NuTiny-NUC121S Development Board

The NuTiny-NUC121S Development Board is a versatile and powerful board for microcontroller development. With its NUC121S chipset and various interfaces, this board offers stable and efficient performance for a variety of projects. It also has a compact and user-friendly design, making it suitable for both beginners and professionals.

NuMicro® NUC121 series is a 32-bit USB microcontroller series, supporting main frequency up to 50 MHz, 32 KB Flash, 8 KB SRAM, 12-bit ADC, built-in 48 MHz high-precision high-speed RC oscillator and supports USB transmission without plug-in Crystal-less and 24-channel PWM/BPWM make the NUC121 series very efficient in USB transmission and control. The NUC121 series supports industrial-grade operating temperature range (-40℃~105℃), wide operating voltage (2.5V~5.5V) and high anti-interference capability (8KV ESD, 4KV EFT).

The NUC121 series embeds an additional security protection Flash block (SPROM, Security Protection ROM), providing an independent and secure encrypted execution area to protect developers' intellectual property rights. NuMicro® NUC121 comes with ISP (In-System Programming), ICP (In-Circuit Programming) and 1AP (In-Application Programming) functions, allowing users to upgrade the program memory directly on the circuit board without
removing the chip.

Specification of NuTiny-NUC121S Development Board:

• Model: NuTiny-SDK-NUC121

• Core architecture: ARM Cortex®-MO

• Application areas: USB composite devices, e-sports mouse/keyboard/controller, USB Type-C headsets, industrial automation, Internet of Things devices, etc.

• Support low-power power-down mode

• Nested vectored interrupt controller NVIC supports 32 interrupt inputs, each interrupt has 4 priority levels,

• supports serial debugging (SWD) interface, 2 watch points/4 break points

• Built-in set of LDO supports wide operating voltage range: 2.5V~5.5V

• Memory:

  • 32K bytes Flash is used to store user programs (APROM)

  • 4.5K bytes Flash is used to store ISP boot code (LDROM)

• Supports in-system programming (ISP) updating of applications

• The address and size of data Flash can be configured

  • 8K bytes built-in SRAM

  • 512 Bytes Security Protection (SPROM)

• Peripheral functions:

  • Programming: In-circuit programming (ICP), in-system programming (ISP), in-application programming (IAP)

  • Under voltage detection:

  • Supports four levels of detection voltage: 4.4V/3.7V/2. 7V/2. 2V