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SAM L21

SAM L21 Preliminary Summary

(file size: 921KB, 34 pages, revision B, updated: 02/2015)

SAM L21

SAM L21 Preliminary

(file size: 9.4MB, 1171 pages, revision B, updated: 02/2015)
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The ultra-low-power, high-performance ATSAML21J18A ARM® Cortex®-M0+ based Flash microcontroller (MCU) is ideal for a wide range of IoT and battery-powered applications. It features:

  • 256KB of Flash and 40KB of SRAM
  • Up to 48MHz operating frequency
  • Six serial communication modules (SERCOM) configurable as UART/USART, SPI or I2C, eight 16-bit timer/counters, 32-bit Real-Time Clock and calendar, 24 PWM channels, one 20-channel 12-bit ADC, 2ch 12-bit DAC, three opAmps
  • Full Speed USB Device and embedded Host
  • 16-channel DMA and 12-channel Event System
  • AES and True Random Number Generator
  • Support for up to 192 touch channels
  • 1.62V to 3.63V power supply
  • Easy pin migration from SAM D21 and SAMD20 devices
  • Supported by Atmel Studio, the Atmel Software Framework and the SAM L21 Xplained Pro kit

Key Parameters

Parameter
Value

Flash (Kbytes):

256 Kbytes

USB Transceiver:

1

Ext Interrupts:

16

Max I/O Pins:

51

Hardware QTouch Acquisition:

Yes

CPU:

Cortex-M0+

Max. Operating Freq. (MHz):

48 MHz

Pin Count:

64

USB Speed:

Full Speed

Quadrature Decoder Channels:

0

 

Ordering Codes

Ordering Code Package Speed Power Supply Operational Range Comment Buy Online Samples
ATSAML21J18A-AUT TQFP 64A 64 48 1.62-3.6 Industrial (A) (-40°C to 85°C) Buy Request
ATSAML21J18A-MUT QFN PA 64 48 1.62-3.6 Industrial (A) (-40°C to 85°C) Buy Request