ATSAMC21E18A-AUT vs ATSAMC20E18A-AUT Comparison
Detailed side-by-side comparison of ATSAMC21E18A-AUT by Microchip Technology and ATSAMC20E18A-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
ATSAMC21E18A-AUT - 48MHz Cortex-M0+ MCU 256KB Flash TQFP-32 | Microchip
ATSAMC21E18A-AUT ✓ ActiveMicrochip Technology
ATSAMC20E18A-AUT - 48MHz Cortex-M0+ MCU 256KB Flash | Microchip
ATSAMC20E18A-AUT ✓ ActiveSpecification Comparison
| Parameter | ATSAMC21E18A-AUT | ATSAMC20E18A-AUT |
|---|---|---|
| Brand | Microchip Technology | Microchip Technology |
| Category | Microcontrollers | Microcontrollers |
| Lifecycle Status | Active | Active |
| Stock Status | In Stock | In Stock |
| Unit Price (USD) | $3.07 | $4.53 |
| Core | ARM Cortex-M0+ (32-bit) | ARM Cortex-M0+ (32-bit) |
| Maximum CPU Clock | 48 MHz | — |
| Program Flash | 256 KB (256K x 8) | — |
| EEPROM Emulation Flash (auxiliary) | 8 KB independent self-programmable | — |
| SRAM | 32 KB | 32 KB |
| Operating Voltage Range | 2.7 V to 5.5 V | — |
| I/O Tolerance | 5 V tolerant | 5 V tolerant |
| SERCOM Modules | Up to 6 (configurable USART/I2C/SPI) | — |
| CAN-FD Controller | Yes | — |
| ADC | 12-bit, up to 16 channels | 12-bit SAR + 16-bit Sigma-Delta |
| Hardware Multiplier | Single-cycle | — |
| Memory Protection Unit (MPU) | Yes | Yes |
| Micro Trace Buffer | Yes | Yes |
| Package | 32-TQFP (7x7 mm) | 32-pin TQFP (7x7 mm) |
| Operating Temperature | -40C to +85C (AUT = automotive/extended grade) | -40 °C to +85 °C (Industrial) |
| Mounting Type | Surface Mount | Surface Mount |
| RoHS Status | Compliant (Green, lead-free per Mouser listing) | Compliant |
| MSL Level | [DATA_NEEDED: MSL rating] | — |
| Maximum CPU Frequency | — | 48 MHz |
| CoreMark per MHz | — | 2.46 CoreMark/MHz |
| Flash Memory | — | 256 KB (in-system programmable) |
| EEPROM Emulation Flash | — | 8 KB (independent bank) |
| Supply Voltage (VDD) | — | 2.7 V to 5.5 V |
| PTC Touch Channels | — | 24-bit Peripheral Touch Controller |
| Communication Peripherals | — | 6x SERCOM (UART/SPI/I2C), CAN-FD |
| Analog Comparators | — | Yes |
| AEC-Q100 Grade | — | Grade 1 |