SIWG917M121XGTBA

RF Transceiver ICS Overview

The SIWG917M121XGTBA is a Wi-Fi 6 and Bluetooth LE 5.4 System on Chip (SoC) from Silicon Labs, designed for ultra-low power IoT applications. It integrates an ARM Cortex-M4 core operating up to 180 MHz with 2 MB of stacked PSRAM and no onboard flash. The device supports the 2.4 GHz band (2.412–2.484 GHz), features a sensitivity of -95 dBm, and operates within a supply voltage range of 1.71 V to 3.63 V. It includes AI/ML capabilities and functions across a temperature range of -40°C to +85°C in a QFN 7x7 package.

RF Transceiver ICS Feature Summary

• Integrates Wi-Fi 6 and Bluetooth LE 5.4 wireless connectivity with an ARM Cortex-M4 application processor.
• Includes 2 MB of stacked PSRAM for data storage without integrated flash memory.
• Supports Matter protocol and secure cloud connectivity for IoT devices.
• Features ultra-low power operation suitable for battery-operated smart home and industrial sensors.

RF Transceiver ICS Applications

• Smart home devices
• Security cameras
• HVAC systems
• Smart sensors
• Asset tracking

RF Transceiver ICS Procurement Notes

Verify the specific suffix 'XGTBA' against the official Silicon Labs datasheet to confirm the exact pinout, thermal pad configuration, and packaging specifications. Ensure that the absence of onboard flash aligns with the target firmware storage requirements, as this variant relies entirely on external or internal SRAM resources. Cross-reference the operating temperature range and voltage limits with the system design constraints before finalizing the procurement order.

RF Transceiver ICS Selection Notes

Select this component when a combination of Wi-Fi 6 throughput and Bluetooth LE 5.4 connectivity is required alongside significant RAM capacity for local processing. The inclusion of AI/ML acceleration makes it suitable for edge computing tasks. Consider the lack of onboard flash if external memory interfaces are preferred or if the system architecture utilizes external storage solutions. Evaluate the QFN package size against available PCB real estate.

RF Transceiver ICS Part Context

This part belongs to the SiWG917 series of wireless SoCs from Silicon Labs. It is positioned as a secure MCU solution for IoT devices requiring long battery life and robust wireless standards. The series emphasizes low power consumption and high performance through its integrated ThreadArch and Cortex-M4 subsystems, targeting modern smart building and consumer electronics markets.

RF Transceiver ICS Replacement Considerations

Public confirmed substitute part numbers: SIWG917M141XGTBA (features 8MB stacked PSRAM instead of 2MB).

RF Transceiver ICS FAQ

Does the SIWG917M121XGTBA include onboard flash memory?

No, this specific model does not include onboard flash memory; it provides 2 MB of stacked PSRAM.

What wireless protocols are supported by this SoC?

It supports Wi-Fi 6 (802.11ax/b/g/n) and Bluetooth Low Energy 5.4, including Matter protocol support.