Microchip Technology

MRF49XA-I/ST  

RF Transceiver ICs

MRF49XA-I/ST Description

The MRF49XA-I/ST by Microchip Technology is a versatile RF transceiver IC designed for ISM band applications below 1GHz, supporting frequencies of 433MHz, 868MHz, and 915MHz. This surface-mount device comes in a 16-TSSOP package and integrates SPI interface for seamless communication with microcontrollers. Operating within a 2.2V to 3.8V supply range, it delivers a 7dBm output power and supports FHSS (Frequency Hopping Spread Spectrum) and FSK (Frequency Shift Keying) modulation, ensuring robust wireless performance in noisy environments. With a maximum data rate of 256kbps, it strikes a balance between speed and power efficiency, making it suitable for low-power, high-performance wireless systems.

MRF49XA-I/ST Features

• Dual-band flexibility: Operates at 433MHz, 868MHz, and 915MHz, enabling global deployment.
• Low power consumption: 11mA–13mA (Rx) and 15mA–24mA (Tx) current draw, ideal for battery-powered applications.
• High data throughput: 256kbps data rate supports demanding wireless protocols.
• Advanced modulation: FHSS and FSK enhance interference immunity and spectral efficiency.
• Compact form factor: 16-TSSOP package saves PCB space in dense designs.
• Compliance: ROHS3 and REACH compliant, meeting environmental and regulatory standards.

MRF49XA-I/ST Applications

The MRF49XA-I/ST excels in industrial, medical, and consumer wireless systems, including:

• Smart metering: Reliable data transmission in utility monitoring networks.
• Wireless sensor networks (WSNs): Low-power, long-range connectivity for IoT edge devices.
• Home automation: Secure, interference-resistant communication for smart home hubs.
• Remote controls: Robust FHSS modulation for industrial telemetry and automotive keyless entry.
• Asset tracking: Combines range and power efficiency for logistics and inventory management.

Conclusion of MRF49XA-I/ST

The MRF49XA-I/ST is a highly integrated, low-power RF transceiver tailored for ISM-band wireless systems. Its multi-frequency support, SPI interface, and advanced modulation make it a standout choice for developers prioritizing reliability, efficiency, and compact design. While marked obsolete, its performance and versatility ensure continued relevance in legacy and niche applications requiring sub-1GHz wireless connectivity. For engineers seeking a proven solution for industrial IoT, smart energy, or telemetry, the MRF49XA-I/ST remains a compelling option.

MRF49XA-I/ST Documents

Download datasheets and manufacturer documentation for MRF49XA-I/ST

Datasheets :

MRF49XA      

PCN Packaging :

Packing Changes 10/Oct/2016       Label and Packing Changes 23/Sep/2015      

Design Resources :

MRF49XA Development Tool Selector      

PCN Obsolescence/ EOL :

MRF49XA 07/Nov/2016      

HTML Datasheet :

MRF49XA      

Environmental Information :

Microchip CA Prop65       Microchip RoHS       Microchip REACH