ATSAML22G18A-MUT

Overview

The ATSAML22G18A-MUT is a 32-bit microcontroller based on the ARM Cortex-M0+ core, operating at a maximum frequency of 32 MHz. It integrates 256 KB of flash memory and 32 KB of SRAM within a 48-QFN package. The device supports a supply voltage range of 1.62 V to 3.63 V and includes an internal oscillator. Peripheral interfaces include USB, I2C, SPI, UART/USART, DMA, LCD controller, PWM, WDT, POR, and brown-out detection/reset. It features ten 12-bit ADC channels and thirty-six general-purpose I/O lines.

Feature Summary

• Integrates a low-power ultra-low power (ULP) block for extended battery life in sleep modes.
• Includes a dedicated LCD controller peripheral for display driving applications.
• Supports full-speed USB connectivity alongside standard serial communication interfaces.
• Features hardware acceleration via Direct Memory Access (DMA) for efficient data transfer.

Applications

• Battery-powered wearable devices requiring low standby current
• USB-enabled consumer electronics and peripherals
• Industrial control systems with LCD interface requirements
• Smart home sensors and actuators

Procurement Notes

Verify the specific suffix 'MUT' corresponds to the 48-QFN package and tape-and-reel packaging configuration. Confirm that the operating temperature range meets the application's environmental requirements. Ensure compatibility with the SAM L22 family development tools and software libraries. Check for any recent Product Change Notifications regarding assembly or fabrication site changes.

Selection Notes

Select this component when a balance of moderate flash capacity and integrated USB functionality is required in a compact footprint. Compare against the ATSAML22J series if additional I/O count or ADC channels are necessary. Consider the ATSAML22G18A-AUT variant if a TQFP package is preferred over QFN for board layout constraints.

Part Context

This part belongs to the Microchip SAM L22G series of microcontrollers. These devices are designed for ultra-low power applications using the ARM Cortex-M0+ architecture. The G-series specifically targets cost-sensitive applications with integrated USB and LCD capabilities, distinguishing it from other series in the broader SAM L22 family.

Replacement Considerations

ATSAML22G18A-AUT offers identical functional specifications but utilizes a 48-TQFP package instead of the 48-QFN form factor. No other direct pin-to-pin replacements with different packages are documented in the provided source material.