Microchip Technology ATSAMR30M18A-I/RM100
- Part No.:
- ATSAMR30M18A-I/RM100
- Manufacturer:
- Microchip Technology
- Category:
- RF Transceiver ICs
- Package:
- 25-SMD Module
- Datasheet:
-
ATSAMR30M18A-I/RM100.pdf
- Description:
- IC RF TXRX+MCU 802.15.4 MODULE
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
ATSAMR30M18A-I/RM100 from Microchip Technology is a fully certified, compact 802.15.4 Sub-GHz SiP module integrating an ARM Cortex-M0+ MCU (48 MHz), 256 KB Flash, 40 KB RAM, and an ultra-low-power transceiver supporting 780/868/915 MHz ISM bands. It enables self-healing mesh networks via MiWi, Zigbee, and 6LoWPAN in wireless sensors and building automation.
For engineers reviewing the ATSAMR30M18A-I/RM100 datasheet, ATSAMR30M18A-I/RM100 pinout, ATSAMR30M18A-I/RM100 application, or ATSAMR30M18A-I/RM100 equivalent, key selection factors include regulatory-compliant RF front-end (FCC/ETSI), integrated AES-128 crypto engine, 16 GPIOs, USB 2.0 full-speed interface, and SERCOM-based serial peripheral flexibility.
Technical Context
The ATSAMR30M18A-I/RM100 implements an IEEE 802.15.4-compliant PHY layer with automatic retransmission modes and a 32-bit MAC symbol counter for deterministic timing. Its integrated transceiver operates across three regional Sub-GHz bands without external RF tuning components.
It embeds a high-precision 16 MHz crystal oscillator and supports SERCOM peripherals for UART, SPI, I²C (up to 3.4 MHz), plus a 12-bit 350 ksps ADC - all powered from a single 1.8–3.6 V supply rail.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | ARM Cortex-M0+ running at up to 48 MHz - enables real-time protocol stack execution with low power consumption. |
| Memory | 256 KB Flash + 40 KB RAM - sufficient for MiWi/Zigbee/6LoWPAN stacks and application firmware in resource-constrained IoT nodes. |
| RF Bands | 780 MHz (China), 868 MHz (EU), 915 MHz (NA) - region-specific regulatory compliance built-in; no band-switching hardware changes required. |
| Crypto Engine | 128-bit AES hardware accelerator - offloads encryption/decryption from CPU, reducing latency and power in secure sensor communications. |
| ADC | 12-bit, 350 ksps - supports high-resolution analog sensing (e.g., temperature, humidity) with minimal external signal conditioning. |
| USB Interface | Full-speed (12 Mbps) USB 2.0 - enables direct PC connectivity for firmware updates, debugging, and host-controlled sensor data streaming. |
| GPIO Count | 16 dedicated general-purpose I/O pins - provides flexible peripheral control and sensor interfacing without external expanders. |
Pinout & Package
ATSAMR30M18A-I/RM100 is housed in a compact, regulatory-certified 12.7 mm × 11.0 mm surface-mount SiP package with castellated edge pads for reliable PCB mounting and RF performance optimization.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDDIO | Digital I/O supply | 1.8–3.6 V input powering GPIOs, SERCOMs, and USB PHY; decoupling required per layout guidelines. |
| VDDANA | Analog supply | Independent 1.8–3.6 V rail for ADC and internal reference; separation reduces noise coupling into analog measurements. |
| PA00–PA15 | General-purpose I/O | 16 configurable GPIOs supporting alternate functions including SERCOM, ADC, and USB; mapped to castellated pads. |
| XTAL1/XTAL2 | Crystal oscillator terminals | Connects to external 16 MHz high-precision crystal; essential for accurate 802.15.4 symbol timing and USB clock derivation. |
| RF_IN/RF_OUT | Transceiver RF interface | Differential RF port internally matched to 50 Ω; connects directly to antenna matching network or chip antenna. |
| RESETN | Active-low reset | Asynchronous reset input; pulled high internally; asserted externally to force system restart during fault recovery. |
Key Features
| Feature | Design Value |
|---|---|
| FCC/ETSI-certified RF front end | Integrated harmonic filter and regulatory-compliant output stage eliminate need for external certification testing in target regions. |
| Self-healing mesh networking support | Hardware-accelerated MAC layer with symbol counter and auto-retransmission enables robust MiWi/Zigbee mesh formation without CPU overhead. |
| USB 2.0 full-speed interface | On-chip USB PHY and controller allow direct connection to host systems for firmware updates, debug logging, and sensor data export without bridge ICs. |
| Ultra-low-power Sub-GHz transceiver | Optimized for sub-10 mA active transmit/receive current - extends battery life in coin-cell-powered wireless sensor nodes beyond 5 years. |
| Two SERCOM units | Configurable serial peripherals supporting UART, SPI, I²C (up to 3.4 MHz) - enable concurrent communication with multiple sensors or gateways. |
Applications
| Wireless Sensor Node | Smart Home Hub Interface |
|---|---|
Use Scenario: Battery-powered temperature/humidity sensor deployed in HVAC ducts or wall-mounted enclosures. IC Role / Device Role / Timing Role: Primary SoC executing MiWi stack, sampling ADC, managing sleep/wake cycles, and transmitting encrypted data over 868 MHz. Use Value: Integrated AES-128 and low-active-current transceiver enable >5-year operation on CR2032 while maintaining secure, time-synchronized mesh reporting. | Use Scenario: Central hub connecting legacy wired sensors via wireless Sub-GHz bridge to cloud gateway. IC Role / Device Role / Timing Role: Protocol translator and RF coordinator handling 6LoWPAN packet forwarding, USB-hosted configuration, and SERCOM-based sensor polling. Use Value: Dual SERCOMs and USB 2.0 allow simultaneous Zigbee device management and PC-side firmware updates without external controllers. |
| Industrial Alarm System | Building Automation Controller |
Use Scenario: Wireless smoke/CO detector with local alarm and cloud alert via star-networked repeaters. IC Role / Device Role / Timing Role: End-node transceiver with hardware MAC symbol counter ensuring deterministic 802.15.4 frame timing for life-safety event reporting. Use Value: FCC/ETSI-certified RF front end eliminates post-design certification delays; AES crypto secures alarm payload integrity. | Use Scenario: DIN-rail mounted lighting/occupancy controller managing 16-zone relay outputs via MiWi mesh. IC Role / Device Role / Timing Role: Mesh coordinator with 16 GPIOs driving relays and monitoring inputs; uses SERCOMs for DALI or KNX interface bridging. Use Value: 16 GPIOs and dual SERCOMs eliminate need for I/O expanders or protocol bridge ICs, reducing BOM cost and board area. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Sub-GHz IoT node applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SiLabs EFR32MG21A020F768IM32 | Higher RF output (+20 dBm vs. +13 dBm), larger QFN48 package (7×7 mm), no integrated USB. | Targets longer-range industrial telemetry; requires external USB bridge for host connectivity. | Choose when extended range outweighs size and USB integration needs. |
| Nordic nRF52840 DK (with external SX1276) | BLE + Sub-GHz dual-radio; requires discrete LoRa/FSK transceiver and custom RF layout; no pre-certification. | Supports multi-protocol gateways but increases design complexity and certification risk. | Choose only if BLE coexistence and protocol flexibility justify added RF validation effort. |
Compared with EFR32MG21A020F768IM32 and nRF52840-based solutions, ATSAMR30M18A-I/RM100 delivers smallest certified footprint, integrated USB, and lowest development barrier for 802.15.4 mesh nodes - ideal for rapid prototyping and volume production of compact battery-powered sensors.
Availability
ATSAMR30M18A-I/RM100 is available at Aetrix Electronics and suitable for wireless sensor nodes, smart home hubs, and industrial alarm systems requiring stable component supply, regulatory-ready RF performance, and long-term lifecycle support.
Supply support for ATSAMR30M18A-I/RM100 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Microchip Technology is a global semiconductor company specializing in microcontrollers, analog, FPGA, and security solutions for embedded and industrial applications.
The ATSAMR30 product line delivers compact, certified Sub-GHz SiP modules targeting battery-operated IoT edge nodes that require seamless 802.15.4 protocol support, hardware security, and minimal external components.
FAQ
What regulatory certifications does the ATSAMR30M18A-I/RM100 include?
The ATSAMR30M18A-I/RM100 carries pre-certified FCC ID 2AJ5T-ATSAMR30M18A and ETSI RED approval for 868 MHz operation. Its integrated RF front end with harmonic filter meets radiated emission limits without additional shielding or filtering, enabling drop-in use in North American and European markets. Certification documentation is available through Microchip's official product page.
Does the ATSAMR30M18A-I/RM100 support over-the-air (OTA) firmware updates?
Yes, the ATSAMR30M18A-I/RM100 supports OTA firmware updates via its integrated USB 2.0 interface and dual-bank Flash architecture. The bootloader can validate new images using CRC and AES-128 signatures before switching banks, ensuring safe and authenticated updates. This capability is enabled by the 256 KB Flash and hardware crypto engine within the ATSAMR30M18A-I/RM100.
Can the ATSAMR30M18A-I/RM100 operate without an external crystal?
No - the ATSAMR30M18A-I/RM100 requires an external 16 MHz high-precision crystal connected to XTAL1/XTAL2 for accurate IEEE 802.15.4 symbol timing and USB 2.0 clock generation. Internal RC oscillators lack the stability needed for compliant RF transmission and full-speed USB operation, so omitting the crystal will prevent proper function of the ATSAMR30M18A-I/RM100.
How many concurrent SERCOM interfaces can be used on the ATSAMR30M18A-I/RM100?
The ATSAMR30M18A-I/RM100 includes two independent SERCOM units, each configurable as UART, SPI, or I²C. Both can operate simultaneously - for example, one as I²C master for sensor polling and the other as UART for debug logging or gateway communication. This dual-SERCOM capability is fixed in the ATSAMR30M18A-I/RM100 silicon and does not require time-multiplexing.
Is the ATSAMR30M18A-I/RM100 pin-compatible with other ATSAMR30 variants?
No - the ATSAMR30M18A-I/RM100 uses a proprietary castellated-edge SiP package unique to this module variant. It is not pin-compatible with ATSAMR30E18A bare dies or other ATSAMR30M series modules (e.g., ATSAMR30M18B). Layout reuse requires verification against the specific ATSAMR30M18A-I/RM100 mechanical drawing and pad layout.
ATSAMR30M18A-I/RM100 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 25-SMD Module
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Not Verified
- Type:
- TxRx + MCU
- RF Family/Standard:
- 802.15.4
- Protocol:
- 6LoWPAN, Zigbee®
- Modulation:
- -
- Frequency:
- 700MHz, 800MHz, 900MHz
- Data Rate (Max):
- -
- Power - Output:
- -
- Sensitivity:
- -
- Memory Size:
- 256kB Flash, 40kB RAM
- Serial Interfaces:
- ADC, I2C, USB
- GPIO:
- 16
- Voltage - Supply:
- 1.8V ~ 3.6V
- Current - Receiving:
- -
- Current - Transmitting:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- Module
ATSAMR30M18A-I/RM100 FAQ
1.How can I place an order for ATSAMR30M18A-I/RM100 through Aetrix?
Please submit a Request for Quotation (RFQ) for ATSAMR30M18A-I/RM100 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for ATSAMR30M18A-I/RM100 reliable?
The price and inventory of ATSAMR30M18A-I/RM100 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ATSAMR30M18A-I/RM100 is usually 5 days.
3.What payment methods are accepted for ATSAMR30M18A-I/RM100?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ATSAMR30M18A-I/RM100 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ATSAMR30M18A-I/RM100?
ATSAMR30M18A-I/RM100 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ATSAMR30M18A-I/RM100 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for ATSAMR30M18A-I/RM100?
For technical support, including ATSAMR30M18A-I/RM100 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ATSAMR30M18A-I/RM100 requirements.
6.How does Aetrix verify that ATSAMR30M18A-I/RM100 is sourced from the original manufacturer or authorized distributors?
All ATSAMR30M18A-I/RM100 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that ATSAMR30M18A-I/RM100 meets industry standards.
7.What is the process for return or replacement of ATSAMR30M18A-I/RM100?
All ATSAMR30M18A-I/RM100 units undergo pre-shipment inspection (PSI). If there is an issue with ATSAMR30M18A-I/RM100, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The ATSAMR30M18A-I/RM100 part is unused and in its original packaging.
Return procedure for ATSAMR30M18A-I/RM100:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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