ATSAMW25H18-MR510PA Microchip Inductor (Other) In Stock
Microchip ATSAMW25H18-MR510PA is an IEEE 802.11b/g/n Wi-Fi module operating at 2.4 GHz with SPI and UART interfaces, integrating a 32-bit ARM Cortex-M0 MCU and on-board antenna. It provides 18 dBm transmit power and is designed for low-power IoT and embedded wireless connectivity applications.
- Manufacturer
- Microchip
- Package
- Other
- Pin Count
- 59
- Lifecycle
- ACTIVE
- Datasheet
- ATSAMW25H18-MR510PA Datasheet PDF
- Category
- Inductor
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- IEEE 802.11b/g/n dual-mode Wi-Fi at 2.484 GHz with 18 dBm transmit power and integrated antenna for reliable wireless range in embedded IoT systems
- Integrated 32-bit ARM Cortex-M0 MCU with SPI and UART host interfaces simplifies host firmware integration without an external Wi-Fi controller
- Compact module footprint with pre-certified RF design reduces time-to-market for wireless IoT products requiring FCC/CE/IC certification compliance
Applications
The ATSAMW25H18-MR510PA is designed for IoT edge nodes, smart home devices, and industrial wireless sensors that require 2.4 GHz Wi-Fi connectivity with a minimal host-side component count. Its integrated MCU and SPI/UART interface allow microcontrollers operating at 3.3 V to offload Wi-Fi stack processing, making it suitable for battery-powered data loggers, HVAC controllers, and machine-monitoring nodes transmitting sensor data at rates up to 54 Mbps.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for ATSAMW25H18-MR510PA:
Frequently Asked Questions
What wireless standard and frequency does the ATSAMW25H18-MR510PA support, and what is its transmit power?
The ATSAMW25H18-MR510PA supports IEEE 802.11b/g/n Wi-Fi in the 2.4 GHz band (up to 2.484 GHz) with a transmit power of 18 dBm. It can achieve data rates up to 54 Mbps in 802.11g mode, providing adequate bandwidth for most IoT sensor data and remote monitoring applications.
How does the ATSAMW25H18-MR510PA's integrated ARM Cortex-M0 reduce hardware complexity in a 3.3 V IoT gateway design?
The onboard ARM Cortex-M0 processor offloads the TCP/IP and Wi-Fi MAC stack from the host MCU, allowing a simple 3.3 V SPI or UART interface to carry application-layer commands. This eliminates the need for an external Wi-Fi controller IC and its supporting passives, reducing BOM count by approximately 10–15 components and simplifying PCB layout for compact IoT gateway designs.
For a battery-powered industrial sensor that transmits data every 30 seconds, how does the ATSAMW25H18-MR510PA's low-power mode extend device life?
The ATSAMW25H18-MR510PA supports IEEE 802.11 power-save mode and low-power sleep states, where current consumption can drop to the microampere range between transmit bursts. For a sensor transmitting a 256-byte packet every 30 seconds with an 18 dBm peak current around 280 mA during transmission, average current consumption can remain below 1 mA, enabling multi-year operation from a 2000 mAh lithium battery.
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