Nuvoton NUC122LD2AN

The Nuvoton NUC122LD2AN is a + Core - ARM Cortex-M0 core runs up to 60MHz. - NVIC for the 32 interrupt inputs, each with 4-levels of priority. - Serial Wire Debug supports with 2 watchpoints/4 breakpoints. + Widely operating voltage range from 2.5V to 5.5V + Flash EPROM Memory - 32K/64K bytes Flash EPROM for program code. - 4kB flash for ISP loader - Support ISP/IAP program code update - Support 2 wire In Circuit Program (ICP) function to update code through SWD/ICE interface - Support fast parallel programming mode by external programmer + SRAM Memory - 4K/8K bytes embedded SRAM. + Clock Control - Build-in 22.1184 MHz OSC (Trimmed to 3%) for system operation - Low Speed 10KHz OSC for watchdog and wakeup sleep operation. - Support one PLL, up to 60MHz, for high performance system operation. - External 4~24 MHz crystal input for USB and precise timing operating. - External 32 kHz crystal input for RTC function and low power system operation. + GPIO - Four I/O modes (bi-direction, Push-Pull, Open-Drain, IN high impendence) + Timers - 4 sets of 32-bit timer with 24-bit counters and one 8-bit pre-scaler. + Watch Dog Timer + RTC + PWM/Capture - up to two 16-bit PWM generators. - Up to four 16-bit digital Capture timers. - Support Capture interrupt + UART - Two UART controllers - Support IrDA(SIR) function - Support RS-485 9-bit mode and direction control + SPI - Up to two sets of SPI device. - Master up to 20 MHz / Slave up to 10 MHz. + I2C - One set of I2C device. - Master/Slave up to 1Mbit/s. + USB 2.0 Full-Speed Device - Support Control, Bulk In/Out, Interrupt and Isochronous transfers. - Provide 6 programmable endpoints. + Brown-out detector - with 4 levels: 4.5V/3.8V/2.7V/2.4V + One built-in LDO.