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