ATSAMS70Q20B-CN

Overview

The ATSAMS70Q20B-CN is an ARM microcontroller based on the Cortex-M7 core, operating at a maximum clock frequency of 300 MHz. It features 1 MB of program memory and 384 kB of SRAM data RAM within an LFBGA-144 package. The device supports a 32-bit data bus width and includes 114 I/O lines. It integrates 24-channel ADCs with 12-bit resolution and 12-bit DACs. Operating voltage ranges from 1.7 V to 3.6 V, with an analog supply of 3.3 V. The component functions within a temperature range of -40°C to +105°C and utilizes interfaces including SPI, UART/USART, and USB.

Feature Summary

• Integrates a high-performance ARM Cortex-M7 processor core for complex computational tasks.
• Provides extensive connectivity through multiple communication interfaces such as SPI, UART, USART, and USB.
• Includes integrated analog-to-digital and digital-to-analog converters for signal processing applications.

Applications

• Industrial automation control systems
• Human-machine interface (HMI) displays
• Medical equipment requiring precise analog signal handling

Procurement Notes

Verify the specific suffix against official Microchip documentation to confirm package type and temperature grade. Ensure compatibility with required development tools and debuggers. Check for moisture sensitivity levels and storage requirements prior to assembly. Confirm RoHS compliance status if mandated by regional regulations. Validate pinout configurations against target PCB design specifications.

Selection Notes

Select this model when 1 MB flash and 384 kB SRAM are required alongside a 300 MHz Cortex-M7 core. Choose the LFBGA-144 package for designs needing 114 available I/O pins. Consider this part for applications demanding integrated USB and analog peripherals without external components. Evaluate thermal performance within the specified industrial temperature range during system design.

Part Context

This component belongs to the SAM S70 series of microcontrollers manufactured by Microchip Technology. The series is designed for high-performance embedded applications requiring significant processing power and memory capacity. It shares architectural similarities with other devices in the family but differs in memory sizes and package options.

Replacement Considerations

ATSAMS70Q19A-CN offers similar architecture with reduced memory (512 kB Flash, 256 kB SRAM). ATSAMS70Q21A-CN provides increased memory (2 MB Flash, 384 kB SRAM). Verify pin compatibility and software migration efforts before substituting these variants.