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ATSAMD21J18A-CU ARM Cortex-M0+ 32-bit microcontroller with 256KB flash memory, 32KB RAM, operating at 48MHz. Packaged in a 64-UFBGA surface mount package.
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ATSAMD21J18A-CU

Available from 1 distributors
Mfr Name: Microchip Technology
Microchip Technology
ARM Cortex-M0+ 32-bit microcontroller with 256KB flash memory, 32KB RAM, operating at 48MHz. Packaged in a 64-UFBGA surface mount package.
✓ Total Stock: 15,000 pcs

ATSAMD21J18A-CU Available from 1 distributor

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15,000 pcs
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ATSAMD21J18A-CU Specifications Quick View

Most important parameters for selection – full specs in datasheet.
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Connectivity
Core Processor
Core Size
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ATSAMD21J18A-CU Description

Short technical summary and product information.

The Microchip Technology ATSAMD21J18A-CU is a 32-bit microcontroller based on the ARM Cortex-M0+ core. It operates at a maximum speed of 48MHz and features 256KB of flash memory and 32KB of SRAM. The device includes a 20-channel 12-bit analog-to-digital converter and a single 10-bit digital-to-analog converter. Peripheral integration includes brown-out detection, reset, DMA, I2S, power-on reset, PWM, and watchdog timer. Connectivity options include I2C, LINbus, SPI, UART/USART, and USB. The supply voltage range is 1.62V to 3.6V, and the operating temperature range is -40°C to 85°C. The microcontroller is supplied in a 64-UFBGA (5x5) package suitable for surface mount assembly.

ATSAMD21J18A-CU Quick Information

Product Type: Microcontroller
Series: SAM D21
Canonical Name: Microchip Technology ATSAMD21J18A-CU ARM Cortex-M0+ 32-bit Microcontroller, 256KB Flash, 64-UFBGA
Subcategory: Microcontrollers

ATSAMD21J18A-CU Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

ATSAMD21J18A-CU Features

  • ARM Cortex-M0+ 32-bit processor core.
  • 256KB flash memory with 32KB SRAM.
  • 48MHz maximum operating speed.
  • 52 I/O pins with multiple serial interfaces.
  • 20-channel 12-bit ADC and 10-bit DAC.

ATSAMD21J18A-CU Applications

  • Ideal for USB-based embedded systems.
  • Supports LINbus for automotive networks.
  • Suitable for industrial control with I2C and SPI.
  • Designed for battery-powered IoT devices.

ATSAMD21J18A-CU FAQs

7 frequently asked questions generated from this part’s specifications.
What is the operating voltage range?

1.62V to 3.6V

What is the package type?

64-UFBGA (5x5)

What is the operating temperature range?

-40°C to 85°C

Is the ATSAMD21J18A-CU RoHS compliant?

Yes, RoHS3 compliant (unverified)

What core processor does it use?

ARM Cortex-M0+

What is the maximum clock speed?

48MHz

How much flash memory is available?

256KB

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