Specification	RN42SM-I/RM

Antenna Type	Chip, Integrated
Current - Receiving	35 mA
Current - Transmitting	65 mA
Data Rate	3 Mbps
Firmware Version	6.3
Frequency	2.4 GHz
Modulation	GFSK, FHSS
Mounting Type	Surface Mount
Operating Temperature (Max)	85 °C
Operating Temperature (Min)	-40 °C
Package / Case	Module
Power - Output	2 dBm
Protocol	Class 2, Bluetooth v2.1 +EDR
RF Family/Standard	Bluetooth
Sensitivity	-80 dBm
Serial Interfaces	UART
Voltage - Supply	3.3 V

RN42 Series

Part	Firmware Version	Protocol	Sensitivity	Antenna Type	Data Rate	Current - Receiving	Frequency	Package / Case	Serial Interfaces	RF Family/Standard	Mounting Type	Power - Output	Voltage - Supply (Maximum)	Voltage - Supply (Minimum)	Modulation	Current - Transmitting	Operating Temperature (Min)	Operating Temperature (Max)	Voltage - Supply
Microchip Technology RN42XVP-I/RM	6.3	Bluetooth v2.1 +EDR Class 2	-86 dBm	Integrated Trace	300 kbps	35 mA	2.4 GHz	20-DIP Module	UART	Bluetooth	Through Hole	4 dBm	3.6 V	3 V	FHSS GFSK	65 mA	-40 °C	85 °C
Microchip Technology RN42APL-I/RM		Bluetooth v2.1 + EDR Class 2	-86 dBm	PCB Trace	3 Mbps		2.4 GHz	35-SMD Module	SPI UART	Bluetooth	Surface Mount	4 dBm	3.6 V	3 V			-40 °C	85 °C
Microchip Technology RN42APL-I/RM543		Bluetooth v2.1 + EDR Class 2	-86 dBm	PCB Trace	3 Mbps		2.4 GHz	35-SMD Module	SPI UART	Bluetooth	Surface Mount	4 dBm	3.6 V	3 V			-40 °C	85 °C
Microchip Technology RN42APL-I/RM545		Bluetooth v2.1 + EDR Class 2	-86 dBm	PCB Trace	3 Mbps		2.4 GHz	35-SMD Module	SPI UART	Bluetooth	Surface Mount	4 dBm	3.6 V	3 V			-40 °C	85 °C
Microchip Technology RN42NHCI-I/RM	HCI	Bluetooth v2.1 +EDR Class 2	-80 dBm	Antenna Not Included U.FL	300 kbps		2.4 GHz	Module	UART	Bluetooth	Surface Mount	4 dBm	3.6 V	3 V		30 mA	-40 °C	85 °C
Microchip Technology RN42-I/RM477		Bluetooth v2.1 + EDR Class 2	-86 dBm	PCB Trace	3 Mbps		2.4 GHz	35-SMD Module	SPI UART	Bluetooth	Surface Mount	4 dBm	3.6 V	3 V			-40 °C	85 °C
Microchip Technology RN42SM-I/RM	6.3	Bluetooth v2.1 +EDR Class 2	-80 dBm	Chip Integrated	3 Mbps	35 mA	2.4 GHz	Module	UART	Bluetooth	Surface Mount	2 dBm			FHSS GFSK	65 mA	-40 °C	85 °C	3.3 V
Microchip Technology RN42-I/RM	6.15	Bluetooth v2.1 +EDR Class 2	-80 dBm	Integrated Trace	300 kbps		2.4 GHz	35-SMD Module	UART	Bluetooth	Surface Mount	4 dBm	3.6 V	3 V		30 mA	-40 °C	85 °C
Microchip Technology RN42N-I/RM	6.15	Bluetooth v2.1 +EDR Class 2	-80 dBm	Antenna Not Included U.FL	300 kbps		2.4 GHz	24-SMD Module	UART	Bluetooth	Surface Mount	4 dBm	3.6 V	3 V		30 mA	-40 °C	85 °C
Microchip Technology RN42-I/RM630	6.3	Bluetooth v2.1 + EDR Class 2	-80 dBm	Integrated Trace	3 Mbps	40 mA	2.4 GHz	Module	SPI UART USB	Bluetooth	Surface Mount	4 dBm	3.6 V	3 V		45 mA	-40 °C	85 °C

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

Distributor	Package	Quantity	$	Updated

CAD

3D models and CAD resources for this part

Description

General part information

RN42 Series

Note: The Bluetooth SIG has deprecated and withdrawn Bluetooth 2.1 specification as of July 1, 2020. Existing RN42 and RN42N designs that are already Bluetooth certified are not affected. However, new RN42 and RN42N designs requiring Bluetooth certification cannot be certified as Bluetooth SIG has withdrawn Bluetooth v2.1. More information from Bluetooth SIG on Bluetooth 2.1 can be found here.

The RN42 is a small form factor, low power, Class 2 Bluetooth radio for designers who want to add wireless capability to their products. The RN42 supports multiple interface protocols, is simple to design in, and is fully certified, making it a complete embedded Bluetooth solution. The RN42 is functionally compatible with the [RN41](https://www.microchip.com/en-us/product/rn41). With its high-performance PCB trace antenna and support for Bluetooth EDR, the RN42 delivers up to 3 Mbps data rate for distances up to 20 meters.

The RN42 is available without an antenna (**RN42N**). This is useful when the application requires an external antenna. The RN42N is form, function, and pin compatible with the RN42.

Documents

Technical documentation and resources

RN Bluetooth User Guide

Datasheet

RN42SM-I/RM | Datasheet

Datasheet