ATSAML22J16A-AUT

Overview

The ATSAML22J16A-AUT is a 32-bit microcontroller based on the ARM Cortex-M0+ core, operating at a maximum frequency of 32MHz. It features 64KB of in-system programmable Flash memory and 8KB of SRAM. The device supports a supply voltage range of 1.62V to 3.63V and includes an internal oscillator. Connectivity options include I2C, SPI, UART/USART, and USB interfaces. It provides 50 general-purpose I/Os and integrates peripherals such as DMA, LCD controller, PWM, and watchdog timer. The component is housed in a 64-TQFP package with dimensions of 10x10mm.

Feature Summary

• Integrates ARM Cortex-M0+ processor for efficient code execution
• Includes built-in USB interface for communication capabilities
• Features integrated LCD controller for display applications
• Supports direct memory access for peripheral data transfer

Applications

• USB-enabled embedded control systems
• Industrial devices requiring low-voltage operation
• Consumer electronics with display interfaces
• Battery-powered IoT nodes

Procurement Notes

Verify the specific suffix 'AUT' corresponds to the automotive temperature grade (-40°C to +85°C) as defined by Microchip Technology. Confirm the package type is 64-TQFP (10x10mm). Ensure compatibility with required voltage levels (1.62V-3.63V) and check for any recent Product Change Notifications regarding marking or fabrication sites.

Selection Notes

Select this model when 64KB Flash and 8KB RAM are sufficient for application logic. Choose over ATSAML22G16A-AUT if 50 I/Os and USB connectivity are required instead of 36 I/Os without USB. Consider ATSAML22J18A-AUT if larger memory capacity is needed. Verify that the 32MHz clock speed meets timing requirements.

Part Context

This part belongs to the SAM L22J series within the Microchip SAML22 family. It shares the same core architecture and peripheral set as other J-series variants but differs in memory size and package options. It is designed for cost-sensitive applications requiring USB functionality and low power consumption.

Replacement Considerations

ATSAML22J16A-MUT offers identical electrical specifications in a 64-QFN package. ATSAML22J18A-AUT provides increased memory in the same TQFP package. Cross-referencing pinouts and software compatibility is recommended when substituting.