ATSAMD20J14B-AU

Overview

The ATSAMD20J14B-AU is a Microchip Technology ARM microcontroller featuring an ARM Cortex-M0+ core. It operates at a maximum clock frequency of 48 MHz and includes 16 kB of Flash program memory and 2 kB of SRAM data RAM. The device provides 52 I/O pins within a TQFP-64 package. Key peripherals include a 12-bit ADC with 20 channels, a 10-bit DAC, and interfaces such as I2C, SPI, and USART. It supports a supply voltage range of 1.62 V to 3.63 V and functions within an industrial temperature range of -40°C to +85°C.

Feature Summary

• Integrates an ARM Cortex-M0+ processor for efficient code execution in low-power applications.
• Provides extensive analog connectivity through multiple high-resolution ADC channels and a DAC output.
• Supports standard serial communication protocols including I2C, SPI, and USART for peripheral interfacing.

Applications

• Industrial control systems requiring robust peripheral integration
• Consumer electronics utilizing low-power embedded processing
• Sensor interface modules leveraging high-resolution analog-to-digital conversion

Procurement Notes

Verify the specific suffix against official Microchip documentation to confirm package type and temperature grade. Ensure compatibility with required voltage levels and interface standards before integration. Cross-reference the manufacturer part number with authorized distributor listings to validate authenticity and current production status.

Selection Notes

Select this component when a balance of moderate memory capacity and high pin count is required for compact designs. The 48 MHz speed suits general-purpose control tasks without excessive power consumption. Consider the available I/O resources and analog channel count relative to system sensor requirements.

Part Context

This unit belongs to the SAMD20 family of 32-bit ARM-based microcontrollers. The series targets cost-sensitive applications needing reliable performance and rich peripheral sets. The J-series designation typically indicates specific memory and package configurations within the broader product line.

FAQ

What is the maximum operating frequency of the ATSAMD20J14B-AU?

The device supports a maximum clock frequency of 48 MHz.

Does this microcontroller include digital-to-analog conversion capabilities?

Yes, it features a 10-bit Digital-to-Analog Converter (DAC).