MCHPATSAMD21E18A-AZVAO
Overview
The ATSAMD21E18A-AZVAO is an automotive-qualified 32-bit ARM Cortex-M0+ microcontroller designed for high-reliability applications. This specific variant features 256KB of Flash memory, operates at speeds up to 48MHz, and is rated for AEC-Q100 Grade 1 temperatures up to 125 degrees Celsius.
Why Choose This Part
This MCU offers a high-performance 32-bit core with extremely low power consumption in a compact 32-pin TQFP package. Its integration of a 12-bit ADC and a dedicated hardware touch controller allows for sophisticated analog sensing without taxing the CPU.
Applications
Getting Started
Engineers should use the Microchip Studio IDE or MPLAB X combined with the XC32 compiler for firmware development. The SAM D21 Xplained Pro evaluation kit provides a hardware platform for rapid prototyping and debugging via the integrated Atmel-ICE interface.
Dev Boards
Development boards and breakout modules featuring the ATSAMD21E18A-AZVAO or compatible chips — ready to use for prototyping.
SAMD21E Family
Comparing specs that differ across variants. The current part is highlighted.
| Part Number | RAM | Package | Flash | Temp Range | Stock |
|---|---|---|---|---|---|
| ATSAMD21E18A-AZVAO (this part) | — | — | — | — | 199 |
| ATSAMD21E18A-MUT | 32K | VFQFN-32 | 256KB | -40degC ~ 85degC (.. | 24,578 |
| ATSAMD21E18A-AUT | 32K | TQFP-32 | 256KB | -40degC ~ 85degC (.. | 11,120 |
| ATSAMD21E18A-AFT | 32K | TQFP-32 | 256KB | -40degC ~ 125degC .. | 11,484 |
| ATSAMD21E15B-AFT | 4K | TQFP-32 | 32KB | -40degC ~ 125degC .. | 2,970 |
| ATSAMD21E18A-AU (Microchip) | 32K | TQFP-32 | 256KB | -40degC ~ 85degC (.. | 1,742 |
| ATSAMD21E17A-AUT | 16K | TQFP-32 | 128KB | -40degC ~ 85degC (.. | 2,730 |



