ATSAMD21J18A-CU vs ATSAMD21-XPRO Comparison
Detailed side-by-side comparison of ATSAMD21J18A-CU by Microchip Technology and ATSAMD21-XPRO 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
ATSAMD21J18A-CU - 256KB Flash 48MHz Cortex-M0+ MCU | Microchip
ATSAMD21J18A-CU ✓ ActiveMicrochip Technology
ATSAMD21-XPRO - SAM D21 Xplained Pro ARM Cortex-M0+ Eval Board
ATSAMD21-XPRO ✓ ActiveSpecification Comparison
| Parameter | ATSAMD21J18A-CU | ATSAMD21-XPRO |
|---|---|---|
| Brand | Microchip Technology | Microchip Technology |
| Category | Microcontrollers | Development Boards |
| Lifecycle Status | Active | Active |
| Core | ARM Cortex-M0+ (32-bit) | — |
| Maximum CPU Frequency | 48 MHz | — |
| CoreMark/MHz | 2.46 | — |
| Flash Memory | 256 KB | — |
| SRAM | 32 KB | 32 KB |
| Operating Voltage | 1.62 V to 3.6 V | — |
| Package | 64-ball UFBGA (CU), 5x5 mm | — |
| SERCOM Channels | 6 (configurable as UART/SPI/I2C) | — |
| USB | USB 2.0 Full-Speed Device with on-chip PHY | — |
| ADC | 12-bit, up to 1 MSPS, up to 12 analog inputs | — |
| DAC | 10-bit, 1 channel | — |
| Timers/Counters | Up to 8 TC channels (24-bit), 3 TCC channels (16-bit) | — |
| I/O Pins | Up to 52 GPIO (depending on package) | — |
| Operating Temperature | -40C to +85C (Industrial / GREEN) | — |
| On-chip Oscillator | 48 MHz DFLL48M with PLL | — |
| Mounting Type | Surface Mount (BGA) | — |
| RoHS Status | Compliant (GREEN) | Compliant |
| MSL Level | 3 (per JEDEC J-STD-020) | — |
| Product Type | — | Evaluation Board (Xplained Pro) |
| Target MCU | — | ATSAMD21J18A |
| Core Processor | — | ARM Cortex-M0+ 32-bit |
| CPU Max Frequency | — | 48 MHz |
| Flash Memory (on-chip) | — | 256 KB |
| On-board SPI Flash | — | 1 MB |
| Low-frequency Crystal | — | 32.768 kHz |
| High-frequency Crystal | — | 12 MHz |
| Debug Interface | — | nEDBG (CMSIS-DAP) on-board |
| USB Connectors | — | 1x Micro-B (debug/CDC), 1x Micro-B (target) |
| Extension Headers | — | 3x 20-pin Xplained Pro (compatible with I/O1, OLED1, QT1, PROTO1) |
| User Inputs | — | 1x mechanical reset button, 1x user touch button |
| User Outputs | — | 1x user LED |
| Arduino-compatible Headers | — | Yes (subset of ATSAMD21J18A I/O) |
| Operating Voltage (target) | — | 3.3 V |
| Board Power Source | — | USB Micro-B |
| Supported IDEs | — | MPLAB X IDE, Atmel Studio 7, Atmel START |
| Form Factor | — | Xplained Pro standard (approx 88 mm x 53 mm) |