ATSAMC20G18A-ANT

Overview

The ATSAMC20G18A-ANT is a Microchip Technology ARM microcontroller based on the Cortex-M0+ core. It features 256 kB of Flash program memory and 32 kB of SRAM data memory. The device operates with a maximum clock frequency of 48 MHz and supports a supply voltage range from 2.7 V to 5.5 V. It includes 14-channel 12-bit ADCs, multiple timers, and interfaces such as I2C, SPI, UART, and USART. The component is housed in a 48-pin TQFP package and is rated for an operating temperature range of -40°C to +85°C.

Feature Summary

• Integrates a 32-bit ARM Cortex-M0+ processor core for efficient code execution.
• Provides extensive analog capabilities with 14-channel 12-bit analog-to-digital converters.
• Supports versatile communication protocols including I2C, SPI, UART, and USART.
• Features robust memory configuration with 256 kB Flash and 32 kB SRAM.

Applications

• Industrial control systems requiring 5V operation
• Consumer electronics with low power constraints
• General-purpose embedded applications using serial communication

Procurement Notes

Verify the specific suffix ANT corresponds to the 48-TQFP package and industrial temperature grade when sourcing. Confirm RoHS compliance status through official Microchip documentation or authorized distributor datasheets prior to procurement. Ensure the ordering part number matches the exact pinout and electrical specifications required for the target design.

Selection Notes

Select this model for designs requiring native 5V tolerance without external level shifting. Compare against the ATSAMD20 series if lower voltage operation (1.62V–3.63V) is sufficient, as the SAMD variant may offer different thermal ratings. Verify that the 48MHz clock speed meets the processing requirements for the intended application logic.

Part Context

This component belongs to the ATSAMC20 family, which is designed for automotive and industrial applications with AEC-Q100 qualification options. It shares architectural similarities with the ATSAMD20 series but differs in voltage tolerance and peripheral availability. The G18A designation indicates specific memory sizes and pin counts within the SAM C20 portfolio.

Replacement Considerations

ATSAMD20G18A-AU offers similar memory and core specs but operates at lower voltages. ATSAMC20G18A-MUT provides identical functionality in a QFN-48 package. Cross-reference datasheets for pin compatibility and voltage domain differences before substitution.