ATSAMD20E17A-MN

Overview

The ATSAMD20E17A-MN is an ARM microcontroller from the SAMD2x family, featuring an ARM Cortex-M0+ core with a maximum clock frequency of 48 MHz. It integrates 128 kB of Flash program memory and 16 kB of SRAM data RAM. The device operates within a supply voltage range of 1.62 V to 3.63 V and supports an industrial temperature range from -40°C to +105°C. It provides 26 general-purpose I/O pins and includes a 12-bit ADC with 10 channels. Communication interfaces include I2C, SPI, UART, and USART. The component is housed in a QFN-32 package.

Feature Summary

• High-performance 48 MHz ARM Cortex-M0+ processor
• Integrated 128 kB non-volatile Flash and 16 kB SRAM
• Extended industrial temperature rating up to 105°C
• Multiple communication peripherals including I2C, SPI, and UART

Applications

• Industrial control systems requiring extended temperature operation
• Battery-powered devices utilizing low-voltage operation
• Sensor interface modules using ADC capabilities
• Embedded applications needing serial communication protocols

Procurement Notes

Verify the specific suffix 'MN' corresponds to the QFN-32 package and +105°C operating temperature range during procurement. Confirm that the required voltage range (1.62 V to 3.63 V) matches the target system design. Ensure compatibility with the 26 available I/O pins for the intended application layout. Check for moisture sensitivity level requirements if the component has been stored for extended periods before assembly.

Selection Notes

Select this model when an industrial temperature range (-40°C to +105°C) is mandatory for the application environment. Choose this part over lower-temperature variants if the system will experience high ambient heat. Consider the 128 kB Flash size for firmware complexity and the 26 I/O count for peripheral connectivity needs. Verify that the QFN-32 package footprint fits the PCB design constraints compared to TQFP alternatives.

Part Context

This component belongs to the Microchip SAMD2x series of 32-bit ARM Cortex-M0+ microcontrollers. It shares architectural similarities with other SAMD20 variants but is distinguished by its specific package and temperature rating. The SAMD2x family is designed for cost-sensitive applications requiring moderate performance and low power consumption. This specific part number represents a variant optimized for industrial environments with a compact QFN form factor.

Replacement Considerations

ATSAMD20E17A-AU offers similar specifications but in a TQFP-32 package with an 85°C temperature range. ATSAMD20J17A-AUT provides more I/O pins in a TQFP-64 package. ATSAMD20E15A-MUT features reduced memory sizes (32 kB Flash, 4 kB SRAM). Verify pinout compatibility and thermal characteristics when substituting.