Arm Cortex-M0

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The NUC125SC2AE is a 32-bit microcontroller (MCU) with ARM® Cortex®-M0 core. It runs up to 50 MHz and supports 32 KB Flash, 8 KB SRAM, 12-bit ADC, 48 MHz high speed RC oscillator supporting crystal-less USB transfer and 23-ch PWM/BPWM which makes it powerful in USB communication and data control-processing. The NUC125SC2AE supports industrial operating temperature from -40℃ to 105℃, wide range power supply from 2.5V to 5.5V, and high noise immunity (8KV ESD, 4KV EFT). The available packages is LQFP64.

The NUC125SC2AE supports independent VDDIO pin and voltage adjustable interface (VAI) with individual I/O (1.8V-5.5V) connecting to the external components with different voltage ranges to allow more flexibility in designs.

The NUC125SC2AE also embedded an extra SPROM (Security Protection ROM), providing a secure code execution area to protect the intelligent property of developers. 

Target Application:

USB Composite Device, Gaming Mouse/Keyboard/Pad, USB Type-C Earphone, Industrial Automation, IoT device, etc.

Key Features:

  • Core

- ARM® Cortex®-M0 core

- Maximum frequency: 50 MHz

- Single-cycle 32-bit hardware multiplier

  • Memory

- 32 KB application ROM (APROM)

- 4.5 KB Flash for loader (LDROM)

- 512 B Security Protection ROM (SPROM)

- 8 KB embedded SRAM supports PDMA mode

- Configurable Data Flash

- Supports program update by:

  • ISP (In-System Programming)
  • ICP (In-Circuit Programming)
  • IAP (In-Application Programming)
  • PDMA (Peripheral DMA)

- 5 independent configurable channels

- Single and burst transfer type

  • ADC

- Supports 12-bit SAR ADC

- Up to 12 single-end analog input channels or 6 differential channels

- Supports PDMA transfer


- 23-ch PWM/BPWM/Capture maximum clock frequency up to 100 MHz

- PWM/BPWM supports trigger ADC on three kinds of events

- PWM supports brake function

  • Connectivity

- Up to one USCI interface could be set as UART, SPI, I²C mode

- Up to one UART, one SPI/I²S and two I²C for independent set

- Crystal-less USB 2.0 FS

  • Clock Control

- 48 MHz internal RC (HIRC)

- 10 kHz internal RC (LIRC)

- 4-24 MHz external crystal (HXT)

- 32.768 kHz external crystal (LXT)

- PLL up to 100 MHz

  • Voltage Adjustable Interface

- User Configurable 1.8-5.5V I/O Interface with a dedicated power input (VDDIO) (NUC125 only)

- Supports USCI interface (UART, SPI, I²C mode)

  • One built-in temperature sensor with 1℃ resolution
  • Operating Voltage: 2.5-5.5V
  • Operating Temperature: -40℃-105℃

For more details and documents, please link to Nuvoton Official Website GO

Volume discounts

QuantityDiscountYou Save
10023.47%Up to$49.99
50036.15%Up to$385.00
100042.25%Up to$899.93
200044.13%Up to$1,879.94
Ordering No.NUC125SC2AE
Part No.NUC125SC2AE
Flash (Kbytes)32
SRAM (Kbytes)8
ADC (12-bit)12
Chip PackageLQFP64* (7x7)

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