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NUC122 series diagram

The NUC120/123/220 series operates at 2.5V ~ 5.5V and -40℃ ~ 105℃, and provides 22.1184 MHz high precision internal oscillator (±1% accuracy at 25℃, 5V; full range ±3%), provides USB 2.0 full speed device, rich peripherals (ex. RTC, ISO-7816-3, CRC, I²S) , rich connectivity interfaces and high immunity (8kV ESD, 4kV EFT) . Package types include LQFP48, LQFP64 and LQFP100.

NUC122 Series is Not Recommended For New Designs (NRND)

Recommended Part Number:

- NUC123 Series


Target Application:

Consumer, Security/ Alarm, Temperature Sensor, Communication System, etc.

Key Features:


- Cortex-M0 processor

- Max frequency of 72 MHz

- Operating voltage: 2.5V to 5.5V

- Temperature range: -40℃ ~ 105℃


- 128 KB of flash memory

- 16 KB of SRAM

- 4 KB of Data Flash

- ISP (In-System Programming)

- ICP (In-Circuit Programming)

- IAP (In-Application Programming)


- Up to 8 channels

- 12-bit resolution

- Up to 800 kSPS

- ±1℃ accurate Temperature sensor



      - Up to eight-channel PWM or three complementary paired PWM outputs

- Period/duty trigger ADC function


- One USB 2.0 full speed device

- Up to four SPIs (up to 36 MHz)

- Up to two I²Cs (up to 400 kHz)

- Up to six UARTs (up to 1 Mbps)

      - Up to three ISO-7816-3 interfaces for security application

- 16/8 bits EBI interface

Clock Control

- 4 to 24 MHz external crystal oscillator

      - 22.1184 MHz internal RC oscillator (±1% accuracy at 25℃, 5V)



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