Key features

• Operating characteristics

– Voltage range: 2.7 to 5.5 V

– Flash write voltage range: 2.7 to 5.5 V

– Temperature range (ambient): -40 to 105°C

• Performance

– Up to 20 MHz Arm® Cortex-M0+ core

– Single cycle 32-bit x 32-bit multiplier

– Single cycle I/O access port

• Memories and memory interfaces

– Up to 64 KB flash

– Up to 256 B EEPROM

– Up to 4 KB RAM

• Clocks

– Oscillator (OSC) - supports 32.768 kHz crystal or 4

MHz to 20 MHz crystal or ceramic resonator; choice

of low power or high gain oscillators

– Internal clock source (ICS) - internal FLL with

internal or external reference, 31.25 kHz

pre-trimmed internal reference for 16 MHz system clock

(able to be trimmed for up to 20 MHz system clock)

– Internal 1 kHz low-power oscillator (LPO)

• System peripherals

– Power management module (PMC) with three power

modes: Run, Wait, Stop

– Low-voltage detection (LVD) with reset or interrupt,

selectable trip points

– Watchdog with independent clock source (WDOG)

– Programmable cyclic redundancy check module

(CRC)

– Serial wire debug interface (SWD)

– Bit manipulation engine (BME)

• Security and integrity modules

– 64-bit unique identification (ID) number per chip

• Human-machine interface

– Up to 57 general-purpose input/output (GPIO)

– Two up to 8-bit keyboard interrupt modules (KBI)

– External interrupt (IRQ)

• Analog modules

– One up to 16-channel 12-bit SAR ADC, operation in

Stop mode, optional hardware trigger (ADC)

– Two analog comparators containing a 6-bit DAC

and programmable reference input (ACMP)

• Timers

– One 6-channel FlexTimer/PWM (FTM)

– Two 2-channel FlexTimer/PWM (FTM)

– One 2-channel periodic interrupt timer (PIT)

– One real-time clock (RTC)

• Communication interfaces

– Two SPI modules (SPI)

– Up to three UART modules (UART)

– One I2C module (I2C)

• Package options

– 64-pin QFP/LQFP

– 44-pin LQFP

– 32-pin LQFP