Specification	ATSAML21G16B-ANT

Connectivity	SCI, UART/USART, USB, I2C, LINbus, SPI
Core Processor	ARM® Cortex®-M0+
Core Size	32-Bit Single-Core
Data Converters [custom]	12, 12
Data Converters [custom]	14, 2
Mounting Type	Surface Mount
Number of I/O	37
Operating Temperature [Max]	105 °C
Operating Temperature [Min]	-40 °C
Oscillator Type	Internal
Package / Case	48-TQFP
Peripherals	WDT, DMA, PWM, POR
Program Memory Size	64 KB
Program Memory Type	FLASH
RAM Size	8 K
Speed	48 MHz
Supplier Device Package	48-TQFP (7x7)
Voltage - Supply (Vcc/Vdd) [Max]	3.63 V
Voltage - Supply (Vcc/Vdd) [Min]	1.62 V

ATSAML21G18B Series

Part	Oscillator Type	Connectivity	Data Converters [custom]	Data Converters [custom]	Program Memory Size	Package / Case	Mounting Type	Supplier Device Package	Voltage - Supply (Vcc/Vdd) [Min]	Voltage - Supply (Vcc/Vdd) [Max]	Peripherals	Core Size	Program Memory Type	Operating Temperature [Max]	Operating Temperature [Min]	Core Processor	Number of I/O	Speed	RAM Size	Data Converters
Microchip Technology ATSAML21G18B-MNT	Internal	I2C LINbus SCI SPI UART/USART USB	12 12	2 14	256 KB	48-VFQFN Exposed Pad	Surface Mount	48-QFN (7x7)	1.62 V	3.63 V	DMA POR PWM WDT	32-Bit Single-Core	FLASH	105 °C	-40 °C	ARM® Cortex®-M0+	37	48 MHz
Microchip Technology ATSAML21E17B-ANT	Internal	I2C LINbus SCI SPI UART/USART USB			128 KB	32-TQFP	Surface Mount	32-TQFP (7x7)	1.62 V	3.63 V	DMA POR PWM WDT	32-Bit Single-Core	FLASH	105 °C	-40 °C	ARM® Cortex®-M0+	25	48 MHz	16 K	A/D 10x12b D/A 2x12b
Microchip Technology ATSAML21J18B-ANT	Internal	I2C LINbus SCI SPI UART/USART USB	12	2 channels 20	256 KB	64-TQFP	Surface Mount	64-TQFP (10x10)	1.62 V	3.63 V	DMA POR PWM WDT	32-Bit Single-Core	FLASH	105 °C	-40 °C	ARM® Cortex®-M0+	51	48 MHz
Microchip Technology ATSAML21G16B-MUT	Internal	I2C LINbus SCI SPI UART/USART USB	12 12	2 14	64 KB	48-VFQFN Exposed Pad	Surface Mount	48-QFN (7x7)	1.62 V	3.63 V	DMA POR PWM WDT	32-Bit Single-Core	FLASH	85 °C	-40 °C	ARM® Cortex®-M0+	37	48 MHz	8 K
Microchip Technology ATSAML21G16B-MNT	Internal	I2C LINbus SCI SPI UART/USART USB	12 12	2 14	64 KB	48-VFQFN Exposed Pad	Surface Mount	48-QFN (7x7)	1.62 V	3.63 V	DMA POR PWM WDT	32-Bit Single-Core	FLASH	105 °C	-40 °C	ARM® Cortex®-M0+	37	48 MHz	8 K
Microchip Technology ATSAML21J18B-AUT	Internal	I2C LINbus SCI SPI UART/USART USB	12	2 channels 20	256 KB	64-TQFP	Surface Mount	64-TQFP (10x10)	1.62 V	3.63 V	DMA POR PWM WDT	32-Bit Single-Core	FLASH	85 °C	-40 °C	ARM® Cortex®-M0+	51	48 MHz
Microchip Technology ATSAML21J17B-AUT	Internal	I2C LINbus SCI SPI UART/USART USB	12	2 channels 20	128 KB	64-TQFP	Surface Mount	64-TQFP (10x10)	1.62 V	3.63 V	DMA POR PWM WDT	32-Bit Single-Core	FLASH	85 °C	-40 °C	ARM® Cortex®-M0+	51	48 MHz	16 K
Microchip Technology ATSAML21G16B-ANT	Internal	I2C LINbus SCI SPI UART/USART USB	12 12	2 14	64 KB	48-TQFP	Surface Mount	48-TQFP (7x7)	1.62 V	3.63 V	DMA POR PWM WDT	32-Bit Single-Core	FLASH	105 °C	-40 °C	ARM® Cortex®-M0+	37	48 MHz	8 K
Microchip Technology ATSAML21J18B-MUT	Internal	I2C LINbus SCI SPI UART/USART USB	12	2 channels 20	256 KB	64-VFQFN Exposed Pad	Surface Mount	64-QFN (9x9)	1.62 V	3.63 V	DMA POR PWM WDT	32-Bit Single-Core	FLASH	85 °C	-40 °C	ARM® Cortex®-M0+	51	48 MHz
Microchip Technology ATSAML21E16B-MUT	Internal	I2C LINbus SCI SPI UART/USART USB			64 KB	32-VFQFN Exposed Pad	Surface Mount	32-VQFN (5x5)	1.62 V	3.63 V	DMA POR PWM WDT	32-Bit Single-Core	FLASH	85 °C	-40 °C	ARM® Cortex®-M0+	25	48 MHz	8 K	A/D 10x12b D/A 2x12b

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

Distributor	Package	Quantity	$

Digikey	Cut Tape (CT)	1	$ 4.50
	Digi-Reel®	1	$ 4.50
	Tape & Reel (TR)	2500	$ 3.70
Microchip Direct	T/R	1	$ 4.50
		25	$ 4.08
		100	$ 3.70
		1000	$ 3.37
		5000	$ 3.24
Newark	Each (Supplied on Full Reel)	2500	$ 3.82

Description

General part information

ATSAML21G18B Series

The ultra-low-power ATSAML21 based Flash microcontroller (MCU) feature sophisticated power management technologies and consumes under 35 µA/MHz in active mode and 200nA in Sleep mode. In addition to ultra-low-power performance, these devices feature Full Speed USB host and device, Event System and Sleepwalking, 12-bit analog, AES, capacitive touch sensing, built in opAmps and much more.

Supported by MPLAB X IDE and [MPLAB Harmony](https://www.microchip.com/en-us/tools-resources/configure/mplab-harmony).

**Functional Safety**

Documents

Technical documentation and resources

Datasheet

ATSAML21G16B-ANT

Deep-Dive with AI

ATSAML21G16B-ANT

Deep-Dive with AI

Technical Specifications

ATSAML21G18B Series

Pricing

Description

ATSAML21G18B Series

Documents

Datasheet

SAM L21 Family Silicon Errata and Data Sheet Clarification

SAM L21 Family Data Sheet

AT06549: Ultra Low Power Techniques

AN_42410 - AT03975: Getting Started with SAM L21

AT03974: Read While Write EEPROM

Introduction to MPLAB X IDE and MPLAB Harmony v3 for Atmel Studio and ASF users

ATSAML21G18B Series