ATSAMD21E16L-AFT Microchip 32bit MCU

ATSAMD21E16L-AFT Overview

NOTE: ATSAMD21E16A is not recommended for new designs, please use ATSAMD21E16B.

A low-power, high-performance ARM® Cortex®-M0+ -based Flash microcontroller optimized for control applications, the ATSAMD21E16 is ideal for a wide range of home automation, consumer, metering, and industrial applications. It features:

64KB of Flash and 8KB of SRAM
Up to 48MHz operating frequency
Five serial communication (SERCOM) modules configurable as UART/USART, SPI or I2C, four 16-bit timer/counters, two 24-bit timer/counters, 32-bit Real-Time Clock and calendar, one 14-channel 12-bit ADC, one 10-bit DAC and four analog comparators
1.62V to 3.63V power supply
32-pin package with up to 26 GPIO pins
Supported by Atmel Studio, ASF and the STK600 development platform

Supported by MPLAB X IDE and MPLAB Harmony.

Features

Processor

ARM Cortex-M0+ CPU running at up to 48MHz
- Single-cycle hardware multiplier
- Micro Trace Buffer

Memories

64KB in-system self-programmable Flash
8KB SRAM Memory

System

Power-on reset (POR) and brown-out detection (BOD)
Internal and external clock options with 48MHDigital Frequency Locked Loop (DFLL48M) and 48MHto 96MHFractional
External Interrupt Controller (EIC)
16 external interrupts
One non-maskable interrupt
Two-pin Serial Wire Debug (SWD) programming, test and debugging interface
Drop in compatible with SAM D20

Low Power

Idle and standby sleep modes
SleepWalking peripherals

Peripherals

12-channel Direct Memory Access Controller (DMAC)
12-channel Event System
Three 16-bit Timer/Counters (TC), configurable as either:
- One 16-bit TC with compare/capture channels
- One 8-bit TC with compare/capture channels
- One 32-bit TC with compare/capture channels, by using two TCs
Three 24-bit 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
32-bit Real Time Counter (RTC) with clock/calendar function
Watchdog Timer (WDT)
CRC-32 generator
One full-speed (12Mbps) Universal Serial Bus (USB) 2.0 interface
- Embedded device function
- Eight endpoints
Four Serial Communication Interfaces (SERCOM), each configurable to operate as either:
- USART with full-duplex and single-wire half-duplex configuration
- I2C Bus up to 3.4MHz
- SMBUS/PMBUS
- SPI
- LIN slave
12-bit, 350ksps Analog-to-Digital Converter (ADC) with up to 10 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, 350ksps Digital-to-Analog Converter (DAC)
Two Analog Comparators (AC) with window compare function
Peripheral Touch Controller (PTC)
- 256-channel capacitive touch and proximity sensing