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

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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