ATSAMR21G18-MR210UAT - 2.4GHz Zigbee Module, 256KB Flash | Microchip
Référence : ATSAMR21G18-MR210UAT ✓ Actif| Qté | Prix unitaire | Total |
|---|---|---|
| 1 | $14.2 | $14,20 |
| 10 | $12.95 | $129,50 |
| 100 | $11.5 | $1 150,00 |
| 500 | $10.4 | $5 200,00 |
| 1 000 | $9.6 | $9 600,00 |
ATSAMR21G18-MR210UAT Présentation
An IEEE 802.15.4 / Zigbee module is a pre-certified RF sub-system that combines a microcontroller core, a 2.4 GHz radio transceiver, and the necessary impedance-matched RF front end into a single solder-mountable package. By integrating the radio and MCU in one SiP, the module category sits within the wireless-modules hierarchy: wireless module → RF module → 802.15.4 module → Zigbee module → wireless connectivity IC. This integration offloads the costly FCC/ETSI RF certification burden from the end product.
The ATSAMR21G18-MR210UAT features 256 KB of in-application programmable flash, 32 KB SRAM, an ARM Cortex-M0+ core running up to 48 MHz, and a built-in ATECC608A-class crypto-authentication device for secure key storage. Its integrated 2.4 GHz transceiver achieves a link budget suitable for indoor mesh deployments up to 50–100 m line-of-sight, while the module supports external power amplifier output and antenna diversity through the host PCB.
Typical applications include Zigbee and Thread mesh networks, smart-home lighting and sensor nodes, industrial wireless sensor networks (WSN), home automation gateways, and connected-health wearables. The pre-certified footprint reduces time-to-market for OEMs targeting Matter, Zigbee 3.0, or proprietary 802.15.4 stacks using the Atmel/Microchip ASF or Harmony 3 framework.
The U.FL external antenna interface allows the integrator to select an antenna tuned to the enclosure, and the surface-mount footprint supports standard reflow soldering at 245 °C peak per JEDEC J-STD-020. Antenna is not included with the part, simplifying import logistics and letting buyers choose a vendor-matched antenna.
This page synthesizes distributor pricing, datasheet document references, and drop-in alternative notes that are not aggregated on a single manufacturer page, complementing the official Microchip datasheet Atmel-42475.
Alternatives de remplacement direct pour ATSAMR21G18-MR210UAT — même boîtier, compatible broche à broche. Les références à boîtier différent nécessitant une retouche du PCB sont exclues.
Variantes de cette série
Modèles de la même série directement compatibles avec ATSAMR21G18-MR210UAT (même facteur de forme et même empreinte) — différant par Antenna Interface, Core, Core Clock Speed, Module Type, Mounting Type.
Outil de comparaison rapide — sélectionnez des références alternatives pour une comparaison côte à côte :
ATSAMR21G18A-MR210UA
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
ATSAMR21E18A-MR210UA
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
ATSAMR21G18-MR210UA
✅ Remplacement direct✓ En stock
$11.55 / unité
Voir la fiche technique →ATSAMR21G18-MR210UAT Spécifications (publiées par le fabricant)
| Module Type | IEEE 802.15.4 / Zigbee Wireless Module |
| Frequency Band | 2.4 GHz (2400-2483.5 MHz) |
| RF Data Rate | 250 kbps (802.15.4); up to 2000 kbps |
| TX Power (typical) | +4 dBm |
| On-board SiP | ATSAMR21G18A (ARM Cortex-M0+ + 2.4 GHz radio) |
| Core | ARM Cortex-M0+ 32-bit |
| Core Clock Speed | 48 MHz max |
| Flash Memory | 256 KB |
| SRAM | 32 KB |
| Serial Flash | Integrated on module |
| Crypto Authentication | Integrated on module |
| Antenna Interface | U.FL connector (antenna not included) |
| Module Footprint | 42-pin SMD module, 19 mm x 20 mm |
| Type de montage | Surface Mount (reflow) |
| Statut RoHS | Compliant |
| Protocol Support | Zigbee, Thread, IEEE 802.15.4 |
Interfaces et connecteurs du ATSAMR21G18-MR210UAT
Aucune liste d'interfaces publiée par le fabricant n'est disponible pour le ATSAMR21G18-MR210UAT. Consultez la documentation du fabricant pour les détails des connecteurs et des embases.
Consultez la documentation du fabricant pour le brochage complet du connecteur d'extension et la numérotation des broches du connecteur.
Applications typiques
ATSAMR21G18-MR210UAT convient pour 7 applications: Zigbee Mesh Lighting Networks, Smart Home Sensor Nodes, Industrial Wireless Sensor Networks (WSN), Connected Health Wearables, Smart Energy / AMI Metering, Building Automation HVAC and Access Control, Thread Mesh Border Routers and IoT Hubs.
Zigbee Mesh Lighting Networks
The ATSAMR21G18-MR210UAT's 256 KB flash supports full Zigbee 3.0 or Zigbee PRO stack implementations including Green Power proxy and touchlink commissioning. Its +4 dBm TX power and 250 kbps O-QPSK modulation deliver the 50–100 m indoor range required for residential and commercial lighting networks. The integrated crypto-authentication device enables secure key exchange for commissioning devices onto a Zigbee 3.0 network, while the 32 KB SRAM accommodates the network table and APS-layer encryption buffers. Paired with an AC-side wireless module and a lighting MCU, the ATSAMR21G18-MR210UAT can replace legacy wired DALI control with a wireless mesh.
Recommandé
Smart Home Sensor Nodes
For battery-powered Zigbee sensors (temperature, door/window, occupancy), the ATSAMR21G18-MR210UAT integrates an ARM Cortex-M0+ core and 2.4 GHz radio in a single solderable module, eliminating the need for a separate MCU. The Cortex-M0+'s SleepWalking peripheral event system and the SAM R21's RTC domain allow deep-sleep currents below 1 µA, critical for coin-cell or 2×AAA battery nodes with 5–10 year life targets. U.FL connector lets designers select a chip or trace antenna matched to the enclosure geometry, and the module's pre-certified RF section removes the FCC Part 15.247 burden for ISM-band transmitters.
Recommandé
Industrial Wireless Sensor Networks (WSN)
Industrial WSN deployments benefit from the ATSAMR21G18-MR210UAT's pre-certified 2.4 GHz radio, robust mesh routing, and 256 KB flash for storing sensor calibration data and routing tables. The integrated crypto-authentication device supports secure OTA firmware updates, required for IIoT deployments where physical access is difficult. Industrial temperature ranges and the U.FL connector for an external high-gain antenna enable factory-floor coverage across steel-reinforced buildings where 2.4 GHz propagation is challenging. The module's reflow-compatible 42-pin SMD footprint simplifies PCBA integration.
Recommandé
Connected Health Wearables
In connected-health wearables (pulse oximeters, continuous glucose monitors, ECG patches), the ATSAMR21G18-MR210UAT's small 19×20 mm footprint and low-power SAM R21 core enable 5–7 day battery life targets. The integrated crypto-authentication device is a strong fit for HIPAA/GDPR-compliant data-at-rest requirements, providing hardware root-of-trust for patient telemetry. With 256 KB flash, the module can run Zigbee or Thread stacks plus a custom BLE coexistence handler for hybrid smartphones/medical-hub connectivity. U.FL allows a flexible printed antenna mounted on a curved housing.
Recommandé
Smart Energy / AMI Metering
Advanced Metering Infrastructure (AMI) endpoints benefit from the ATSAMR21G18-MR210UAT's regulatory-certified 2.4 GHz radio and Zigbee/Thread mesh capability for multi-hop HAN (Home Area Network) deployments. The on-module serial flash allows over-the-air firmware storage for HAN gateway code, while the crypto-authentication device supports DLMS/COSEM or proprietary security handshakes required by utilities. The +4 dBm TX power plus external PA option (via SAM R21's I/O) supports the 100+ meter outdoor ranges needed for AMI backhaul to neighborhood concentrators.
Recommandé
Building Automation HVAC and Access Control
The ATSAMR21G18-MR210UAT enables wireless retrofit of legacy HVAC and access-control systems without running new cable. Its Cortex-M0+ core handles local control loops (thermostat PID, door lock actuation) while the Zigbee/Thread radio reports to a central building automation controller. The 42-pin SMD module footprint and 19×20 mm mechanical envelope fit behind standard wall plates and above-ceiling sensor mounts. Hardware crypto-authentication prevents unauthorized access to door controllers, meeting commercial security standards. Low SleepWalking power extends battery life for wireless door/window sensors to 5+ years.
Recommandé
Thread Mesh Border Routers and IoT Hubs
Thread border routers aggregate low-power Thread mesh nodes onto Wi-Fi/Ethernet backbones for the Matter smart-home ecosystem. The ATSAMR21G18-MR210UAT provides the certified Thread radio with the SAM R21's 48 MHz Cortex-M0+ capable of running the OpenThread stack with CoAP/UDP forwarding. With 256 KB flash, it can host a Thread Border Router agent in addition to mesh routing tables for hundreds of nodes. U.FL allows integration of an external high-gain antenna to maximize coverage area in multi-story homes or commercial spaces.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour ATSAMR21G18-MR210UAT — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | ATSAMR21G18A-MR210UA | ATSAMR21E18A-MR210UA | ATSAMR21G18-MR210UA |
|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 42-pin SMD module, 19x20 mm | 42-pin SMD module, 19x20 mm - same | 42-pin SMD module, 19x20 mm - same | 42-pin SMD module, 19x20 mm - same |
| Packaging | Tape & Reel | Tray | Tray | Tray |
| On-board SiP | ATSAMR21G18A | ATSAMR21G18A | ATSAMR21E18A | ATSAMR21G18A |
| Flash / SRAM | 256 KB / 32 KB | 256 KB / 32 KB | 256 KB / 32 KB | 256 KB / 32 KB |
| Crypto Authentication | Yes (on-module) | Yes | No | Yes |
| Antenna Connector | U.FL | U.FL | U.FL | U.FL |
| Frequency / Protocol | 2.4 GHz / 802.15.4 / Zigbee / Thread | 2.4 GHz / 802.15.4 / Zigbee / Thread | 2.4 GHz / 802.15.4 / Zigbee / Thread | 2.4 GHz / 802.15.4 / Zigbee / Thread |
Principaux différenciateurs
- Pre-certified 2.4 GHz module eliminates RF regulatory burden (vs Bare ATSAMR21G18A-MF IC)
- Includes on-module crypto-authentication device (vs ATSAMR21E18A-MR210UA (lower-cost sibling))
- Cortex-M0+ at 48 MHz with 256 KB flash supports full Zigbee 3.0 / Thread stack (vs ATSAMR21G18A-MR210UA (tray variant))
Notes de conception
The ATSAMR21G18-MR210UAT uses castellated edge pads for reflow soldering. Follow Microchip's recommended land pattern exactly - deviation of more than 0.1 mm in pad pitch can cause solder bridging or open joints. The module's central thermal pad (if present) must be soldered to a copper pour of at least 25 mm² for proper heat dissipation. JEDEC J-STD-020 reflow profile with 245 °C peak temperature and 60 s time-above-liquidus is recommended. Place a 4.7 µF + 0.1 µF decoupling capacitor pair within 3 mm of the module's VDD pin to suppress 2.4 GHz harmonic noise.
Antenna is not included with the ATSAMR21G18-MR210UAT. Designers must select a U.FL-terminated 2.4 GHz antenna whose VSWR is below 2:1 across the 2400–2483.5 MHz band to maintain regulatory compliance. A mismatched antenna can shift the radiated harmonics out of the FCC/ETSI mask even though the module itself is certified. Also note: the module ships in tape-and-reel (suffix 'T'); tray-packaged samples (suffix 'A') are available but production should specify 'T' for SMT lines.
Place the U.FL connector and antenna trace on the same side of the PCB as the module, with a continuous ground plane underneath the module footprint to control impedance. Keep the U.FL pigtail length below 25 mm to minimize insertion loss. For enclosures with plastic walls, mount the antenna near the edge of the board pointing outward; metal-shielded enclosures attenuate the 2.4 GHz signal by 15–25 dB and require an external antenna cable. If the design uses both the SAM R21 MCU peripherals and the 2.4 GHz radio simultaneously, route GPIO traces away from the antenna area to avoid coupling.
The ATSAMR21G18-MR210UAT draws approximately 13 mA in continuous RX mode and 17 mA at +4 dBm TX. For battery-powered designs, use SleepWalking and the SAM R21's RTC domain to enter deep-sleep below 1 µA. Estimated: at 1 transmission per minute and 0.5% duty cycle, a 2×AAA battery pack (2500 mAh) supports 3–5 years of operation. Decoupling must include a 10 µF bulk capacitor in parallel with the 0.1 µF high-frequency bypass to handle the TX burst current without rail droop.
Informations de conformité
RoHS compliant per Microchip product page. Not AEC-Q100 qualified - this is a commercial/industrial grade module. For automotive Zigbee deployments, evaluate AEC-Q100 qualified alternatives. EU/ETSI compliance for the module is documented in the user manual; final product compliance is the integrator's responsibility.
