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HomeProductsRF/IF and RFIDRF Transceiver ICsATSAMR21G18A-MU
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ATSAMR21G18A-MU - Microchip Technology

Manufacturer Part Number
ATSAMR21G18A-MU
Manufacturer
Microchip Technology
Allelco Part Number
32D-ATSAMR21G18A-MU
ECAD Model
Parts Description
IC RF TXRX+MCU ISM>1GHZ 48VFQFN
Package
48-VFQFN Exposed Pad
Data sheet
ATSAMR21E,G Summary.pdf
SAM R21E,G Datasheet.pdf
RoHs Status
ROHS3 Compliant
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Specifications

ATSAMR21G18A-MU Tech Specifications
Microchip Technology - ATSAMR21G18A-MU technical specifications, attributes, parameters and parts with similar specifications to Microchip Technology - ATSAMR21G18A-MU

Product Attribute Attribute Value  
Manufacturer Microchip Technology  
Voltage - Supply 1.8V ~ 3.6V  
Type TxRx + MCU  
Supplier Device Package 48-QFN (7x7)  
Series SMART™ SAM R21  
Serial Interfaces I²C, SPI, UART, USART, USB  
Sensitivity -99dBm  
RF Family/Standard General ISM > 1GHz  
Protocol -  
Power - Output 4dBm  
Package / Case 48-VFQFN Exposed Pad  
Product Attribute Attribute Value  
Package Tray  
Operating Temperature -40°C ~ 85°C  
Mounting Type Surface Mount  
Modulation O-QPSK  
Memory Size 256kB Flash, 32kB SRAM  
GPIO 28  
Frequency 2.4GHz  
Data Rate (Max) 250kbps  
Current - Transmitting 7.2mA ~ 13.8mA  
Current - Receiving 11.3mA ~ 11.8mA  
Base Product Number ATSAMR21  

Environmental & Export Classifications

ATTRIBUTE DESCRIPTION
RoHs Status ROHS3 Compliant
Moisture Sensitivity Level (MSL) 3 (168 Hours)
REACH Status REACH Unaffected
ECCN 3A991A2
HTSUS 8542.31.0001

Parts Introduction

Manufacturer Part Number

ATSAMR21G18A-MU

Manufacturer

Microchip Technology

Introduction

Highly integrated IEEE 802.15.4-compliant 2.4GHz RF transceiver and ARM Cortex-M0+ MCU

Product Features and Performance

Low-power operation with 7.2mA transmit and 11.3mA receive current consumption

High receiving sensitivity of -99dBm

Maximum data rate of 250kbps

256kB Flash and 32kB SRAM memory

28 GPIO pins

Supports multiple serial interfaces: I2C, SPI, UART, USART, USB

Product Advantages

Optimized for low-power, battery-operated wireless applications

Integrated MCU and RF transceiver for reduced system complexity

Robust RF performance with high receive sensitivity

Flexible connectivity options through various serial interfaces

Key Technical Parameters

Frequency: 2.4GHz

Operating temperature: -40°C to 85°C

Supply voltage: 1.8V to 3.6V

Transmit power: 4dBm

Modulation: O-QPSK

Quality and Safety Features

RoHS3 compliant

48-QFN (7x7) package with exposed pad

Compatibility

Supported in various Microchip development kits and tools

Application Areas

Wireless sensor networks

Smart home and building automation

Industrial IoT

Wearable devices

Mesh networking applications

Product Lifecycle

Currently available, no plans for discontinuation

Key Reasons to Choose This Product

Highly integrated solution with MCU and RF transceiver

Optimized for low-power, battery-operated applications

Robust RF performance with high receive sensitivity

Flexible connectivity options through various serial interfaces

Supported by Microchip's extensive development ecosystem

Parts with Similar Specifications

The three parts on the right have similar specifications to Microchip Technology ATSAMR21G18A-MU

Product Attribute ATSAMR21G18A-MU ATSAMR30M18AT-I/RM100 ATSAMR21E18A-MU ATSAMR21G18A-MFT
Part Number ATSAMR21G18A-MU ATSAMR30M18AT-I/RM100 ATSAMR21E18A-MU ATSAMR21G18A-MFT
Manufacturer Microchip Technology Microchip Technology Microchip Technology Microchip Technology
Serial Interfaces I²C, SPI, UART, USART, USB ADC, I²C, USB I²C, SPI, UART, USART, USB I²C, SPI, UART, USART, USB
Supplier Device Package 48-QFN (7x7) Module 32-QFN (5x5) 48-QFN (7x7)
Mounting Type Surface Mount - Surface Mount Surface Mount
Power - Output 4dBm - 4dBm 4dBm
Base Product Number ATSAMR21 ATSAMR30 ATSAMR21 ATSAMR21
Protocol - 6LoWPAN, Zigbee® - -
Voltage - Supply 1.8V ~ 3.6V 1.8V ~ 3.6V 1.8V ~ 3.6V 1.8V ~ 3.6V
Memory Size 256kB Flash, 32kB SRAM 256kB Flash, 40kB RAM 256kB Flash, 32kB SRAM 256kB Flash, 32kB SRAM
Type TxRx + MCU TxRx + MCU TxRx + MCU TxRx + MCU
RF Family/Standard General ISM > 1GHz 802.15.4 General ISM > 1GHz General ISM > 1GHz
Frequency 2.4GHz 700MHz, 800MHz, 900MHz 2.4GHz 2.4GHz
Current - Receiving 11.3mA ~ 11.8mA - 11.3mA ~ 11.8mA 11.3mA ~ 11.8mA
GPIO 28 16 16 28
Modulation O-QPSK - O-QPSK O-QPSK
Sensitivity -99dBm - -99dBm -99dBm
Series SMART™ SAM R21 - SMART™ SAM R21 SMART™ SAM R21
Current - Transmitting 7.2mA ~ 13.8mA - 7.2mA ~ 13.8mA 7.2mA ~ 13.8mA
Package / Case 48-VFQFN Exposed Pad 25-SMD Module 32-VFQFN Exposed Pad 48-VFQFN Exposed Pad
Operating Temperature -40°C ~ 85°C - -40°C ~ 85°C -40°C ~ 125°C
Package Tray Tape & Reel (TR) Tray Tape & Reel (TR)
Data Rate (Max) 250kbps - 250kbps 250kbps

ATSAMR21G18A-MU Datasheet PDF

Download ATSAMR21G18A-MU pdf datasheets and Microchip Technology documentation for ATSAMR21G18A-MU - Microchip Technology.

Datasheets
ATSAMR21E,G Summary.pdf
PCN Packaging
MBB/Label Chgs 16/Nov/2018.pdf Transfer to Microchip/Label/Pkg 5/Sep/2016.pdf
PCN Design/Specification
Marking Chgs 11/Jul/2017.pdf
PCN Assembly/Origin
Final Test Site 09/May/2022.pdf
HTML Datasheet
SAM R21E,G Datasheet.pdf

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Shipment

Delivery Time

In-stock items can be shipped within 24 hours. Some parts will be arranged for delivery within 1-2 days from the date all items arrive at our warehouse. And Allelco ships order once a day at about 17:00, except Sunday. Once the goods are shipped, the estimated delivery time depends on the shipping methods and Delivery destination. The table below shows are the logistic time for some common countries.

Delivery Cost

  1. Use your express account for shipment if you have one.
  2. Use our account for the shipment. Refer to the table below for the approximate charges.
(Different time frame / countries / package size has different price.)

Delivery Method

  1. Global Common Shipment by DHL / UPS / FedEx / TNT / EMS / SF we support.
  2. Others more shipping ways, please get in touch with your customer manager.

Common Countries Logistic Time Reference
Region Country Logistic Time(Day)
America United States 5
Brazil 7
Europe Germany 5
United Kingdom 4
Italy 5
Oceania Australia 6
New Zealand 5
Asia India 4
Japan 4
Middle East Israel 6
DHL & FedEx Shipment Charges Reference
Shipment charges(KG) Reference DHL(USD$)
0.00kg-1.00kg USD$30.00 - USD$60.00
1.00kg-2.00kg USD$40.00 - USD$80.00
2.00kg-3.00kg USD$50.00 - USD$100.00
Note:
The above table is for reference only. There may have some data bias for the uncontrollable factors.
Contact us if you have any questions.

Payment Support

The payment method can be chosen from the methods shown below: Wire Transfer (T/T, Bank Transfer), Western Union, Credit card, PayPal.

Your Faithful Supply Chain Partner -

Contact us if you have any questions.

  1. Phone
    +00852 9146 4856

Certifications & Memberships

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ATSAMR21G18A-MU Image

ATSAMR21G18A-MU

Microchip Technology
32D-ATSAMR21G18A-MU

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