ATSAMR21-XPRO vs ATSAMD21-XPRO 对比
详细并排对比 ATSAMR21-XPRO 出自 Microchip Technology 和 ATSAMD21-XPRO 出自 Microchip Technology。对比关键规格、电气参数、封装、生命周期状态、价格和供货情况，以确定最适合您设计需求的元器件。
Microchip Technology
ATSAMR21-XPRO - ATSAMR21G18A 802.15.4 2.4GHz Eval Kit | Microchip
ATSAMR21-XPRO ✓ 量产中Microchip Technology
ATSAMD21-XPRO - SAM D21 Xplained Pro ARM Cortex-M0+ Eval Board
ATSAMD21-XPRO ✓ 量产中规格对比
| 参数 | ATSAMR21-XPRO | ATSAMD21-XPRO |
|---|---|---|
| 品牌 | Microchip Technology | Microchip Technology |
| 分类 | Development Boards | Development Boards |
| 生命周期状态 | 有效 | 有效 |
| 库存状态 | 有库存 | 有库存 |
| 单价（USD） | $66.00 | $36.25 |
| Product Type | Evaluation Kit / Development Board | Evaluation Board (Xplained Pro) |
| On-board MCU | ATSAMR21G18A | — |
| Core Architecture | ARM Cortex-M0+ 32-bit | — |
| Operating Frequency | Up to 48 MHz | — |
| Program Memory | 256 KB Flash | — |
| RAM | 32 KB SRAM | — |
| RF Frequency Band | 2.4 GHz ISM | — |
| RF Standard | IEEE 802.15.4 / Zigbee / 6LoWPAN | — |
| Modulation | O-QPSK (per IEEE 802.15.4 PHY) | — |
| RF Link Budget | 103 dB | — |
| MCU Package | 64-pin QFN | — |
| On-board Antenna | Integrated 2.4 GHz ceramic chip antenna | — |
| Debug Interface | On-board EDBG (USB to SWD + VCOM + DGI) | nEDBG (CMSIS-DAP) on-board |
| Host Interface | USB Micro-B | — |
| Form Factor | Xplained Pro (compatible with Xplained Pro extensions) | Xplained Pro standard (approx 88 mm x 53 mm) |
| Supported Software | Atmel Studio, Microchip Studio, ASF, BitCloud Zigbee PRO, IEEE 802.15.4 MAC | — |
| RoHS 状态 | Compliant | Compliant |
| Lead-Free | Yes | — |
| Target MCU | — | ATSAMD21J18A |
| Core Processor | — | ARM Cortex-M0+ 32-bit |
| CPU Max Frequency | — | 48 MHz |
| Flash Memory (on-chip) | — | 256 KB |
| SRAM | — | 32 KB |
| On-board SPI Flash | — | 1 MB |
| Low-frequency Crystal | — | 32.768 kHz |
| High-frequency Crystal | — | 12 MHz |
| 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 |