ATSAMD21G18A-AU vs ATSAMD21G17D-AUT Comparison
Detailed side-by-side comparison of ATSAMD21G18A-AU by Microchip Technology and ATSAMD21G17D-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
ATSAMD21G18A-AU - 48MHz Cortex-M0+ MCU 256KB Flash | Microchip
ATSAMD21G18A-AU ✓ ActiveMicrochip Technology
ATSAMD21G17D-AUT - ARM Cortex-M0+ 48MHz 128KB MCU | Microchip
ATSAMD21G17D-AUT ✓ ActiveSpecification Comparison
| Parameter | ATSAMD21G18A-AU | ATSAMD21G17D-AUT |
|---|---|---|
| Brand | Microchip Technology | Microchip Technology |
| Category | Microcontrollers | Microcontrollers |
| Lifecycle Status | Active | Active |
| Stock Status | In Stock | In Stock |
| Unit Price (USD) | $2.78 | $2.78 |
| Core | ARM Cortex-M0+ (32-bit) | ARM Cortex-M0+ (32-bit, single-core) |
| Series | SAM D21G (Functional Safety / FuSa) | — |
| Maximum CPU Frequency | 48 MHz | 48 MHz |
| CoreMark/MHz | 2.46 | — |
| Flash Memory | 256 KB (256K x 8) | — |
| SRAM | 32 KB | 16 KB |
| Operating Voltage Range | 1.62 V to 3.63 V | — |
| Programmable I/O Pins | Up to 52 | — |
| ADC | 14-channel, 12-bit | 12-bit SAR, up to 20 channels, 350 ksps |
| DAC | 10-bit | 10-bit, 1 channel |
| Peripheral Touch Controller (PTC) | Up to 256 channels (capacitive touch/proximity) | — |
| DMAC Channels | 12 | — |
| Event System Channels | 12 | — |
| Timer/Counters | Up to five 16-bit | — |
| Communication Peripherals (SERCOM) | Configurable as USART / SPI / I2C | — |
| Debug Interface | Serial Wire Debug (SWD), 2-pin | — |
| Sleep Modes | Idle, Standby with SleepWalking | — |
| Package | 48-pin TQFP (7x7 mm) | 48-TQFP (7x7 mm) |
| Mounting Type | Surface Mount | Surface Mount (Tape & Reel) |
| RoHS Status | Compliant (Green package) | Compliant |
| CPU Family | — | SAM D21G (Functional Safety) |
| Program Flash | — | 128 KB (128K x 8) |
| RWW Flash Section | — | 4 KB |
| Operating Voltage (VDDIN) | — | 1.62 V to 3.63 V |
| Operating Temperature | — | -40C to +85C (Industrial) |
| USB | — | Full-Speed USB 2.0 Device with integrated PHY |
| SERCOM Channels | — | Up to 6 (configurable as I2C/SPI/UART) |
| Timers/Counters | — | TC x3, TCC x3 |
| RTC | — | 32.768 kHz RTC with calendar mode |
| MSL Level | — | 3 (per JEDEC J-STD-020) |