The PSDC2-17E37-30323 is a part of Infineon's family of PSD8 Controller ICs, which are single-chip passive segment LCD controllers. They are intended to drive LCDs with a static drive scheme. This chip is designed to drive four segments with a maximum of 37 parallel outputs per segment. It has up to 17 programmable timing periods, as well as various other functions such as an RC oscillator, an internal power-on reset, and an auto power save mode. This chip is designed to reduce the external components count, and is available in a variety of packages.