ATSAML22G17A-MUT

Overview

The ATSAML22G17A-MUT is a 32-bit ARM Cortex-M0+ microcontroller from the Microchip SAM L22 series. It features 128 kB of Flash program memory and 16 kB of SRAM data memory, operating at a maximum clock frequency of 32 MHz. The device supports a supply voltage range of 1.62 V to 3.63 V and includes 36 general-purpose I/Os. Key peripherals include a 10-channel 12-bit ADC, USB interface, DMA controller, LCD driver, and standard communication interfaces such as I2C, SPI, UART, and USART. It is housed in a 48-VQFN package with an exposed pad.

Feature Summary

• Integrated USB full-speed controller for connectivity applications
• Built-in LCD controller supporting segment or graphic displays
• Direct Memory Access (DMA) engine for efficient peripheral-to-memory transfers
• Low-power architecture with multiple sleep modes and wake-up sources

Applications

• USB-enabled wearable devices and health monitors
• Smart home sensors and actuators
• Industrial control panels with local display interfaces
• Battery-powered IoT nodes requiring low power consumption

Procurement Notes

Verify the complete part number against official Microchip documentation to ensure correct suffixes for temperature grade and packaging. Confirm RoHS compliance status through current datasheets. Check for any Product Change Notifications (PCNs) regarding assembly sites or material changes that may affect qualification. Ensure ESD handling procedures are followed during storage and installation.

Selection Notes

Select this component when a balance of moderate memory capacity and integrated USB functionality is required within a compact footprint. Compare against the ATSAML22J series if higher pin counts or additional ADC channels are needed. Evaluate the ATSAML22G16A variant if reduced memory size suffices for the application. Consider the ATSAML22G18A if larger Flash and RAM resources are necessary.

Part Context

This MCU belongs to the SAM L22 family, designed for ultra-low power performance using the ARM Cortex-M0+ core. The G-series designation indicates a specific pin count and peripheral set optimized for cost-sensitive applications. It shares architectural similarities with other SAML22 variants but differs in memory size and I/O availability.

Replacement Considerations

ATSAML22G16A-MUT offers lower memory specifications. ATSAML22G18A-MUT provides increased Flash and RAM capacity. ATSAML22J17A-MUT features a different package and higher I/O count.