The NM1120 series can run up to 48 MHz and operate at 2.1V ~ 5.5V, -40℃ ~ 105℃, and thus can support a variety of industrial control applications which need high performance. The NM1120 offers 29.5 Kbytes embedded program Flash, size configurable Data Flash (shared with program flash), 2 Kbytes Flash for the ISP, 1.5 Kbytes SPROM for security, and 4 Kbytes SRAM.

Many system level peripheral functions, such as I/O Port, Timer, UART, SPI, I²C, PWM, ADC, Watchdog Timer, Analog Comparator and Brown-out Detector, have been incorporated into the NM1120 to reduce component count, board space and system cost. 

Additionally, the NM1120 series is equipped with ISP (In-System Programming) and ICP (In-Circuit Programming) functions, which allow the user to update the program memory without removing the chip from the actual end product.