Microchip Technology, Inc. ATSAMD21E16

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. Functional Safety This device supports the ISO 26262 (ASIL B), IEC 61508 (SIL 2) and IEC 60730 (Class B) functional safety standards. · The Functional Safety Manual, FMEDA and information on the Diagnostic Software are available under NDA through the request form on the 32-bit Microcontrollers Functional Safety web page. · To request any information about the SIL 2 STL, please fill out and submit the request form on Industrial Safety Self-Test Library web page. · Learn more about 32-bit MCUs with Functional Safety capabilities including device hardware and certified software libraries. Additional 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 I/O 26 GPIO pins Packages 32-pin TQSP, QFN, WLCSP Operating Voltage 1.62V – 3.63V