Microchip Technology, Inc. ATsamd21g18

A low-power, high-performance Microchip's ARM® Cortex®-M0+ based flash microcontroller, the ATSAMD21G18 is ideal for a wide range of home automation, consumer, metering, and industrial applications. It features: 256KB of flash and 32KB of SRAM Up to 48MHz operating frequency Six serial communication modules (SERCOM) configurable as UART/USART, SPI or I2C, three 16-bit timer/counters, 32-bit Real-Time Clock and calendar, 20 PWM channels, one 14-channel 12-bit ADC, one 10-bit DAC Full Speed USB Device and embedded Host Support for up to 120 touch channels 1.62V to 3.63V power supply Easy pin migration to SAMD21G and SAMD21J devices Supported by Atmel Studio, ASF and the SAM D21 Xplained Pro kit 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 256KB in-system self-programmable Flash 32KB 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 Up to five 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 Six 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 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-, 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 38 GPIO pins Packages 48-pin TQFP, QFN, WLCSP Operating Voltage 1.62V – 3.63V