ATSAML22N17A-AUT

Overview

The ATSAML22N17A-AUT is an ARM Cortex-M0+ microcontroller from the Microchip SAM L22 family, designed for low-power applications. It features a 32-bit architecture with a maximum clock frequency of 32 MHz. The device integrates 128 kB of Flash program memory and 16 kB of SRAM data memory. It operates within a supply voltage range of 1.62 V to 3.63 V and supports an industrial temperature range from -40°C to +85°C. The component is housed in a TQFP-100 package and includes multiple communication interfaces such as I2C, SPI, UART, and USART.

Feature Summary

• Integrates an ARM Cortex-M0+ processor core optimized for code efficiency and low power consumption.
• Includes a high-resolution 12-bit Analog-to-Digital Converter (ADC) with multiple input channels for precise signal acquisition.
• Supports flexible connectivity through standard serial communication peripherals including SPI, I2C, and UART/USART.
• Features hardware security mechanisms and cryptographic accelerators for secure boot and data protection.

Applications

• Smart home appliances and IoT sensor nodes
• Industrial control systems and automation modules
• Medical devices requiring low power operation
• Consumer electronics with display interfaces

Procurement Notes

Verify the specific suffix 'AUT' indicates automotive qualification or extended temperature grading if required by your design specifications. Confirm the package type matches your PCB footprint requirements. Check for RoHS compliance status on the manufacturer's official datasheet before finalizing procurement. Ensure ESD handling procedures are followed during assembly due to moisture sensitivity classification.

Selection Notes

Select this part when a balance of moderate memory capacity and rich peripheral set is needed for cost-sensitive embedded designs. Compare against the ATSAML22J series for smaller packages or the ATSAML22G series for different pin counts. Consider the internal oscillator accuracy if external crystal resources are limited. Evaluate power consumption modes against application duty cycles to ensure battery life targets are met.

Part Context

This component belongs to the SAM L22 family of microcontrollers, which are built around the ARM Cortex-M0+ core. The family is characterized by its focus on ultra-low power performance and integrated analog peripherals. The N-series typically denotes specific memory configurations and package options within the broader SAML22 portfolio, targeting applications that require reliable processing with minimal energy usage.

Replacement Considerations

Direct substitutes within the same family include ATSAML22N16A-AUT (with reduced memory) or ATSAML22N18A-AUT (if higher memory is available). Cross-family replacements like ATSAMD20 or ATSAMD21 offer similar architectures but may differ in power characteristics and peripheral sets. Verify pin compatibility and software library support before swapping components.