ATSAML22G16A-AUT

Overview

The ATSAML22G16A-AUT is an ARM Cortex-M0+ microcontroller from the SAML22 family, housed in a 48-TQFP package. It features 64 kB of Flash program memory and 8 kB of SRAM data RAM. The device operates on a supply voltage range of 1.62 V to 3.63 V with a maximum clock frequency of 32 MHz. It provides 36 general-purpose I/Os and includes a 10-channel, 12-bit ADC. Supported interfaces include I2C, SPI, UART, and USART. The component is rated for industrial temperatures between -40°C and +85°C.

Feature Summary

• Integrates an ARM Cortex-M0+ processor core for efficient code execution
• Includes hardware peripherals such as DMA, LCD controller, and PWM modules
• Supports multiple communication protocols including USB, I2C, SPI, and UART/USART

Applications

• Low-power consumer electronics requiring small form factors
• Industrial control systems operating within extended temperature ranges
• Battery-powered devices utilizing low-voltage operation capabilities

Procurement Notes

Verify the specific suffix 'AUT' confirms the -40°C to +85°C industrial temperature grade and TQFP-48 packaging. Confirm RoHS compliance status through official Microchip documentation. Ensure ESD handling procedures are followed due to moisture sensitivity classification. Cross-reference the datasheet revision to verify pinout compatibility with existing designs.

Selection Notes

Select this model when 64 kB of Flash and 8 kB of RAM suffice for application logic. Choose the TQFP-48 package if surface-mount leaded pins are preferred over QFN alternatives. Consider the SAML22G variant specifically for its balance of peripheral count and memory size. Verify that the 32 MHz processing speed meets real-time control requirements.

Part Context

This component belongs to the Microchip SAM L22 series, designed for ultra-low power applications. The G-series variants typically offer a balanced set of peripherals suitable for general-purpose microcontroller tasks. It shares architectural similarities with other SAML22 parts but differs in memory capacity and package options.

Replacement Considerations

ATSAML22G16A-MUT offers identical electrical specifications but utilizes a 48-QFN package instead of TQFP. ATSAML22J16A-AUT provides the same memory and core but includes additional I/Os in a 64-TQFP package.