RFQ/BOM 0 Sign In / Register

Select Your Location



Images are for reference only.
See Product Specifications for product details.

Social Media



Orders over $200 are eligible for a limited edition Chinese-style gift.

Orders over $200 are eligible for a limited edition Chinese-style gift.

Orders over $1000 qualify for a $30 shipping fee waiver.

Orders surpassing $5000 enjoy waived shipping and transaction fees.

These offers are applicable to both new and existing customers and are valid from January 1st, 2024, to December 31st, 2024.

  • Manufacturer:


  • Datasheet:

    ATSAMD21G18A-AU datasheet

  • Package/Case:


  • Product Category:

    RF Integrated Circuits

  • RoHS Status: RoHS Status Lead free/RoHS Compliant

Submit your quote request now, and we expect to provide a quote within April 22, 2024. Place your order now, and we expect to complete the transaction within April 24, 2024. Ps:Time is according to GMT+8:00.

fedex ups ems dhl other
Payment :
jcb American express tt discover paypal

Stock:10000 PCS

Our commitment is to deliver prompt quotations within 12 hours. For further assistance, please contact us at [email protected].

ATSAMD21G18A-AU Product Details


• Processor

– Arm®


-M0+ CPU running at up to 48 MHz

• Single-cycle hardware multiplier

• Micro Trace Buffer (MTB)

• Memories

– 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

• System

– 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

• 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 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

– PWM Channels using TC and TCC peripherals:

• 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


• 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

• I/O

– 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 (-40C to 105C)

• Drop-in compatible with SAM D20

• Packages

– 64-pin TQFP, QFN, UFBGA

– 48-pin TQFP, QFN

– 45-pin WLCSP

– 35-pin WLCSP

– 32-pin TQFP, QFN

• Operating Voltage

– SAM D21: 1.62V – 3.63V

– SAM DA1: 2.7V - 3.63V


Request a quote ATSAMD21G18A-AU at censtry.com. All items are new and original with 365 days warranty! The excellent quality and guaranteed services of ATSAMD21G18A-AU in stock for sale, check stock quantity and pricing, view product specifications, and order contact us:[email protected].
The price and lead time for ATSAMD21G18A-AU depending on the quantity required, please send your request to us, our sales team will provide you price and delivery within 24 hours, we sincerely look forward to cooperating with you.


ATSAMD21G18A-AU Related Products