconductors

132 × 132 RGB single chip TFT driver

with DC-to-DC converter

Objective specification

PCF8881

1 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).

The PCF8881 has 396 source and 132 gate outputs

(132 × RGB Sources × 132 Gates). The integrated display

RAM has a capacity of 279 kbits

(132 Sources × 16 bits × 132 Gates). The PCF8881 can

drive a 132 RGB column × 132 line LCD panel with

65 kbyte colours when using the internal RAM.

2 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.

3 ORDERING INFORMATION

TYPE NUMBER

PCF8881U/2DA/1

NAME

−

PACKAGE

DESCRIPTION

chip with bumps in tray

VERSION

−

2004 Aug 10

3

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