RN42-I/RM477

RF Transceiver Modules And Modems Overview

The RN42-I/RM477 is a Class 2 Bluetooth radio module from Microchip Technology, designed for low-power wireless connectivity. It operates at 2.4 GHz and supports Bluetooth 2.1 + EDR protocols with a data rate of up to 3 Mbps. The module features an integrated PCB trace antenna and utilizes UART serial interface communication. It functions within a voltage range of 3V to 3.6V and is rated for operation between -40°C and 85°C. Packaged in a surface-mount form factor, it provides reliable short-range wireless transmission capabilities.

RF Transceiver Modules And Modems Feature Summary

• Supports Bluetooth 2.1 + EDR protocol for enhanced data transfer speeds
• Integrates a high-performance PCB trace antenna for compact design
• Utilizes UART serial interface for straightforward host controller connection

RF Transceiver Modules And Modems Applications

• Short-range wireless data transmission systems
• Embedded devices requiring Bluetooth 2.1 connectivity
• Industrial equipment needing Class 2 radio modules

RF Transceiver Modules And Modems Procurement Notes

Verify component authenticity through authorized channels as this part is obsolete. Confirm that the specific suffix matches the required hardware revision. Check for availability of recommended substitutes due to discontinuation status. Ensure compatibility with existing firmware requirements before procurement.

RF Transceiver Modules And Modems Selection Notes

Select this module when Bluetooth 2.1 + EDR support is mandatory for legacy system integration. Consider the integrated antenna design for space-constrained applications. Evaluate power consumption profiles against system battery life requirements. Verify UART interface compatibility with the target microcontroller.

RF Transceiver Modules And Modems Part Context

This component belongs to the RN42 series of Bluetooth modules by Microchip Technology. It represents a surface-mount solution for adding wireless capability to embedded designs. The series focuses on low-power, Class 2 radios suitable for various consumer and industrial electronics applications.

RF Transceiver Modules And Modems Replacement Considerations

Microchip recommends the RN4678-V/RM122 as a manufacturer-recommended substitute. Verify pinout and firmware compatibility when transitioning to newer Bluetooth standards.