ATSAMR21B18-MZ210PA - 2.4GHz 802.15.4 Zigbee Module | Microchip
MPN： ATSAMR21B18-MZ210PA ✓ 啟用中ATSAMR21B18-MZ210PA 概覽
An 802.15.4 module is a pre-certified radio block that combines an RF transceiver, microcontroller, antenna, and crystal on a single PCB so the host product can attach a wireless mesh node without needing RF design expertise. Within the broader taxonomy, the ATSAMR21B18 belongs to wireless modules -> RF modules -> RF transceiver modules, sitting above the bare 802.15.4 transceiver IC layer. Using a certified module also removes the burden of RF tuning, regulatory testing, and antenna matching for the OEM engineer.
Key features include integrated trace antenna with no external matching network required, support for SPI and UART host interfaces, and surface-mount plus through-hole mounting flexibility for varied product enclosures. The module is supplied in Tray packaging for high-volume SMT lines, ships with EU compliance documentation, and supports operating temperatures up to +125 °C for harsh industrial and lighting environments. Typical RX current is 11.8 mA and typical TX current is 13.8 mA, giving designers predictable battery-life budgets for coin-cell or energy-harvesting nodes.
Architecturally, the ATSAMR21B18-MZ210PA is built around Microchip's SAM R21 family, which pairs an ARM Cortex-M0+ core with a 2.4 GHz IEEE 802.15.4 radio and SAM D21-compatible peripherals. The on-module serial flash allows over-the-air firmware updates and bulk data logging without adding external components, while the integrated trace antenna keeps BOM count and PCB area minimal. The combination of low TX/RX currents and integrated Flash positions the part as a strong choice for low-duty-cycle mesh nodes.
Typical applications include Zigbee and IEEE 802.15.4 lighting controls, smart-home gateways, industrial sensor mesh nodes, and energy-harvesting wireless switches. Designers can drop the module onto a 2-layer host PCB without any RF layout work, attach sensors over SPI or UART, and rely on Microchip's certified firmware stacks (BitCloud, Zigbee 3.0, Thread via SoftDevice partners) to accelerate time-to-market. The module is also commonly used in retail asset tracking and HVAC building-automation retrofits.
When designing with this module, observe the keep-out area around the integrated trace antenna and avoid copper pours or metal shields above the antenna region to preserve radiation pattern. Use short, well-decoupled SPI traces between the host MCU and the module, and follow the reference decoupling network shown in the datasheet. Antenna gain and conducted TX power must be kept within the certified limits of the module grant to maintain regulatory compliance.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone, helping sourcing engineers and firmware developers evaluate the ATSAMR21B18-MZ210PA against modern Zigbee and Thread module families.
直接替換替代品，適用於 ATSAMR21B18-MZ210PA — 相同封裝，腳位對腳位相容。需重新設計 PCB 的不同封裝零件不列入。
此系列的變體
與下列產品可直接替換的同系列型號： ATSAMR21B18-MZ210PA （相同外形與佔位） — 差異在於 Antenna, Integrated IC, Mounting Type, Operating Frequency, Packaging.
ATSAMR21G18A-MF
✅ 直接替換 ⚠️ 規格未經驗證📋 參考替代品（不在目錄中）
ATSAMR21G16B-MF
✅ 直接替換 ⚠️ 規格未經驗證📋 參考替代品（不在目錄中）
ATSAMW25H18-MR210PB
✅ 直接替換📋 參考替代品（不在目錄中）
ATSAMR21E18A-MF
✅ 直接替換 ⚠️ 規格未經驗證📋 參考替代品（不在目錄中）
CC2530F256RHAR
✅ 直接替換📋 參考替代品（不在目錄中）
ATSAMR21B18-MZ210PA 規格（製造商公布）
| Product Type | RF Transceiver Module (802.15.4 / Zigbee) |
| Module Dimensions | 19.7 mm x 16.3 mm |
| Operating Frequency | 2.4 GHz (ISM band) |
| RF Protocol | IEEE 802.15.4 / Zigbee |
| Modulation | O-QPSK (per IEEE 802.15.4) |
| Integrated IC | ATSAMR21E18 (ARM Cortex-M0+ SoC with 2.4 GHz radio) |
| On-board Memory | 256 kB Flash + serial data flash |
| Host Interfaces | SPI, UART |
| Antenna | Integrated trace antenna |
| 安裝類型 | Surface Mount (SMT) with TH option |
| RX Current (typical) | 11.8 mA |
| TX Current (typical) | 13.8 mA |
| 工作溫度 | Up to +125 °C (extended) |
| Packaging | Tray |
| Regulatory Region | European Union (conform for use) |
ATSAMR21B18-MZ210PA 腳位配置
| 腳位 1 | GND — Ground reference |
| 腳位 2 | VDD — Module supply voltage (3.3 V typical) |
| 腳位 3 | RESET — Module reset input |
| 腳位 4 | SPI_MOSI — SPI master-out slave-in (host to module) |
| 腳位 5 | SPI_MISO — SPI master-in slave-out (module to host) |
| 腳位 6 | SPI_CLK — SPI clock from host controller |
| 腳位 7 | UART_TX — UART transmit from module to host |
功率與熱特性
| 操作溫度 | Up to +125 °C (extended) |
ATSAMR21B18-MZ210PA 由製造商公布的功率輸入與熱參數。
典型應用
ATSAMR21B18-MZ210PA 適用於 7 應用s: Zigbee Smart Lighting Modules, Wireless Sensor Mesh Nodes, Smart Home Gateway Bridges, Industrial Building Automation, Retail Asset Tracking Beacons, Healthcare Wellness Mesh Nodes, Energy-Harvesting Wireless Switches.
Zigbee Smart Lighting Modules
The ATSAMR21B18-MZ210PA's integrated 2.4 GHz 802.15.4 radio and 256 kB Flash make it a strong fit for Zigbee lighting modules that join existing mesh networks without external components. Designers place the module on a small lighting-driver PCB, supply 3.3 V, and connect dimming PWM lines from the host MCU. The integrated trace antenna eliminates RF tuning, and the extended +125 °C rating lets the module sit adjacent to LED driver heat sinks. Typical standby current stays below 1 mA in Zigbee sleep mode, supporting energy-harvesting wireless light switches and luminaire retrofits.
推薦
Wireless Sensor Mesh Nodes
Battery-powered Zigbee sensors benefit from the module's 11.8 mA RX and 13.8 mA TX typical currents, which keep duty-cycled mesh nodes within multi-year battery budgets. The on-module serial flash provides 256 kB OTA staging, so sensor firmware can be updated in field without external memory. Engineers connect sensors over SPI or UART to the module's host interface, mount the PCB in a small enclosure, and rely on the certified radio to avoid in-country RF testing. This fits industrial temperature, humidity, and air-quality mesh deployments in commercial buildings.
推薦
Smart Home Gateway Bridges
Smart-home hubs often need a Zigbee mesh interface alongside Wi-Fi or Ethernet; the ATSAMR21B18-MZ210PA provides that 802.15.4 link in a small SMT module. Its SPI interface lets a Linux or RTOS-based gateway host enumerate Zigbee end devices and translate them into IP-based protocols. The integrated trace antenna and EU conformity accelerate certification, while the +125 °C rating supports installation in attic-mounted hubs. Compared to a USB dongle, this SMT module reduces BOM and improves mechanical reliability.
推薦
Industrial Building Automation
HVAC and building-automation retrofits leverage the module's extended +125 °C temperature range and EU conformity for installations near boilers, motors, and outdoor junction boxes. The on-board serial flash can store configuration and calibration data locally, while SPI connects to building controllers. Its low TX current and certified 2.4 GHz 802.15.4 PHY support dense mesh networks of HVAC sensors, damper actuators, and occupancy detectors. Microchip's BitCloud and Zigbee 3.0 firmware stacks reduce software development effort.
推薦
Retail Asset Tracking Beacons
Retail and warehouse asset-tracking tags benefit from the module's small 19.7 x 16.3 mm footprint, allowing compact BLE/Zigbee beacons inside pallet tags or retail fixtures. The integrated serial flash holds location logs and OTA images, while the Cortex-M0+ SoC can run simple application code for sensor aggregation. The 11.8 mA RX current keeps battery life acceptable for multi-year tag operation. Drop the module onto a 2-layer host PCB with a coin cell and you have a deployable asset tag.
推薦
Healthcare Wellness Mesh Nodes
In wellness and remote-monitoring devices, the ATSAMR21B18-MZ210PA provides a certified 2.4 GHz mesh link for body-worn sensors reporting temperature, SpO2, or activity data. Its low TX current extends battery life for patient wearables, while the integrated trace antenna enables slim form factors. The +125 °C rating supports sterilization-friendly industrial enclosures. Note that this module is not a medical device on its own; integrators must validate any clinical claim and pair the module with an FDA- or CE-cleared sensor subsystem.
推薦
Energy-Harvesting Wireless Switches
Self-powered Zigbee light switches use energy harvested from button presses to transmit on/off commands. The module's 13.8 mA peak TX current fits within the typical pulse budget of an EnOcean-style harvester, and its 256 kB Flash stores the application stack plus optional OTA staging. Mounting flexibility (SMT plus TH option) lets the designer choose between a flat switch panel or a conventional wall-box PCB. Designers should still validate energy budget at minimum ambient light or actuation rate.
推薦
推薦產品摘要
工程參考資料，適用於 ATSAMR21B18-MZ210PA — 比較、設計指引及合規資訊。
選型指南
與替代品比較
| 參數 | 本產品 | ATSAMR21G18A-MF | ATSAMR21G16B-MF | ATSAMW25H18-MR210PB | ATSAMR21E18A-MF | CC2530F256RHAR |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Texas Instruments |
| Package | Module 19.7 mm x 16.3 mm (SMT/TH) | Module 19.7 mm x 16.3 mm | Module 19.7 mm x 16.3 mm | Module 19.7 mm x 16.3 mm | Module SAM R21 family | VQFN-40 (IC, not module) |
| Protocol | 802.15.4 / Zigbee | 802.15.4 / Zigbee | 802.15.4 / Zigbee | WiFi 802.11 b/g/n | 802.15.4 / Zigbee | 802.15.4 / Zigbee |
| Operating Frequency | 2.4 GHz | 2.4 GHz | 2.4 GHz | 2.4 GHz | 2.4 GHz | 2.4 GHz |
| Host Interface | SPI, UART | SPI, UART | SPI, UART | SPI, UART | SPI, UART | SPI, UART, USB |
| Antenna | Integrated trace | Integrated trace | Integrated trace | Integrated trace | Integrated trace | External (IC only) |
主要差異化特點
- Integrated serial flash for OTA staging (對比ATSAMR21G16B-MF)
- 802.15.4 / Zigbee protocol vs Wi-Fi (對比ATSAMW25H18-MR210PB)
- Pre-certified module with integrated antenna (對比CC2530F256RHAR)
設計說明
Preserve the manufacturer's antenna keep-out zone above and around the integrated trace antenna. Do not place copper pours, ground planes, battery contacts, metal shields, or display layers within the keep-out area defined in the datasheet. Truncating or covering the keep-out will degrade radiation pattern and may void the module's EU conformity.
Decouple the module's VDD pin with a 10 uF bulk capacitor plus a 100 nF ceramic placed as close to the module pad as possible. The 2.4 GHz radio draws sharp TX current pulses (13.8 mA typical); poor decoupling causes VDD droop that couples into the host MCU rail and produces RF spurious emissions. Tie module GND to the host PCB ground plane with multiple short vias to keep the return path low-impedance at 2.4 GHz.
Do not exceed the certified conducted TX power or apply external antenna modifications - the EU conformity grant applies only to the module as supplied with its integrated trace antenna. Routing the SPI bus between the host MCU and the module must avoid stubs; use series resistors if the bus is long. Always assert RESET low for at least the datasheet minimum pulse width before releasing the module into application.
合規資訊
Module is conform for use in EU countries per Microchip datasheet. Lead-free assembly per Microchip product page. RoHS/REACH status not explicitly stated in the verified snippets; confirm with Microchip documentation before design-in.
