ATSAMS70Q21B-AN

Overview

The ATSAMS70Q21B-AN is an ARM microcontroller within the SAM S70 series, featuring an ARM Cortex-M7 core operating at a maximum clock frequency of 300 MHz. It integrates 2 MB of program memory and 384 kB of SRAM data RAM. The device utilizes a 32-bit data bus width and offers 114 I/O lines in an LQFP-144 package. Key peripherals include 24 ADC channels with 12-bit resolution and 12-bit DAC resolution. It supports interfaces such as SPI, UART/USART, and USB. The unit operates between 1.7 V and 3.6 V, with an analog supply voltage of 3.3 V, across a temperature range of -40°C to +105°C.

Feature Summary

• High-performance processing via ARM Cortex-M7 core running up to 300 MHz
• Integrated substantial non-volatile storage with 2 MB Flash and 384 kB SRAM
• Extensive connectivity through multiple communication interfaces including USB and serial protocols
• Precision analog signal handling with 12-bit ADC and DAC capabilities

Applications

• Industrial automation control systems
• Human-machine interface (HMI) displays
• Medical equipment requiring high-speed data processing
• Automotive infotainment and instrument clusters

Procurement Notes

Verify the specific suffix AN corresponds to the LQFP-144 package configuration before procurement. Confirm that the required interface set matches the official datasheet specifications for this exact part number. Ensure environmental ratings align with the intended operational temperature range. Cross-reference the manufacturer's latest documentation to confirm component availability and any potential obsolescence notices.

Selection Notes

Select this model when a balance of high computational throughput and extensive peripheral integration is required. The 2 MB Flash capacity suits complex firmware applications without external memory. The 114 I/O count provides flexibility for diverse connection requirements. Consider the LQFP-144 package for surface-mount assembly compatibility. Evaluate power consumption against the 1.7 V to 3.6 V operating range constraints.

Part Context

This component belongs to the Microchip SAM S70 family, designed for high-performance embedded applications. It shares architectural similarities with other Cortex-M7 based MCUs but distinguishes itself through specific memory sizes and peripheral sets. The SAM S70 series targets demanding industrial and automotive sectors requiring robust real-time processing capabilities.

Replacement Considerations

Consult official substitution lists for equivalent performance levels. Verify pin-to-pin compatibility if replacing existing designs. Check for differences in memory size or peripheral availability in alternative models.