ATSAMD20J17A-CU

Overview

The ATSAMD20J17A-CU is a 32-bit ARM Cortex-M0+ microcontroller from the SAM D20 family. It features 128KB of Flash program memory and 16KB of SRAM. The device operates at a maximum clock frequency of 48MHz with a supply voltage range of 2.7V to 5.5V. It includes a 12-bit ADC with 20 channels and a 10-bit DAC. The component provides 52 I/O pins and supports interfaces including I2C, SPI, UART, and USART. It is housed in a 64-UFBGA (5x5) package and functions within an operating temperature range of -40°C to 105°C.

Feature Summary

• Integrates an ARM Cortex-M0+ core for efficient code execution
• Includes multiple communication peripherals such as I2C, SPI, and USART
• Features analog conversion capabilities with 20-channel 12-bit ADC and 10-bit DAC

Applications

• Home automation systems
• Consumer electronics devices
• Industrial metering applications

Procurement Notes

Verify the specific suffix 'CU' corresponds to the 64-UFBGA package and commercial temperature grade during sourcing. Confirm RoHS compliance status through official Microchip documentation or authorized distributors. Ensure the ordering part number matches the exact pinout and thermal specifications required for the target PCB design before finalizing procurement.

Selection Notes

Select this component when a balance of moderate flash capacity and extensive analog input channels is required. The wide supply voltage range simplifies power management in 3.3V and 5V systems. Consider the UFBGA package constraints regarding PCB layout complexity and reflow soldering requirements compared to leaded packages.

Part Context

This unit belongs to the SAM D20 series, designed for low-power applications using the ARM Cortex-M0+ architecture. The series emphasizes energy efficiency while maintaining high performance for general-purpose control tasks. The ATSAMD20J17A variant specifically offers 128KB of non-volatile memory suitable for complex firmware implementations.

Replacement Considerations

Cross-reference with other SAM D20 variants like ATSAMD20J17A-CN or ATSAMD20J17A-MUT if different packaging is needed. Verify that substitute parts maintain identical pin compatibility and electrical characteristics for direct replacement.