RN2903 Series

Catalog

TRANSCEIVER MODULE, LOW POWER, FSK, GFSK, LORA, 300 KBPS, 928 MHZ, -146 DBM, 2.1 V TO 3.6 V

Part	Current - Transmitting [Min]	Current - Transmitting [Max]	Sensitivity	Modulation	Voltage - Supply [Min]	Voltage - Supply [Max]	RF Family/Standard	Frequency [Min]	Frequency [Max]	Power - Output	Package / Case	Mounting Type	Serial Interfaces	Operating Temperature [Max]	Operating Temperature [Min]	Protocol	Antenna Type	Current - Receiving	Frequency	Current - Transmitting	Firmware Version	Current - Receiving [Max]	Current - Receiving [Min]
Microchip Technology RN2903A-I/RM105	42.6 mA	124.4 mA	-146 dBm	FSK GFSK	2.1 V	3.6 V	General ISM < 1GHz	902 MHz	928 MHz	18.5 dBm	Module	Surface Mount	I2C SPI UART	85 °C	-40 °C	LoRa™	Antenna Not Included Castellation
Microchip Technology RN2903-I/RM095			-146 dBm	FSK GFSK	2.1 V	3.6 V	General ISM < 1GHz			18.5 dBm	Module	Surface Mount	I2C SPI UART	85 °C	-40 °C	LoRa™	Antenna Not Included SMA	13.5 mA	915 MHz	125 mA	0.9.5
Microchip Technology RN2903A-I/RMSA103	105 mA	122 mA	-146 dBm	FSK GFSK	2.1 V	3.6 V	General ISM < 1GHz	902 MHz	928 MHz	18.5 dBm	47-SMD Module	Surface Mount	UART	85 °C	-40 °C	LoRa™	Antenna Not Included Castellation					3.1 mA	1.8 mA

Catalog

Key Features

• * On-board LoRaWAN Class A and Class C protocol stack

• * ASCII command interface over UART

• * Compact form factor 17.8 x 26.7 x 3 mm

• * Castellated SMT pads for easy and reliable PCB mounting

• * Device Firmware Upgrade (DFU) over UART

• * 14 GPIO for control, status, and ADC

• * Highly integrated module with MCU, crystal, EUI-64 Node Identity Serial EEPROM, Radio transceiver with analog front end, and matching circuitry

• * Environmentally friendly, RoHS compliant

• * FCC and IC Certified

• * ANATEL Certified

Description

The RN2903 is a fully-certified 915 MHz module based on wireless LoRa® technology. The RN2903 utilizes a unique spread spectrum modulation within the Sub-GHz band to enable long range, low power, and high network capacity. The module's embedded LoRaWAN Class A and Class C protocol enables seamless connectivity to any LoRaWAN compliant network infrastructure, whether public or privately deployed. The module is specifically designed for ease of use, which shortens development time and speeds time to market. LoRa technology is ideal for battery-operated sensors and low power applications such as IoT, M2M, Smart City, Sensor networks, Industrial automation, and more. LoRaWAN frequency bands supported: US902-928: RN2903A-I/RM AU915-928: RN2903A-I/RMSA Microchip's complimentary and confidential [Wireless Check online design review service](https://www.microchip.com/design-check-services) is available for customers who have selected our products for their application design-in\*. \*The online design review service is subject to Microchip's [Program Terms and Conditions](https://www.microchip.com/design-check-services-program-terms-and-conditions) and requires a myMicrochip account.