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1 Key features

1.1 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 125°C

1.2 Performance

? Up to 40 MHz Arm? Cortex-M0+ core and up to 20 MHz bus clock

? Single cycle 32-bit x 32-bit multiplier

? Single cycle I/O access port

1.3 Memories and memory interfaces

? Up to 64 KB flash

? Up to 256 B EEPROM

? Up to 4 KB RAM

1.4 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 40 MHz system and core clock.

? Internal 1 kHz low-power oscillator (LPO)

1.5 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)

1.6 Security and integrity modules

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

1.7 Human-machine interface

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

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

? External interrupt (IRQ)

1.8 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)

1.9 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)

1.10 Communication interfaces

? Two SPI modules (SPI)

? Up to three UART modules (UART)

? One I2C module (I2C)

1.11 Package options

? 64-pin LQFP

? 32-pin LQFP