The XC61FN2542MR-G is a 5-pin microcontrollers, with supervisory circuits, developed and manufactured by Torex Semiconductor. It features 1.8-5.5V operating voltage, 16MHz clock frequency, low power consumption, and 512 bytes ROM program memory. The XC61FN2542MR-G is designed with dedicated supervisory circuits, including a power-on reset generator, a watchdog timer, and a low-voltage detect circuit. It is suitable for system reset control, undervoltage detection and time-out control applications. The XC61FN2542MR-G also comes with digital I/O ports, SPI bus interface, 32-bit counter/timer, and four-channel 10-bit A/D converter. The device is available in 5-pin SOP and USP packages.