The Lite-On LTV-817S-L is a CMOS type semiconductor that contains a programmable logic device. It is a 9-bit bipolar Programmable Array Logic (PAL). This device is used in industrial, automotive, and consumer applications to help control a wide range of functions such as data-acquisition, interfaces, logic gates, and timers. It has features such as low power consumption, high speed operation, and protection from electrostatic discharge.