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FGM230S Module Common Specs
Wireless System-on-Chip
- 868 MHz and 915 MHz radio
- TX power up to +14 dBm
- 32-bit ARM Cortex®-M33 with DSP instruction and floating-point unit for efficient signal processing
- 512 kB flash program memory
- 64 kB RAM data memory
- Embedded Trace Macrocell (ETM) for advanced debugging
Wide Selection of MCU peripherals
- 12-bit @ 1 Msps or 16-bit @ 76.9 ksps SAR Analog to Digital Converter (ADC)
- 2 × Analog Comparator (ACMP)
- 2 x Digital to Analog Converter (VDAC)
- Low-Energy Sensor Interface (LESENSE)
- 34 General Purpose I/O pins with output state retention and asynchronous interrupts
- 8 Channel DMA Controller
- 12 Channel Peripheral Reflex System (PRS)
- 4 × 16-bit Timer/Counter with 3 Compare/Capture/PWM channels
- 1 × 32-bit Timer/Counter with 3 Compare/Capture/PWM channels
- 32-bit Real Time Counter
- 24-bit Low Energy Timer for waveform generation
- 2 × Watchdog Timer
- 3 × Enhanced Universal Synchronous/Asynchronous Receiver/Transmitter (EUSART)
- 1 x Universal Synchronous/Asynchronous Receiver/Transmitter (UART/SPI/SmartCard (ISO 7816)/IrDA/I2S)
- 2 × I2C interface with SMBus support
- Integrated Low-Energy LCD Controller supporting up to 80 segments
- Die temperature sensor
Current Consumption
- 4.1 mA RX current at 9.6 kbps FSK, 868.42 MHz
- 4.1 mA RX current at 100 kbps GFSK, 869.85 MHz
- 4.1 mA RX current at 9.6 kbps FSK, 908.4 MHz
- 4.1 mA RX current at 100 kbps GFSK, 916 MHz
- 4.6 mA RX current at 100 kbps O-QPSK, 912 MHz
- 10.7 mA TX current at 0 dBm, 916 MHz
- 20.8 mA TX current at +10 dBm, 916 MHz
- 30.0 mA TX current at +14 dBm, 916 MHz
- 26 µA/MHz in Active Mode (EM0) at 39.0 MHz
- 1.5 µA/MHz in Deep Sleep (EM2) at 64 kB RAM retention and RTC running from LFRCO
- 0.7 µA Shutoff Mode (EM4)
Operating Range
- 1.8 to 3.6 V
- -40 °C to +105 °C
Security
- Hardware Cryptographic Acceleration for AES128/192/256, ChaCha20-Poly1305, SHA-1, SHA-2/256/384/512, ECDSA +ECDH(P-192, P-256, P-384, P-531), Ed25519 and Curve25519, J-PAKE, PBKDF2
- True Random Number Generator (TRNG)
- ARM® TrustZone®
- Secure Boot (Root of Trust Secure Loader)
- Secure Debug Unlock
- DPA Countermeasures
- Secure Key Management with PUF
- Anit-Tamper
- Secure Attestation
Receiver Performance
- -109.9 dBm sensitivity at 9.6 kbps FSK, 868.42 MHz
- -110 dBm sensitivity at 40 kbps FSK, 868.4 MHz
- -108.6 dBm sensitivity at 100 kbps GFSK, 869.85 MHz
- -109.3 dBm sensitivity at 9.6 kbps FSK, 908.42 MHz
- -109.7 dBm sensitivity at 40 kbps FSK, 908.4 MHz
- -108.1 dBm sensitivity at 100 kbps GFSK, 916 MHz
- -109.8 dBm sensitivity at 100 kbps O-QPSK, 912 MHz
Protocol Support
- Proprietary
- Connect
- WM-BUS
Packages
- 6.5 mm x 6.5 mm
Securing Your IoT Product
IoT security is key to protecting company brands, end user privacy and commercial viability of products. Vulnerabilities can be exploited through both remote Internet attacks and physical hands-on-attacks.
Developers using the Silicon Labs FGM230S family have access to the highest level of IoT security provided by Secure Vault.
FGM230S Security Features
Whitepaper: Preparing for Next-Gen Cyber Attacks on IoT

Find the Right FGM230S Module
Select Columns
Part Number | Secure Vault™ | MCU Core | Flash | RAM | Communications | Output Power (dBm) | Proprietary 2.4 GHz | Proprietary Sub-GHz | Dig I/O Pins | DAC | Cap Sense | Temp Sensor | Timers (16-bit) | Comparators | Temperature Range ºC | Package Type | Package Size (mm) | ||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Mid | ARM Cortex-M33 | 512 | 64 | 2 x I²C x I²S x USART x EUART | -24 14 | — | — | — | — | 34 | VDAC | 4 | — | 2 | -40 85 | SiP | 6.5 x 6.5 | — | |||||
High | ARM Cortex-M33 | 512 | 64 | 2 x I²C x I²S x USART x EUART | -24 14 | — | — | — | — | 34 | VDAC | 4 | — | 2 | -40 85 | SiP | 6.5 x 6.5 | — |
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FGM230S 868-915 MHz +14 dBm Secure Vault™ High Radio Board
The FGM230S Radio Board is designed to work with the WSTK main board (not included) to support the development of Wireless IoT devices based on Sub-GHz wireless protocols for Proprietary, Connect, and WM-BUS. The kit includes a +14 dBm 868-915MHz radio board that provides a complete reference design for the FGM230 SiP Module.

FGM230S 868-915 MHz +14 dBm Secure Vault™ High Radio Board
The FGM230S Radio Board is designed to work with the WSTK main board (not included) to support the development of Wireless IoT devices based on Sub-GHz wireless protocols for Proprietary, Connect, and WM-BUS. The kit includes a +14 dBm 868-915MHz radio board that provides a complete reference design for the FGM230 SiP Module.