ATSAMD20G18A-ANT vs ATSAMD21G18A-AU Comparison
Detailed side-by-side comparison of ATSAMD20G18A-ANT by Microchip Technology and ATSAMD21G18A-AU 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
ATSAMD20G18A-ANT - ARM Cortex-M0+ 48MHz 256KB Flash MCU | Microchip
ATSAMD20G18A-ANT β ActiveMicrochip Technology
ATSAMD21G18A-AU - 48MHz Cortex-M0+ MCU 256KB Flash | Microchip
ATSAMD21G18A-AU β ActiveSpecification Comparison
| Parameter | ATSAMD20G18A-ANT | ATSAMD21G18A-AU |
|---|---|---|
| Brand | Microchip Technology | Microchip Technology |
| Category | Microcontrollers | Microcontrollers |
| Lifecycle Status | Active | Active |
| Stock Status | In Stock | In Stock |
| Unit Price (USD) | $2.55 | $2.23 |
| Core Architecture | ARM Cortex-M0+ (32-bit) | β |
| Maximum CPU Frequency | 48 MHz | β |
| CoreMark/MHz | 2.46 | β |
| Program Memory (Flash) | 256 KB (256K x 8) | β |
| Data Memory (SRAM) | 32 KB | β |
| Operating Voltage Range | 1.62 V to 3.63 V | β |
| Package | 48-pin TQFP (7 x 7 mm) | 48-TQFP (7x7 mm) |
| Mounting Type | Surface Mount | Surface Mount |
| Operating Temperature Range | -40 C to +105 C | β |
| ADC | 12-bit, up to 1 MSPS, up to 20 channels | β |
| USB Interface | USB 2.0 Full-Speed Device with on-chip transceiver | β |
| SERCOM Modules | 6 (configurable as UART / SPI / I2C) | β |
| I2C Interfaces | 2 | β |
| Timers/Counters | Six 16-bit TC channels | β |
| RTC | 16-bit RTC with calendar mode | β |
| RoHS Status | Compliant | Compliant (green package) |
| Lead-Free / Halogen-Free | Yes (per Mouser GREEN marking) | β |
| Core Processor | β | ARM Cortex-M0+ |
| Core Size | β | 32-Bit |
| Maximum Clock Frequency | β | 48 MHz |
| Flash Memory | β | 256 KB (256K x 8) |
| SRAM | β | 32 KB |
| Supply Voltage Range | β | 1.62 V to 3.63 V |
| Performance | β | 2.46 CoreMark/MHz |
| DMA Channels | β | 12 |
| Event System Channels | β | 12 |
| Timer/Counters | β | Up to 5 x 16-bit TC |
| Serial Interfaces | β | SERCOM (USART, SPI, I2C) |
| ADC Resolution | β | 12-bit |
| DAC | β | Yes |
| Capacitive Touch | β | Buttons, sliders, wheels supported |
| Debug Interface | β | 2-pin Serial Wire Debug (SWD) |
| Series | β | SAM D21G, Functional Safety (FuSa) |
| Operating Temperature | β | [DATA_NEEDED: operating temperature range] |