The STC90C514AD with STC LQFP-44_10x10x08P RoHS is an 8-bit single-chip microcontroller, manufactured by STC. It has a 16K ROM, 256 bytes of RAM, and 2K of EEPROM. The device features an integrated data bus interface that allows the user to control peripheral components such as LCD displays and keyboards. It also has an integrated timer, serial port, and edge I/O control circuitry. This microcontroller is RoHS compliant and is packaged in a lead-free LQFP-44_10x10x08P package. It is suitable for a wide range of applications, such as home appliances, medical instruments, and automotive systems.