EM346-RTR

RF Transceiver ICS Overview

The EM346-RTR is a Silicon Labs RF System on a Chip (SoC) designed for ZigBee and 802.15.4 applications, operating at 2.4 GHz. It integrates an ARM Cortex-M3 core with 192 kB of Flash memory and 12 kB of RAM. The device features a maximum output power of 8 dBm and a sensitivity of -102 dBm. It supports data rates up to 5 Mbps and operates within a voltage range of 2.1 V to 3.6 V. The component is housed in a 48-VFQFN package with an exposed pad, suitable for surface mount installation.

RF Transceiver ICS Feature Summary

• Integrates an ARM Cortex-M3 processor with dedicated RF transceiver capabilities for efficient wireless communication.
• Supports ZigBee PRO and IEEE 802.15.4 standards for reliable low-rate wireless personal area networks.
• Provides high transmission power and receiver sensitivity to ensure robust signal integrity in crowded frequency bands.

RF Transceiver ICS Applications

• ZigBee PRO network devices
• RF4CE target implementations
• Low-power sensor nodes
• Home automation controllers

RF Transceiver ICS Procurement Notes

Verify the current lifecycle status before procurement, as this component may be designated as Not Recommended for New Designs (NRND). Confirm that the 48-VFQFN package dimensions align with your PCB footprint requirements. Ensure that the firmware environment supports the specific memory configuration of 192 kB Flash and 12 kB RAM. Check for any Process Change Notices affecting manufacturing sources or material composition prior to finalizing supply agreements.

RF Transceiver ICS Selection Notes

Select this SoC when a combined MCU and RF solution is required for 2.4 GHz ZigBee applications. It is appropriate for designs needing moderate program storage and processing power without external memory components. Consider the thermal performance of the QFN package in dense layouts. Evaluate the 8 dBm output power against link budget requirements to determine if additional amplification is necessary for extended range scenarios.

RF Transceiver ICS Part Context

The EM346-RTR belongs to the EM34x series of wireless microcontrollers from Silicon Labs. This series targets cost-sensitive and space-constrained IoT applications requiring standardized wireless protocols. It serves as a foundational component for building mesh networks and point-to-point links in consumer electronics and industrial monitoring systems where integrated processing and radio functions are preferred over discrete solutions.

RF Transceiver ICS Replacement Considerations

Public confirmed substitute part numbers include EM341-RT, EM342-RT, and EM357PxxxxAGMR. Verify pin compatibility and software library support when transitioning between these variants. Note that some alternatives may offer different memory sizes or package types, requiring schematic and layout adjustments.