The IA186ES-PQF100I-R-03 is a microcontroller unit from Innovasic. It is a member of the company's IA186ES family of single-chip microcontroller units and is based on an embedded version of Intel's 80C186 microprocessor. The IA186ES-PQF100I-R-03 is optimised for performance and provides a wide range of features, including 16 Mbytes of Flash program memory, 1 Mbyte of on-chip RAM, a 10/100 Mbps Ethernet controller, two serial ports, two I2C ports, four pulse-width modulation (PWM) outputs, and two counter timer modules. It also supports a number of integrated peripherals, such as three interrupt controllers, a watchdog timer, and four dedicated real-time clocks. Finally, the IA186ES-PQF100I-R-03 is available in a 144-pin PQFP package to ensure reliable operation in harsh industrial environments.