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XB3-24Z8CM-J

XB3-24Z8CM-J

Digi
802.15.4 Zigbee® Transceiver Module 2.4GHz Integrated, Chip Surface Mount
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Overview

The XB3-24Z8CM-J is a micro-form-factor Zigbee 3.0 module from the Digi XBee 3 series, powered by the Silicon Labs EFR32MG SoC. It provides a pre-certified 2.4GHz RF solution with an integrated chip antenna, supporting 802.15.4 standards for mesh networking. This module features a Cortex-M4 core and is designed for low-power wireless applications requiring a compact footprint.

Why Choose This Part

This module offers a significant footprint reduction through its Micro (MMT) package while maintaining compatibility with the XBee ecosystem. It delivers high sensitivity of -103dBm for robust links and features a low sleep current of 2uA for extended battery life in remote nodes. The inclusion of I2C, SPI, and UART interfaces provides flexible connectivity for various host microcontrollers and sensors.

Applications

Smart Lighting Control
Utilizing Zigbee mesh networking to manage large-scale indoor and outdoor lighting arrays with reliable command propagation.
Building Automation
Integrating environmental sensors and HVAC controllers into a unified building management system using low-power wireless links.
Industrial IoT Monitoring
Deploying battery-powered sensor nodes in industrial environments where the 128KB RAM and 1MB Flash support local data processing.
Digital Health Infrastructure
Connecting medical monitoring devices within a facility using the secure and interoperable Zigbee protocol.

Key Specifications

Protocol Zigbee
Data Rate 250kbps
Frequency 2.4GHz
Modulation DSSS
Memory Size 1MB Flash, 128kB RAM
Sensitivity -103dBm
Antenna Type Integrated, Chip
Mounting Type Surface Mount
Package / Case 34-SMD Module
Power - Output 8dBm
Voltage - Supply 2.1V ~ 3.6V
Serial Interfaces I2C, SPI, UART
RF Family/Standard 802.15.4
Utilized IC / Part EFR32MG
Current - Receiving 15mA
Operating Temperature -40degC ~ 85degC
Current - Transmitting 40mA

Getting Started

Developers can evaluate this module using the XBee 3 Development Kit and the Digi XCTU configuration software for rapid prototyping. The module supports MicroPython for on-board logic, allowing developers to write application code directly on the EFR32MG without an external MCU. Design integration involves providing a stable 2.1V to 3.6V supply and ensuring proper keep-out areas around the integrated chip antenna.

Also Consider

XB3-24Z8UM-J Digi - Select this version if an external antenna is required via the integrated U.FL connector for better range or metallic enclosures.
MGM210P Mighty Gecko Module SiLSilicon Labs - A direct alternative based on the same EFR32 platform for users who do not require the specific XBee form factor or software ecosystem.
EFR32MG24 SoC SiLSilicon Labs - Recommended for high-volume production where a discrete SoC design is more cost-effective than a pre-certified module.