ATSAMD20E18A-AU vs ATSAMC21E17A-AUT Comparison
Detailed side-by-side comparison of ATSAMD20E18A-AU by Microchip Technology and ATSAMC21E17A-AUT by Microchip Technology. Compare key specifications, electrical parameters, packaging, lifecycle status, pricing, and availability to determine the best component for your design requirements.
Microchip Technology
ATSAMD20E18A-AU - ARM Cortex-M0+ MCU 256KB Flash 32-TQFP | Microchip
ATSAMD20E18A-AU ✓ ActiveMicrochip Technology
ATSAMC21E17A-AUT - 48MHz Cortex-M0+ 128KB MCU | Microchip
ATSAMC21E17A-AUT ✓ ActiveSpecification Comparison
| Parameter | ATSAMD20E18A-AU | ATSAMC21E17A-AUT |
|---|---|---|
| Brand | Microchip Technology | Microchip Technology |
| Category | Microcontrollers | Microcontrollers |
| Lifecycle Status | Active | Active |
| Core | ARM Cortex-M0+ | — |
| Core Width | 32-bit | — |
| Maximum Clock Frequency | 48 MHz | — |
| Program Memory Size (Flash) | 256 KB (256K x 8) | — |
| RAM Size | 32 KB | — |
| Supply Voltage Range | 1.62 V to 3.63 V | — |
| Operating Temperature Range | -40 C to +85 C (industrial) | — |
| Package | 32-TQFP 7x7 mm | 32-TQFP (7x7 mm) |
| Mounting Type | Surface Mount | Surface Mount |
| Number of I/O Pins | 26 (max) | — |
| ADC | 12-bit, 350 ksps, up to 14 channels | 12-bit, up to 1 Msps |
| DAC | 10-bit, 350 ksps, 1 channel | — |
| Communication Interfaces | SERCOM (UART/SPI/I2C) x6, USB 2.0 Full-Speed Device, I2S | — |
| Peripheral Touch Controller (PTC) | Yes (buttons, sliders, wheels) | — |
| MSL Level | 3 (168 hours) | 3 |
| RoHS Status | Compliant | Compliant |
| Lead-Free / Halogen-Free | Lead-free, Halogen-free per Microchip | — |
| Core Architecture | — | ARM Cortex-M0+ (32-bit) |
| Series | — | SAM C21 (5V Cortex-M0+ with CAN-FD) |
| Maximum Clock Speed | — | 48 MHz |
| Flash Memory | — | 128 KB (128K x 8) |
| SRAM | — | 16 KB |
| Operating Voltage | — | 2.7V to 5.5V |
| I/O Voltage Tolerance | — | 5V native |
| Operating Temperature | — | -40C to +85C (industrial) |
| CAN-FD | — | Yes (1 channel) |
| SERCOM Modules | — | Up to 6 (configurable UART/SPI/I2C) |
| PTC (Touch Controller) | — | Yes, supports capacitive touch |
| DMA Channels | — | 6 |
| Functional Safety (FuSa) | — | Yes (CRC, WWDT, dual BOD, DSU) |