ATSAMC21J15A-AUT

Overview

The ATSAMC21J15A-AUT is an ARM microcontroller from the Microchip ATSAMC21 series, featuring an ARM Cortex-M0+ core. It operates at a maximum clock frequency of 48 MHz and supports a supply voltage range of 2.7 V to 5.5 V. The device includes 32 kB of Flash program memory and 4 kB of SRAM data RAM. It provides 52 I/O pins and integrates two 12-bit ADCs with 20 channels, along with a 10-bit DAC. Communication interfaces include LIN, I2C, PMBus, Serial, SPI, and USART. The component is qualified under AEC-Q100 standards and functions within a temperature range of -40°C to +85°C.

Feature Summary

• Automotive-grade reliability certified by AEC-Q100 qualification for robust performance in vehicle environments.
• Integrated dual 12-bit analog-to-digital converters enabling high-precision signal acquisition for sensor applications.
• Supports multiple serial communication protocols including LIN, SPI, and USART for versatile system connectivity.

Applications

• Automotive body control modules requiring AEC-Q100 compliance
• Sensor interface units utilizing multi-channel ADC capabilities
• Industrial controllers employing LIN or PMBus communication

Procurement Notes

Verify the specific suffix AUT indicates the 85°C industrial temperature grade and TQFP-64 package configuration. Confirm AEC-Q100 automotive qualification status matches project requirements. Check for moisture sensitivity labeling as indicated in specifications. Ensure compatibility with 2.7V to 5.5V power domains during integration planning.

Selection Notes

Select this model when automotive certification is mandatory alongside moderate memory requirements. The 32 kB Flash and 4 kB RAM suit lightweight control tasks. Dual ADCs benefit designs needing simultaneous analog input processing. Compare against higher-memory variants if complex algorithms are required. Verify pin count sufficiency for 52 I/O needs.

Part Context

This part belongs to the ATSAMC21 family of 32-bit ARM Cortex-M0+ microcontrollers designed for cost-sensitive and low-power applications. The J-series typically offers enhanced peripheral counts compared to G-series counterparts. The AUT suffix denotes specific packaging and temperature ratings within the broader product line.

FAQ

What is the ADC resolution for the ATSAMC21J15A-AUT?

The device features two 12-bit analog-to-digital converters.

Does this microcontroller support automotive applications?

Yes, it is qualified according to the AEC-Q100 standard.

What is the maximum operating temperature?

The maximum operating temperature is +85°C.