MCHPATSAMD51J20A-AU
Overview
The ATSAMD51J20A-AU is a high-performance 32-bit microcontroller based on the ARM Cortex-M4F core with a dedicated hardware Floating Point Unit (FPU). Running at up to 120MHz, it features 1024KB of Flash memory and 256KB of RAM, providing the computational overhead required for complex digital signal processing and real-time control.
Why Choose This Part
This MCU offers a robust peripheral set including a Peripheral Touch Controller (PTC) and hardware encryption engines (AES, SHA) without sacrificing low-power efficiency. The 120MHz clock speed and large 1024KB Flash capacity allow for sophisticated firmware stacks and extensive data logging capabilities.
Applications
Getting Started
Development is primarily supported through Microchip Studio and the MPLAB X IDE using the Harmony v3 framework or Advanced Software Framework (ASF). For hardware evaluation, the SAM D51 Curiosity Nano or the SAM E54 Explained Pro boards are the standard entry points for this architecture.
Dev Boards
Development boards and breakout modules featuring the ATSAMD51J20A-AU or compatible chips — ready to use for prototyping.
ATSAMD51J Family
Comparing specs that differ across variants. The current part is highlighted.
| Part Number | Package | Temp Range | Stock |
|---|---|---|---|
| ATSAMD51J20A-AU (this part) | — | — | 934 |
| ATSAMD51J19A-MUT | VFQFN-64 | -40degC ~ 85degC (.. | 2,474 |
| ATSAMD51J19A-AU | TQFP-64 | -40degC ~ 85degC (.. | — |
| ATSAMD51J19A-MFT | VFQFN-64 | -40degC ~ 125degC .. | 2,820 |
Also Consider
STMicroelectronics
- An alternative Cortex-M4 solution with similar 168MHz performance and a wide ecosystem of middleware.
