DESCRIPTION

The µPD16680 is a driver which contains a RAM capable of full - dot LCD display. The single µPD16680 IC chip can operate a full - dot (up to 100 by 51 dots) LCD and pictographs (100 pictographs).

The µPD16680 can operate on single 3 V-power supply, is suitable for graphic pagers and cellular.

FEATURES

• LCD driver with a built-in display RAM

• Can operate on single 3 V-power supply

• Booster circuit incorporated : Switchable 3 or 4 folds

• Dot display RAM : 100 x 51 bits

• Pictographic display RAM : 100 bits

• Pictographic displays duty changeable : 1/53 or 1/40 duty

• Output for full-dot : 100 segments and 52 commons

• Data input based on serial & 4-bit / 8-bit parallel switch over

• String resister to output bias level incorporated

• Selectable LCD driving bias level (select from 1/8 bias, 1/7 bias, 1/6 bias)

• Oscillation circuit incorporated

• D/A converter incorporated (for LCD driving voltage adjustment)