ATSAMD20J18A-AUT vs ATSAMD21J18A-AUT Comparison
Detailed side-by-side comparison of ATSAMD20J18A-AUT by Microchip Technology and ATSAMD21J18A-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
ATSAMD20J18A-AUT - ARM Cortex-M0+ 48MHz 256KB Flash MCU | Microchip
ATSAMD20J18A-AUT ✓ ActiveMicrochip Technology
ATSAMD21J18A-AUT - 32-bit Cortex-M0+ MCU 256KB Flash 64-TQFP | Microchip
ATSAMD21J18A-AUT ✓ ActiveSpecification Comparison
| Parameter | ATSAMD20J18A-AUT | ATSAMD21J18A-AUT |
|---|---|---|
| Brand | Microchip Technology | Microchip Technology |
| Category | Microcontrollers | Microcontrollers |
| Lifecycle Status | Active | Active |
| Stock Status | In Stock | In Stock |
| Unit Price (USD) | $2.78 | $2.63 |
| Core | ARM Cortex-M0+ (32-bit) | ARM Cortex-M0+ (32-bit) |
| Family | SAM D20 | — |
| Maximum CPU Clock | 48 MHz | — |
| CoreMark/MHz | 2.14 | — |
| Flash Memory | 256 KB | — |
| SRAM | 32 KB | 32 KB |
| Pin Count | 64 | — |
| Package | 64-LQFP (10x10 mm) | 64-pin TQFP (10x10 mm) |
| Operating Voltage | 1.62 V to 3.63 V | — |
| Operating Temperature | -40C to +85C (industrial) | -40 C to +85 C (industrial, AUT grade) |
| Mounting Type | Surface Mount | — |
| ADC | 12-bit, up to 16 channels | 12-bit, up to 350 ksps, up to 20 channels |
| DAC | 10-bit | 10-bit, 350 ksps, 1 channel |
| SERCOM Modules | 6 (each configures UART/SPI/I2C) | — |
| USB | Full-Speed USB Device | USB 2.0 Full-Speed Device/Host with on-chip transceiver |
| DMAC Channels | 4 | — |
| GPIOs | [DATA_NEEDED: GPIO count for 64-pin LQFP variant] | — |
| RoHS Status | Compliant | Compliant |
| Max CPU Clock | — | 48 MHz |
| Program Memory (Flash) | — | 256 KB |
| Operating Voltage (VDDIN) | — | 1.62 V to 3.63 V |
| I/O Voltage (VDDIO) | — | 1.62 V to 3.63 V |
| GPIO Count | — | 52 |
| Analog Comparators | — | 2 |
| SERCOM | — | 6 (each configurable as UART/SPI/I2C) |
| Timers | — | 6 x 16-bit TC, 1 x 24-bit TCC, 1 x 32-bit RTC |
| PTC (Touch Controller) | — | Yes |
| DMA Channels | — | 12 |
| AEC-Q100 | — | Not qualified (AUT = tape & reel, not automotive grade) |
| Lead-Free / Halogen-Free | — | Yes (Green) |