EFR32FG1P131F256GM32-C0 Silicon Labs Integrated Circuit (Quad Flat No-Lead) In Stock
EFR32FG1P131F256GM32-C0 is a Silicon Labs Flex Gecko multi-protocol sub-GHz RF SoC with an ARM Cortex-M4 core at up to 40 MHz, 256 kB flash, and integrated 868 MHz transceiver in a 32-pin QFN package. It supports proprietary sub-GHz protocols with TX power up to +13 dBm and RX sensitivity down to -107 dBm for long-range wireless links. This SoC suits smart metering, building automation, industrial wireless sensors, and IoT applications requiring secure, low-power sub-GHz connectivity.
- Manufacturer
- Silicon Labs
- Package
- Quad Flat No-Lead
- Pin Count
- 33
- Lifecycle
- ACTIVE
- Category
- Integrated Circuit
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- ARM Cortex-M4 core at up to 40 MHz with 256 kB flash and 32 kB RAM for embedded application processing
- Integrated 868 MHz sub-GHz transceiver with +13 dBm TX power and -107 dBm RX sensitivity for long-range IoT links
- Multi-protocol Flex radio supports proprietary sub-GHz stacks including Z-Wave and other custom PHY layers
- Ultra-low-power sleep modes below 1 µA extend battery life in coin-cell-powered wireless sensor nodes
- Compact 32-pin QFN package enables integration in space-constrained smart meter and industrial IoT modules
Applications
The EFR32FG1P131F256GM32-C0 is well suited for smart metering systems, industrial wireless sensor networks, and building automation controllers where reliable long-range sub-GHz communication at 868 MHz is needed alongside on-chip ARM Cortex-M4 processing. Its low-power architecture with sub-1 µA sleep current makes it ideal for battery-powered IoT nodes such as smoke detectors, door-window sensors, and environmental monitors that require years of field operation. The device also targets utility AMI (Advanced Metering Infrastructure) and smart home gateways that combine wireless connectivity with local data processing in a single compact chip.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What RF frequency, TX power, and RX sensitivity does EFR32FG1P131F256GM32-C0 achieve for sub-GHz links?
The EFR32FG1P131F256GM32-C0 operates at 868 MHz with a maximum TX output power of +13 dBm and an RX sensitivity of -107 dBm. This combination enables link budgets exceeding 120 dB, supporting reliable communication over distances of several hundred meters in open-field conditions or through multiple walls in indoor building automation deployments.
How much on-chip flash and RAM does EFR32FG1P131F256GM32-C0 provide for application firmware?
The EFR32FG1P131F256GM32-C0 integrates 256 kB of flash memory and 32 kB of RAM, providing enough storage and working memory for a complete sub-GHz wireless protocol stack plus application code. The ARM Cortex-M4 core running at up to 40 MHz handles real-time sensor data processing and protocol scheduling without requiring an external microcontroller.
For a battery-powered smart meter node, how long can EFR32FG1P131F256GM32-C0 operate on a pair of AA batteries?
In deep sleep mode, the EFR32FG1P131F256GM32-C0 draws less than 1 µA, enabling a duty-cycled smart meter node powered by 2x AA batteries (approximately 3000 mAh total) to operate for over 10 years when transmitting short 868 MHz packets once every 30 seconds at +10 dBm. Active RX current is typically around 9 mA at 868 MHz, so minimizing RX window duration is key to maximizing battery life.
Does EFR32FG1P131F256GM32-C0 support proprietary sub-GHz protocols, and can it run Z-Wave?
Yes, the EFR32FG1P131F256GM32-C0 is a Flex Gecko device that supports both proprietary sub-GHz PHY/MAC layers and the Z-Wave protocol at 868 MHz through Silicon Labs' Simplicity Studio SDK. The flexible radio architecture allows designers to implement custom data rates from 0.6 kbps to 1 Mbps, adapting the device to diverse smart home, industrial, and utility metering wireless standards in the 32-pin QFN package.
Related Guides
ECMF02-4CMX8 Common-Mode Filter with ESD Protection: Selection Guide
Compare ECMF02-4CMX8 vs ECMF02-2AMX6, ECMF04-4HSM10, and other ST ECMF filters. Choose the right 4-channel common-mode filter with ESD protection for USB 2.0.
Jun 20, 2026
AD5204 Quad Digital Potentiometer Selection Guide (2026)
How to choose the right AD5204 quad digital potentiometer: compare 10kΩ vs 100kΩ variants, TSSOP vs SOIC packages, and SPI interface options for your design.
Jun 20, 2026
0402 10uF X5R Decoupling Design Guide for Compact Digital Rails
Application note for using CL05A106MP5NUNC-class 0402 10uF X5R MLCCs in compact digital rail decoupling designs.
Jun 19, 2026
How to Choose an 0805 10uF MLCC for Decoupling and Bulk Capacitance
Selection guide for choosing 0805 10uF MLCCs around CL21A106KOQNNNE, covering derating, dielectric, package, and sourcing checks.
Jun 19, 2026
Why Buy from FindMyChip
About Silicon Labs
Silicon Labs is a leading electronic component manufacturer. FindMyChip sources Silicon Labs ICs directly from authorized China distributors, offering competitive pricing and reliable stock.
In Stock · 24h Response · Worldwide Shipping
Response within 24 hours · Worldwide shipping
“Response time is incredible — usually under 4 hours. They understand that production lines can't wait.”