This website uses cookies. By using this site, you consent to the use of cookies. For more information, please take a look at our Privacy Policy.


IC RF TxRx + MCU General ISM > 1GHz 2.4GHz 48-VFQFN Exposed Pad

Inquiry Add To Bom

ATSAMR21G17A-MU General Description

An IEEE 802.15.4 compliant single chip combines an ARM® Cortex®-M0+ based 32-bit microcontroller and best-in-class 2.4GHz RF transceiver. It offers an excellent RF performance, with a link budget of 103dBm while consuming 50% less active current than existing offerings. The device features IEEE 802.15.4 MAC hardware accelerators and automatic transmission modes, wake-on-radio, offers twelve-channel direct memory access (DMA) controller, up to four configurable SERCOM modules for I2C, SPI and USART and a 128-bit AES crypto engine. The device features further blocks like a Peripheral Touch Controller (PTC), Full-Speed USB Device and embedded Host and hardware components to support RF distance measurements. To complement that set the SAM R21 also supports external power amplifiers and antenna diversity.

Microchip's complimentary and confidential Wireless Check online design review service is available for customers who have selected our products for their application design-in*.
*The online design review service is subject to Microchip's Program Terms and Conditions and requires a myMicrochip account.

Microchip Technology, Inc Inventory
Microchip Technology, Inc Original Stock


Category RF and WirelessRF Transceiver ICs Mfr Microchip Technology
Series SMART™ SAM R21 Package Tray
Product Status Active Digi-Key Programmable Not Verified
Type TxRx + MCU RF Family/Standard General ISM > 1GHz
Protocol - Modulation O-QPSK
Frequency 2.4GHz Data Rate (Max) 250kbps
Power - Output 4dBm Sensitivity -99dBm
Memory Size 128kB Flash, 16kB SRAM Serial Interfaces I²C, SPI, UART, USART, USB
GPIO 28 Voltage - Supply 1.8V ~ 3.6V
Current - Receiving 11.3mA ~ 11.8mA Current - Transmitting 7.2mA ~ 13.8mA
Operating Temperature -40°C ~ 85°C Mounting Type Surface Mount
Package / Case 48-VFQFN Exposed Pad Supplier Device Package 48-QFN (7x7)
Base Product Number ATSAMR21 CPU Cortex-M0+
ADC Channels 8 ADC Resolution 12
Concurrent Mode (STA and AP) No Crypto Engine AES
Flash (KB) 128 Operating Temp (°C) -40 to 125
Operating Voltage (V) 1.8 to 3.6 Power Down Mode Current Consumption (uA) 0
RX Sensitivity (dBm) 0 SoftAP Client Count 0
TX Output Power (dBm) 0 Frequency Range 2.4 GHz
feature-packaging Tray feature-rad-hard
feature-pin-count 48 feature-supplier-package QFN EP
feature-standard-package-name QFN feature-cecc-qualified No
feature-esd-protection Unknown feature-military No
feature-aec-qualified No feature-aec-qualified-number
feature-eccn-code 5A992.c feature-svhc
feature-svhc-exceeds-threshold No

Service Policies and Others

After-Sales & Settlement Related

payment Payment

We accept TT prepayment (bank transfer), paypal, credit cards, Western Union, Money Gram.

If you have specific preferences or requirements for payment channels, please contact our sales team. 

customers are required to pay all possible fees, including sales tax,customs fees, etc.

shipping Shipping And Packing
Shipping Method

Our products are mainly transported and delivered by DHL, FedEx, UPS and other logistics partners on site -- Available to 200+ countries.


AVAQ determines and packages all devices based on electrostatic discharge (ESD) and moisture sensitivity level (MSL) protection requirements.

warranty Warranty & Returns

Our policies and procedures are designed to ensure compliance with various quality specifications and to quickly resolve quality-related issues.

We promise to provide 365 days quality assurance service for all our products.

If you have any dissatisfaction with the quality of the product you received, you can contact us for a refund or exchange, as long as the product is kept in its original condition.


You need to log in to reply. Sign In | Sign Up

Availability: 7263 pieces

Qty. Unit Price(USD) Ext. Price
1+ $7.503 $7.50
10+ $6.589 $65.89
30+ $6.030 $180.90
100+ $5.565 $556.50

The prices below are for reference only.