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 ✓ ActiveMicrochip Technology
ATSAMD21G18A-AU - 48MHz Cortex-M0+ MCU 256KB Flash | Microchip
ATSAMD21G18A-AU ✓ ActiveSpecification Comparison
| Parameter | ATSAMD20G17A-AU | ATSAMD21G18A-AU |
|---|---|---|
| Brand | Microchip Technology | Microchip Technology |
| Category | Microcontrollers | Microcontrollers |
| Lifecycle Status | Active | Active |
| Unit Price (USD) | — | $2.78 |
| Core | ARM Cortex-M0+ (32-bit) | ARM Cortex-M0+ (32-bit) |
| Series | SAM D20G | SAM D21G (Functional Safety / FuSa) |
| Maximum CPU Frequency | 48 MHz | 48 MHz |
| Program Memory (Flash) | 128 KB (128K x 8) | — |
| RAM Size | 16 KB (16K x 8) | — |
| Supply Voltage (Vcc/Vdd) | 1.62 V to 3.6 V | — |
| ADC | 14-channel, 12-bit, up to 350 ksps | 14-channel, 12-bit |
| DAC | 1-channel, 10-bit | 10-bit |
| Peripheral Touch Controller (PTC) | Up to 256 channels | Up to 256 channels (capacitive touch/proximity) |
| SERCOM Modules | Up to 6 (configurable as I2C/SPI/UART) | — |
| USB | Full-Speed USB 2.0 Device | — |
| Timer/Counters | 6 x 16-bit | Up to five 16-bit |
| Operating Temperature | -40 C to +85 C | — |
| Package | 48-TQFP (7x7 mm) | 48-pin TQFP (7x7 mm) |
| Mounting Type | Surface Mount | Surface Mount |
| MSL Level | 3 (168 hours) | — |
| RoHS Status | Compliant | Compliant (Green package) |
| CoreMark/MHz | — | 2.46 |
| Flash Memory | — | 256 KB (256K x 8) |
| SRAM | — | 32 KB |
| Operating Voltage Range | — | 1.62 V to 3.63 V |
| Programmable I/O Pins | — | Up to 52 |
| DMAC Channels | — | 12 |
| Event System Channels | — | 12 |
| Communication Peripherals (SERCOM) | — | Configurable as USART / SPI / I2C |
| Debug Interface | — | Serial Wire Debug (SWD), 2-pin |
| Sleep Modes | — | Idle, Standby with SleepWalking |