ATSAMD20G17A-AU vs ATSAMD21G18A-AU Comparison
Detailed side-by-side comparison of ATSAMD20G17A-AU 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
ATSAMD20G17A-AU - 48MHz Cortex-M0+ MCU, 128KB Flash | Microchip
ATSAMD20G17A-AU β ActiveMicrochip Technology
ATSAMD21G18A-AU - 48MHz Cortex-M0+ MCU 256KB Flash | Microchip
ATSAMD21G18A-AU β ActiveSpecification Comparison
| Parameter | ATSAMD20G17A-AU | ATSAMD21G18A-AU |
|---|---|---|
| Brand | Microchip Technology | Microchip Technology |
| Category | Microcontrollers | Microcontrollers |
| Lifecycle Status | Active | Active |
| Stock Status | In Stock | In Stock |
| Unit Price (USD) | $3.10 | $1.74 |
| Core | ARM Cortex-M0+ (32-bit) | ARM Cortex-M0+ (32-bit) |
| Series | SAM D20G | β |
| Maximum CPU Frequency | 48 MHz | β |
| Program Memory (Flash) | 128 KB (128K x 8) | β |
| RAM Size | 16 KB (16K x 8) | β |
| Supply Voltage (Vcc/Vdd) | 1.62 V to 3.6 V | β |
| ADC | 14-channel, 12-bit, up to 350 ksps | 12-bit |
| DAC | 1-channel, 10-bit | Yes |
| Peripheral Touch Controller (PTC) | Up to 256 channels | β |
| SERCOM Modules | Up to 6 (configurable as I2C/SPI/UART) | β |
| USB | Full-Speed USB 2.0 Device | β |
| Timer/Counters | 6 x 16-bit | Up to 5 x 16-bit TC |
| Operating Temperature | -40 C to +85 C | -40C to +85C (industrial) |
| Package | 48-TQFP (7x7 mm) | 48-pin TQFP (7x7 mm) |
| Mounting Type | Surface Mount | Surface Mount |
| MSL Level | 3 (168 hours) | β |
| RoHS Status | Compliant | Compliant (green package) |
| Maximum CPU Clock | β | 48 MHz |
| Flash Memory | β | 256 KB |
| SRAM | β | 32 KB |
| Supply Voltage Range | β | 1.62 V to 3.63 V |
| DMAC Channels | β | 12 |
| Event System Channels | β | 12 |
| SERCOM Interfaces | β | Configurable as USART / SPI / I2C |
| Debug Interface | β | Serial Wire Debug (SWD), 2-pin |
| CoreMark/MHz | β | 2.46 |
| Functional Safety | β | FuSa-ready |