ATSAMD21E18A-AU

Key features

• Processor Arm Cortex-M0+ CPU running at up to 48 MHz
• Single-cycle hardware multiplier
• Micro Trace Buffer (MTB)
• 4/2/1/0.5 KB Read-While-Write (RWWEE) Flash section (not available on 256 KB devices)
• 256/128/64/32/16 KB in-system self-programmable Flash
• 32/16/8/4 KB SRAM Memory
• Power-on Reset (POR) and Brown-out Detection (BOD)
• Internal and external clock options with 48 MHz Digital Frequency-Locked Loop (DFLL48M) and 48 MHz to 96 MHz Fractional Digital Phase-Locked Loop (FDPLL96M)
• External Interrupt Controller (EIC)
• 16 external interrupts
• One Non-maskable Interrupt (NMI)
• Two-pin Serial Wire Debug (SWD) programming, test and debugging interface
• Low Power – Idle and Standby Sleep modes
• SleepWalking peripherals
• 12-channel Direct Memory Access Controller (DMAC)
• 12-channel Event System
• Up to five 16-bit Timer/Counters (TC), configurable as either: One 16-bit TC with two compare/capture channels; One 8-bit TC with two compare/capture channels; One 32-bit TC with two compare/capture channels, by using two TCs; 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
• Up to eight PWM channels on each 24-bit TCC
• Up to two PWM channels on each 16-bit TCC
• Up to two PWM channels on each 16-bit TC
• 32-bit Real Time Counter (RTC) with clock/calendar function
• Watchdog Timer (WDT)
• CRC-32 generator
• One full-speed (12 Mbps) Universal Serial Bus (USB) 2.0 interface
• Embedded host and device function
• Eight endpoints
• Up to six Serial Communication Interfaces (SERCOM), each configurable to operate as either: USART with full-duplex and single-wire half-duplex configuration; I2C up to 3.4 MHz; SPI; LIN client
• One two-channel Inter-IC Sound (I²S) interface
• One 12-bit, 350ksps Analog-to-Digital Converter (ADC) with up to 20 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-, 15- or 16-bit resolution
• 10-bit, 350 ksps Digital-to-Analog Converter (DAC)
• Up to four Analog Comparators (AC) with Window Compare function
• Peripheral Touch Controller (PTC)
• Up to 256-Channel capacitive touch and proximity sensing
• Up to 52 programmable I/O pins
• Qualification SAM D21 AEC-Q100 Grade 1 (-40°C to 125°C)
• SAM DA1 AEC-Q100 Grade 2 (-40°C to 105°C)
• Drop-in compatible with SAM D20
• Operating Voltage SAM D21: 1.62V – 3.63V
• SAM DA1: 2.7V - 3.63V