HT1609

HT1608L 2×20 Channel LCD Driver Features Operating voltage: 2.7V~5.2V LCD driving voltage: 3.0V~5.0V 40 internal LCD drivers available Bias voltage: static to 1/5 bias LCD driver with serial/parallel conversion function Common or segment driver output by selection Applications Electronic dictionaries Portable computers Remote controllers Calculators General Description The HT1608L is an LCD driver LSI with 40 output channels using CMOS technology. It is equipped with two sets of 20-bit bidirectional shift registers, 20-bit data latches, 20-bit LCD drivers, and logic control circuits. The HT1608 can convert serial data received from an LCD controller into parallel data and send out LCD driving waveforms to the LCD panel. The HT1608L is designed for general purpose LCD drivers. It can drive both static and dynamic drive LCDs. The chip can be applied to a common driver or a segment driver. Block Diagram 1 27th Aug ’98 HT1608L Pin Assignment 2 27th Aug ’98 HT1608L Pad Assignment Chip size: 101 × 115 (mil)2 * The IC substrate should be connected to VDD in the PCB layout artwork. 3 27th Aug ’98 HT1608L Pad Coordinates Pad No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 Unit: mil X –44.54 –44.54 –44.54 –44.54 –44.54 –44.54 –44.54 –44.54 –44.54 –44.54 –44.54 –44.54 –44.54 –44.54 –44.54 –44.54 –44.54 –44.54 –36.55 –29.92 –23.29 –16.66 –10.03 –3.40 3.23 9.86 16.49 23.12 29.75 36.38 Y 51.94 45.86 39.78 33.70 2...