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)