The HT16C21 LCD Drivers SOP-20_300mil RoHS is a device manufactured by Holtek. It is a CMOS 8-bit micro-controller unit (MCU) with integrated LCD drivers for directly driving a variety of LCD displays with up to 14 common pins. It features 256 bytes of EEPROM data memory, a watchdog timer, a 6-source, 8-level interrupt controller, a low voltage reset circuit, and two 8-bit I/O ports. The LCD drivers are designed for general-purpose applications requiring low power consumption and ease of use. The device is RoHS compliant and comes in a 300 mil SOP-20 package.