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ATSAMD21G18A-MF
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Product Detailed Parameters
- Description：IC MCU 32BIT 256KB FLASH 48QFN
- Series：SAM D21G, Functional Safety (FuSa)
- Mfr：Microchip Technology
- Package：Tray
- Core Processor：ARM® Cortex®-M0+
- Core Size：32-Bit Single-Core
- Speed：48MHz
- Connectivity：I2C, LINbus, SPI, UART/USART, USB
- Peripherals：Brown-out Detect/Reset, DMA, I2S, POR, PWM, WDT
- Number of I/O：38
- Program Memory Size：256KB (256K x 8)
- Program Memory Type：FLASH
- EEPROM Size：-
- RAM Size：32K x 8
- Voltage - Supply (Vcc/Vdd)：1.62V ~ 3.6V
- Data Converters：A/D 14x12b; D/A 1x10b
- Oscillator Type：Internal
- Operating Temperature：-40°C ~ 125°C (TA)
- Mounting Type：Surface Mount
- Supplier Device Package：48-QFN (7x7)
- Package / Case：48-VFQFN Exposed Pad
- Grade：Automotive
- Qualification：AEC-Q100
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Overview
The ATSAMD21G18A-MF is a microcontroller unit (MCU) based on the ARM Cortex-M0+ core. It features 256KB of in-system programmable Flash memory and 32KB of SRAM. The device operates at a maximum frequency of 48MHz and supports a supply voltage range of 1.6V to 3.6V. It integrates advanced analog peripherals, including multiple ADCs and a DAC, alongside standard communication interfaces such as SPI, I2C, USART, and USB.
Feature Summary
- ARM Cortex-M0+ processor core for efficient code execution
- Integrated high-speed USB peripheral with full-speed capability
- Advanced analog subsystem with multiple 12-bit ADC channels and a 10-bit DAC
- Comprehensive set of low-power modes for energy-constrained applications
Applications
- Wireless sensor nodes requiring low power consumption
- Portable consumer electronics devices
- Industrial control systems with analog signal processing needs
- USB-enabled embedded peripherals
Procurement Notes
Verify the specific suffix 'MF' against official Microchip documentation to confirm package type and temperature grade. Ensure compatibility with existing board designs regarding pinout and voltage levels. Cross-reference datasheet revisions for any updates to electrical characteristics or recommended operating conditions before finalizing procurement.
Selection Notes
Select this component when an ARM Cortex-M0+ architecture is required for cost-sensitive 32-bit applications. It is suitable for designs needing integrated USB connectivity without external transceivers. Consider its analog capabilities if signal conditioning is needed on-chip. Evaluate power consumption requirements against available low-power modes.
Part Context
This part belongs to the SAM D21 family of microcontrollers from Microchip Technology. The family is designed for low-power, high-performance applications using the Cortex-M0+ core. Variants within the family differ primarily in memory size, package options, and peripheral availability.
Replacement Considerations
Check for direct pin-to-pin replacements within the SAM D21 series, such as ATSAMD21G18A-AU or ATSAMD21G18A-MU, ensuring software compatibility and identical peripheral sets.
