Nuvoton M054ZBN

The Nuvoton M054ZBN is a + Core - ARM Cortex-M0 core runs up to 50MHz. - 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 - 16K bytes Flash Memory for program code. - 4kB flash for ISP loader - Support ISP/IAP program code update + SRAM Memory - 4K bytes embedded SRAM. + Clock Control - Build-in 22MHz OSC (Trimmed to 1%) for system operation - Low power 10KHz OSC for watchdog and wakeup sleep operation. - Support one PLL, up to 50MHz, for high performance system operation. - External 12MHz crystal input for 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 24-bit timer with 8-bit pre-scaler. + Watch Dog Timer + PWM/Capture - up to four 16-bit PWM generators. - Up to five 16-bit digital Capture timers. - Support Capture interrupt + UART - Up to two sets UART devices. - Buffered receiver and transmitter, each with 16 bytes FIFO. + SPI - Up to one set of SPI device. - Master up to 16 Mbps / Slave up to 10 Mbps. + I2C - One set of I2C device. - Master/Slave up to 1Mbit/s. + ADC - 12-bit SAR ADC with 600k SPS. - Single mode/burst mode/single cycle scan mode/continuos scan mode + Brown-out detector - with 4 levels: 4.5V/3.8V/2.7V/2.4V.