Nuvoton NUC220LE3AN

The Nuvoton NUC220LE3AN is a Core - ARM Cortex-M0 core running up to 50 MHz - Supports low power sleep mode - NVIC for the 32 interrupt inputs, with 4-levels of priority - Serial Wire Debug Flash Memory - 32K/64K/128K bytes Flash for program code - 4 KB flash for ISP loader - ISP/IAP application code update - Configurable data flash address and size for 128 KB system - fixed 4 KB data flash for the 32 KB, 64 KB system SRAM Memory - 8K/16K bytes embedded SRAM PDMA (Peripheral DMA) - 9 channels Clock Control - Built-in 22.1184 MHz high speed oscillator for system operation - Built-in 10 kHz low speed oscillator for Watchdog Timer and Wake-up operation - PLL, up to 50 MHz, for high performance system operation - External 4~24 MHz high speed crystal input - External 32.768 kHz low speed crystal input GPIO - 4 I/O modes (Quasi-bidirectional, Push-pull output, Open-drain output, Input only with high impendence) Timer - 4 sets of 32-bit timers Watchdog Timer Window Watchdog Timer RTC - RTC counter (second, minute, hour), calendar counter (day, month, year) PWM/Capture - Up to 4 built-in 16-bit PWM generators UART - Up to 3 UART controllers - IrDA (SIR), LIN, RS-485 9 bit mode SPI - Up to 4 sets of SPI controllers I2C - Up to 2 sets of I2C device I2S - Interface with external audio CODEC - Capable of handling 8-, 16-, 24- and 32-bit word sizes PS/2 Device - Host communication inhibit and request to send detection USB 2.0 Full-Speed Device - On-chip USB Transceiver ADC - 12-bit SAR ADC with 760 kSPS Analog Comparator - Up to 2 analog comparators Smart Card Host (SC) - up to 3 ISO-7816-3 ports 96-bit unique ID (UID) One built-in temperature sensor Brown-out Detector - With 4 levels: 4.4 V/3.7 V/2.7 V/2.2 V.