MCHPATSAMD21J15B-MFT
Overview
The ATSAMD21J15B-MFT is a high-performance, low-power 32-bit ARM Cortex-M0+ based microcontroller featuring 32KB of Flash and 4KB of SRAM. This specific variant operates at up to 48MHz and is housed in a 64-pin QFN package rated for extended temperature ranges up to 125C. It integrates versatile serial communication modules and a high-resolution analog interface for precise mixed-signal applications.
Why Choose This Part
This MCU offers an excellent balance of high pin density and low power consumption, making it ideal for compact designs requiring many I/O lines. The 125C industrial temperature rating ensures stability in automotive and factory floor environments where standard 85C parts may fail. It also features the Event System, which allows peripherals to communicate without CPU intervention, reducing latency and power draw.
Applications
Getting Started
Development is primarily supported through Microchip Studio and the MPLAB X IDE using the XC32 compiler. Engineers can utilize the Atmel Software Framework (ASF) or Harmony for rapid driver integration and middleware deployment. For hardware debugging, use an Atmel-ICE or Power Debugger connected via the SWD interface.
Dev Boards
Development boards and breakout modules featuring the ATSAMD21J15B-MFT or compatible chips — ready to use for prototyping.
SAMD21J Family
| Part Number | Difference | Stock |
|---|---|---|
| ATSAMD21J18A-AFT | TQFP-64 · 256KB Flash | 15,486 |
| ATSAMD21J17D-AZVAO | 7D-AZVAO | 295 |
| ATSAMD21J17D-MZVAO | 7D-MZVAO | 240 |
| ATSAMD21J16B-AZVAO | 6B-AZVAO | 319 |
| ATSAMD21J18A-AZVAO | 8A-AZVAO | 286 |
| ATSAMD21J18A-MUT | 8A-MUT | 13,536 |



