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ATSAMD21E16L - SAM21L, 64KB Flash, 8KB RAM, Motor control, Lighting, ARM Cortex M0+, low power, 32-pin

Microchip

Processor

* ARM Cortex-M0+ CPU running at up to 48MHz

* Single-cycle hardware multiplier

* Micro Trace Buffer (MTB)

Memories

* 64KB in-system self-programmable Flash

* 8KB SRAM Memory

System

* Power-on reset (POR) and brownout detection (BOD)

* Internal and external clock options with 48MHz Digital Frequency Locked Loop (DFLL48M)

* and 48MHz to 96MHz Fractional Digital Phase Locked Loop (FDPLL96M)

* External Interrupt Controller (EIC)

* 16 external interrupts

* One non-maskable interrupt

* Two-pin Serial Wire Debug (SWD) programming, test and debugging interface

Low Power

* Idle and standby sleep modes

* SleepWalking peripherals

Peripherals

* 12channel Direct Memory Access Controller (DMAC)

* 12channel Event System

* Three 16bit Timer/Counters (TC), configurable as either:

* One 16bit TC with two compare/capture channels

* One 8bit TC with two compare/capture channels

* One 32bit TC with two compare/capture channels, by using two TCs

* Three 24bit Timer/Counters for Control (TCC), with extended functions:

* Up to four compare channels with optional complementary output

* Generation of synchronized pulse width modulation (PWM) pattern across port pins

* Deterministic fault protection, fast decay and configurable dead-time between complementary output

* Dithering that increase resolution with up to 5 bit and reduce quantization error

* 32bit Real Time Counter (RTC) with clock/calendar function

* Watchdog Timer (WDT)

* CRC32 generator

* Four Serial Communication Interfaces (SERCOM), each configurable to operate as either:

* USART with full-duplex and single-wire half-duplex configuration

* I2C up to 3.4MHz

* SPI

* LIN slave

* One 12bit, 350ksps Analog-to-Digital Converter (ADC) with up to 14 channels

* Differential and single-ended input

* 1/2x to 16x programmable gain stage

* Automatic offset and gain error compensation

* Oversampling and decimation in hardware to support 13, 14, 15or 16bit resolution

* 10-bit, 350ksps Digital-to-Analog Converter (DAC)

* Four Analog Comparators (AC) with window compare function

I/O

* 26 GPIO pins

Packages

* 32-pin QFN

Operating Voltage

* 1.62V - 3.63V

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