48 MHz Cortex-M0+ Based Microcontroller

Supports ultra low power ARM based microcontroller with crystal-less USB feature. Ideal solution for smart phone accessories, gaming accessories, sensor hub applications, etc.
The products offers:
• 32KB SRAM for massive data processing
• Ultra low dynamic and static power consumption with smart peripherals for low power applications
• FlexIO for flexible and high performance serial interfaces
• Highly integrated peripherals, including new boot ROM and high accurate internal voltage reference, etc.
• USB FS 2.0 feature without needs of external crystal

Core
• ARM® Cortex®-M0+ core up to 48 MHz

Memories
• Up to 256 KB program flash memory
• Up to 32 KB SRAM
• 16 KB ROM with build-in bootloader
• 32 Byte Register File

System peripherals
• 4-channel DMA controller
• Watchdog
• Low-leakage wakeup unit
• SWD debug interface and Micro Trace Buffer
• Bit Manipulation Engine

Clocks
• 48 MHz high accuracy internal reference clock
• 32–40 kHz, or 3–32 MHz crystal oscillator
• 1 kHz LPO clock
• 8/2 MHz IRC

Operating Characteristics
• Voltage range: 1.71 to 3.6 V
• Temperature range: –40 to 105 °C

Human-machine interface
• General-purpose input/output up to 50

Communication interfaces
• USB full-speed slave controller with on-chip
   transceiver and 5 V to 3.3 V regulator, supporting
   crystal-less recovery
• Two 16-bit SPI modules
• One UART module supporting ISO7816
• Two LPUART modules
• Two I2C modules supporting up to 1 Mbit/s
• One I2S (SAI) module
• One FlexIO module

Analog Modules
• 16-bit, 16-channel SAR ADC with internal voltage reference
• High-speed analog comparator containing a 6-bit DAC and programmable reference input
• One 12-bit DAC
• 1.2 V voltage reference (Vref)

Timers
• One 6-channel Timer/PWM module
• Two 2-channel Timer/PWM modules
• One low-power timer
• Periodic interrupt timer
• Real time clock

Security and integrity modules
• 80-bit unique identification number per chip