Details

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BUY ATSAMD20E17A-MU https://www.utsource.net/itm/p/11249085.html

Parameter	Description	Value
Device	Microcontroller	ATSAMD20E17A-MU
Package	QFN (Quad Flat No-Lead)	48-pin
Operating Voltage	VDD Core Supply	1.62V to 3.63V
Operating Temperature	Industrial Range	-40°C to +85°C
Clock Frequency	CPU Clock	Up to 48 MHz
Flash Memory	Program Memory	256 KB
RAM	Data Memory	32 KB
Analog-to-Digital Converter (ADC)	Resolution	12-bit
Digital-to-Analog Converter (DAC)	Channels	2 x 10-bit
Serial Communication Interfaces	UART, SPI, I2C	6 x USART, 2 x SPI, 2 x I2C
Timers	32-bit Timer/Counter	3 x TC (Timer Counter)
Watchdog Timer	WDT (Watchdog Timer)	Yes
Brownout Detector	BOD (Brownout Detector)	Yes
Low Power Modes	Sleep, Wait, Backup	Yes
GPIO Pins	General Purpose Input/Output	42
Capacitive Touch Sensing	Channels	16
Package Size	Dimensions	7x7 mm
Power Consumption	Active Mode	90 μA/MHz
Power Consumption	Sleep Mode	1.5 μA (with RTC)
Supply Current	Typical at 3.3V, 32 MHz	28.8 mA

Instructions for Use

1. Power Supply:

   • Ensure the VDD core supply is within the range of 1.62V to 3.63V.
   • Connect the VDD pin to the power source and GND to the ground.

2. Clock Configuration:

   • The internal oscillator can be configured for frequencies up to 48 MHz.
   • External crystals or oscillators can also be used for more precise timing.

3. Program Memory:

   • Use a programming tool compatible with the ATSAMD20E17A-MU to upload code to the 256 KB flash memory.

4. Data Memory:

   • The 32 KB RAM can be used for variable storage and program execution.

5. Analog-to-Digital Converter (ADC):

   • Configure the ADC to sample analog signals with 12-bit resolution.
   • Use the appropriate pins for input signals.

6. Digital-to-Analog Converter (DAC):

   • Use the two 10-bit DAC channels to generate analog output signals.

7. Serial Communication:

   • Configure the USART, SPI, and I2C interfaces for serial communication with other devices.
   • Use the appropriate pins for each interface.

8. Timers and Watchdog:

   • Set up the 32-bit timers for various timing applications.
   • Enable the watchdog timer to reset the microcontroller if it becomes unresponsive.

9. Low Power Modes:

   • Implement sleep, wait, and backup modes to reduce power consumption.
   • Use the brownout detector to prevent operation during low voltage conditions.

10. GPIO Configuration:

    • Configure the GPIO pins as inputs or outputs as needed.
    • Use the capacitive touch sensing feature for touch-based user interfaces.

11. Capacitive Touch Sensing:

    • Connect the capacitive touch sensors to the designated pins.
    • Use the built-in library functions to enable and read the touch sensors.

12. Package Handling:

    • Handle the QFN package with care to avoid damage to the pins.
    • Ensure proper soldering techniques are used during assembly.

13. Development Tools:

    • Use development tools such as Atmel Studio or Arduino IDE for programming and debugging.
    • Refer to the datasheet and application notes for detailed information on specific features and configurations.

(For reference only)