ATSAML22J17A-MUT

Overview

The ATSAML22J17A-MUT is a 32-bit ARM Cortex-M0+ microcontroller from the SAM L22 family, housed in a 64-pin VQFN package. It features 128 kB of Flash program memory and 16 kB of SRAM data RAM. The device operates at a maximum clock frequency of 32 MHz with a supply voltage range of 1.62 V to 3.63 V. It provides 50 general-purpose I/O pins and includes an internal oscillator. Connectivity options include I2C, SPI, UART, USART, and USB interfaces. The unit supports a 12-bit ADC with 16 channels and four timer/counters, functioning within a temperature range of -40°C to +85°C.

Feature Summary

• Integrates a Peripheral Touch Controller (PTC) for capacitive touch sensing applications
• Includes a Segment LCD Controller for direct display driving without external graphics processors
• Supports hardware-accelerated AES encryption for secure data processing
• Features advanced analog peripherals including comparators and operational amplifiers

Applications

• Battery-powered wearable devices requiring low power consumption
• Smart home sensors utilizing capacitive touch interfaces
• Portable medical equipment needing secure data transmission
• Industrial control systems with segment LCD displays

Procurement Notes

Verify the specific suffix 'MUT' corresponds to the 64-VQFN package and tape-and-reel packaging configuration as documented in the official Microchip datasheet. Confirm that the operating voltage and temperature ratings align with your system requirements before integration. Ensure compliance with RoHS directives by checking the manufacturer's environmental declaration. Cross-reference the part number against the latest errata sheet to identify any known silicon revisions or functional limitations relevant to your design.

Selection Notes

Select this component when a balance of moderate flash capacity and extensive analog peripherals is required for ultra-low-power designs. The inclusion of both PTC and LCD controllers makes it suitable for user interface-heavy applications. Compare against the ATSAML22G series if fewer I/O pins are acceptable, or consider the ATSAMD20 series if higher clock speeds and wider voltage ranges are necessary for performance-critical tasks.

Part Context

This microcontroller belongs to the SAM L22 family, which targets ultra-low-power applications using the ARM Cortex-M0+ core. The J-series designation typically indicates specific memory configurations and peripheral sets within the lineup. It is designed for cost-sensitive, battery-operated devices where energy efficiency and integrated touch/lcd capabilities reduce bill-of-materials complexity.

Replacement Considerations

ATSAML22J16A-MUT offers similar functionality with reduced flash memory capacity.