ATSAMD21G18A-UUT
- Mfr.Part #
- ATSAMD21G18A-UUT
- Manufacturer
- Microchip Technology
- Package / Case
- 45-XFBGA, WLCSP
- Datasheet
- Download
- Description
- IC MCU 32BIT 256KB FLASH 45WLCSP
- Stock
- 3,192
- In Stock :
- 3,192
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- Manufacturer :
- Microchip Technology
- Product Category :
- Microcontrollers
- Series :
- SAM D21G
- DMA Channels :
- yes
- Program Memory Type :
- Flash
- Data Converters :
- A/D 14x12b, D/A 1x10b
- Factory Lead Time :
- 2 Weeks
- Mount :
- Surface Mount
- Core Size :
- 32-Bit
- Terminal Form :
- Ball
- Width :
- 2.699 mm
- Manufacturer :
- Microchip Technology Inc
- Number of I/O Lines :
- 35
- Moisture Sensitivity Level (MSL) :
- 3 (168 Hours)
- Base Part Number :
- ATSAMD21G18
- Seated Height-Max :
- 0.483 mm
- Bit Size :
- 32
- Number of Timers/Counters :
- 6
- Pbfree Code :
- yes
- Reach Compliance Code :
- Compliant
- Operating Supply Voltage :
- 3.3V
- Data Converter :
- A/D 14x12b; D/A 1x10b
- ROM Programmability :
- Flash
- Peripherals :
- Brown-out Detect/Reset, DMA, I2S, POR, PWM, WDT
- Terminal Pitch :
- 0.4mm
- Number of Terminals :
- 45
- Base Product Number :
- ATSAMD21
- Device Core :
- ARM Cortex M0+
- RAM Size :
- 32K x 8
- Speed :
- 48MHz
- uPs/uCs/Peripheral ICs Type :
- MICROCONTROLLER, RISC
- Package / Case :
- 45-XFBGA, WLCSP
- Temperature Grade :
- Industrial
- JESD-30 Code :
- R-PBGA-B45
- Number of I/O :
- 38
- Contact Plating :
- Tin
- Frequency :
- 48MHz
- Oscillator Type :
- Internal
- DAC Channels :
- yes
- Product Status :
- Active
- Core Architecture :
- ARM
- PWM Channels :
- yes
- Operating Temperature :
- -40°C~85°C TA
- Published :
- 2008
- Package :
- Tape and Reel (TR);Cut Tape (CT);Digi-Reel®;
- RoHS Status :
- ROHS3 Compliant
- Program Memory Size :
- 256KB 256K x 8
- Connectivity :
- I2C, LINbus, SPI, UART/USART, USB
- Has ADC :
- yes
- Mounting Type :
- Surface Mount
- Supply Voltage :
- 3.3V
- Memory Size :
- 256KB
- Number of Terminations :
- 45
- Voltage - Supply (Vcc/Vdd) :
- 1.62V~3.6V
- Height Seated (Max) :
- 0.483mm
- Length :
- 2.944mm
- Supplier Device Package :
- 45-WLCSP
- Packaging :
- Tape and Reel (TR)
- Number of Pins :
- 45
- Data Bus Width :
- 32b
- REACH SVHC :
- No SVHC
- Terminal Position :
- BOTTOM
- Interface :
- I2C, I2S, LIN, SPI, UART, USART, USB
- Interfaces :
- I2C/LIN/SPI/USART/US
- EEPROM Size :
- --
- Watchdog Timer :
- yes
- Surface Mount :
- yes
- Package Shape :
- RECTANGULAR
- Core Processor :
- ARM® Cortex®-M0+
- Datasheets
- ATSAMD21G18A-UUT
ATSAMD21G18A-UUT Documents

Microcontrollers Microchip Technology ATSAMD21G18A-UUT Overview
The ATSAMD21G18A-UUT by Microchip Technology is a powerful microcontroller unit (MCU) tailored for sophisticated applications that require low power consumption, robust performance, and extensive integration capabilities. This MCU, built on a 32-bit ARM Cortex-M0+ processor, features 256KB of flash memory and is housed in a compact 45-WLCSP package, making it ideal for space-constrained applications. As part of the Microcontrollers category, this product not only delivers high-performance processing but also integrates advanced peripherals to support a wide range of functionalities, ensuring optimal efficiency and flexibility in design.
ATSAMD21G18A-UUT Features
The ATSAMD21G18A-UUT MCU includes several distinctive features that enhance its applicability across diverse sectors. Notably, it supports up to 256KB of flash memory and 32KB of SRAM, which is crucial for data-intensive operations. The MCU operates with a maximum frequency of 48 MHz, providing the necessary computational speed for complex algorithms. Additional features such as its full-speed USB interface, multiple serial communication modules (SERCOM), and extensive I/O capabilities make it exceptionally versatile for integrating into various digital environments.
ATSAMD21G18A-UUT Applications
- Wearable Devices: In wearables, the ATSAMD21G18A-UUT's low power consumption and small form factor enable long battery life and compact designs, ideal for fitness trackers and smartwatches.
- Smart Home Automation: This MCU can serve as the brain for smart home devices, facilitating wireless connectivity and sensor integration for smart thermostats, lighting systems, and security devices.
- Industrial Automation: Its robust processing capabilities and extended temperature range make the ATSAMD21G18A-UUT suitable for industrial control systems, where reliability and precision are critical.
- Medical Devices: Used in medical monitoring systems, the MCU's accuracy in data handling ensures reliable performance in critical health care applications.
- IoT Devices: The ATSAMD21G18A-UUT is ideal for Internet of Things (IoT) devices, supporting efficient communication and processing needed for IoT gateways and end devices.
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