ATSAMR21ZLL-EK vs ATSAMG55-XPRO Comparison
Detailed side-by-side comparison of ATSAMR21ZLL-EK by Microchip Technology and ATSAMG55-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
ATSAMR21ZLL-EK - SAM R21 802.15.4 2.4GHz Eval Kit | Microchip
ATSAMR21ZLL-EK ✓ ActiveMicrochip Technology
ATSAMG55-XPRO - SAM G55 ARM Cortex-M4 Xplained Pro Kit | Microchip
ATSAMG55-XPRO ✓ ActiveSpecification Comparison
| Parameter | ATSAMR21ZLL-EK | ATSAMG55-XPRO |
|---|---|---|
| Brand | Microchip Technology | Microchip Technology |
| Category | Development Boards | Development Boards |
| Lifecycle Status | Active | Active |
| Stock Status | In Stock | In Stock |
| Unit Price (USD) | $100.76 | $40.25 |
| Product Type | Evaluation Kit / Development Board (Xplained Pro) | Evaluation / Development Kit (Xplained Pro) |
| Target Device | ATSAMR21G18A | — |
| Core Architecture | ARM Cortex-M0+ (32-bit) | ARM 32-bit Cortex-M4 with single-precision FPU and DSP extensions |
| CPU Clock Speed | Up to 48 MHz | — |
| Wireless Protocol | IEEE 802.15.4 / ZigBee PRO / ZigBee Green Power | — |
| Radio Frequency Band | 2.4 GHz (2.4 – 2.4835 GHz ISM) | — |
| On-board Flash | 256 KB | — |
| On-board SRAM | 32 KB | — |
| On-board Transceiver | Integrated 2.4 GHz 802.15.4 | — |
| Antenna Connector | SMA footprint (chip antenna on board) | — |
| Debug Interface | On-board Embedded Debugger (EDBG) over USB | — |
| Expansion Headers | Arduino R3-compatible, mikroBUS | — |
| Power Supply | USB-powered (micro-USB / USB) | — |
| Operating System Support | Windows 7 32/64-bit, Windows XP 32/64-bit | — |
| IDE Support | Atmel Studio / Microchip Studio | — |
| On-board Indicators | RGB PLCC4 LED (PWM-driven, current-sink) | — |
| RoHS Status | Compliant (per Microchip product page) | Compliant (per Microchip product page) |
| Target MCU | — | ATSAMG55J19B (SAM G55, ARM Cortex-M4 with FPU) |
| Maximum CPU Clock | — | 120 MHz |
| Low-frequency Crystal | — | 32.768 kHz |
| Supported OS (IDE) | — | Windows 7 / Windows XP (Atmel Studio / Microchip Studio) |
| On-board Debugger | — | EDBG (USB interface, programming + debug) |
| Extension Headers | — | 2x Xplained Pro extension headers + mikroBUS socket |
| User Interface | — | Mechanical buttons, user LEDs |
| Power Input | — | USB (powered via EDBG) and external connector |
| Form Factor | — | Xplained Pro standard PCB |
| Mounting Type | — | Through-hole male header pins (extension), surface-mount PCB |
| Family | — | SAM G55 Xplained Pro |
| Toolchain Support | — | Microchip Studio / Atmel Studio, ASF, GCC ARM |