EFR32FG23 Flex Gecko Wireless SoCs

Silicon Labs EFR32FG23 Flex Gecko Wireless SoCs (System-on-a-Chip) are ideal for sub-GHz loT wireless connectivity for smart home, security, lighting, building automation and metering. The EFR32FG23 are high-performance sub-GHz radios that provide long range and are not susceptible to 2.4GHz interference from technologies. The single-die, multi-core solution provides industry-leading security, low power consumption with fast wakeup times. An integrated power amplifier to enable the next generation of secure connectivity for loT devices. Silicon Labs EFR32FG23 Flex Gecko Wireless SoCs are available in 40-pin and 48-pin Quad Flat No-Lead (QFN) packages with a wide -40°C to +125°C operating temperature range.

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Silicon Labs RF System on a Chip - SoC FG23, Sub-GHz, 512kB Flash, 64kB RAM, +14 dBm, XOUT, QFN40
Datasheet
7’845In Stock
Min.: 1
Mult.: 1
: 2’500

RF System on a Chip - SoC SMD/SMT QFN-40 ARM Cortex M33 32 bit 78 MHz 512 kB 64 kB 12 bit, 16 bit 22 I/O - 40 C + 85 C Reel, Cut Tape
Silicon Labs RF System on a Chip - SoC FG23, Sub-GHz, 256kB Flash, 32kB RAM, +20 dBm, QFN48
Datasheet
2’384In Stock
Min.: 1
Mult.: 1
: 2’500

RF System on a Chip - SoC SMD/SMT QFN-48 ARM Cortex M33 32 bit 78 MHz 256 kB 32 kB 12 bit, 16 bit 31 I/O - 40 C + 85 C Reel, Cut Tape

Silicon Labs RF System on a Chip - SoC FG23, Sub-GHz, 512kB Flash, 64kB RAM, +14 dBm, Secure Vault-High, +125C, QFN40
Datasheet
1’720In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 2’500

RF System on a Chip - SoC SMD/SMT QFN-40 ARM Cortex M33 32 bit 78 MHz 512 kB 64 kB 12 bit, 16 bit 23 I/O - 40 C + 125 C Reel, Cut Tape, MouseReel
Silicon Labs RF System on a Chip - SoC FG23, Sub-GHz, 512kB Flash, 64kB RAM, +14 dBm, Secure Vault-High, +125C, QFN48
Datasheet
2’904In Stock
Min.: 1
Mult.: 1
: 2’500

RF System on a Chip - SoC SMD/SMT QFN-48 ARM Cortex M33 32 bit 78 MHz 512 kB 64 kB 12 bit, 16 bit 31 I/O - 40 C + 125 C Reel, Cut Tape

Silicon Labs RF System on a Chip - SoC FG23, Sub-GHz, 256kB Flash, 32kB RAM, +20 dBm, QFN40
Datasheet
3’903In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 2’500

RF System on a Chip - SoC SMD/SMT QFN-40 ARM Cortex M33 32 bit 78 MHz 256 kB 32 kB 12 bit, 16 bit 23 I/O - 40 C + 85 C Reel, Cut Tape, MouseReel
Silicon Labs RF System on a Chip - SoC FG23, Sub-GHz, 256kB Flash, 32kB RAM, +14 dBm, QFN48
Datasheet
1’113In Stock
Min.: 1
Mult.: 1
: 2’500

RF System on a Chip - SoC SMD/SMT QFN-48 ARM Cortex M33 32 bit 78 MHz 256 kB 32 kB 12 bit, 16 bit 31 I/O - 40 C + 85 C Reel, Cut Tape
Silicon Labs RF System on a Chip - SoC FG23, Sub-GHz, 512kB Flash, 64kB RAM, +14 dBm, QFN48
Datasheet
3’565In Stock
Min.: 1
Mult.: 1

RF System on a Chip - SoC SMD/SMT QFN-48 ARM Cortex M33 512 kB - 40 C + 85 C Tray
Silicon Labs RF System on a Chip - SoC FG23, Sub-GHz, 256kB Flash, 32kB RAM, +20 dBm, QFN40
Datasheet
561In Stock
Min.: 1
Mult.: 1

RF System on a Chip - SoC SMD/SMT QFN-40 ARM Cortex M33 256 kB - 40 C + 85 C Tray

Silicon Labs RF System on a Chip - SoC FG23, Sub-GHz, 128kB Flash, 32kB RAM, +14 dBm, Secure Vault-High, QFN40
Datasheet
1’820In Stock
Min.: 1
Mult.: 1
: 2’500

RF System on a Chip - SoC SMD/SMT QFN-40 ARM Cortex M33 32 bit 78 MHz 128 kB 32 kB 12 bit, 16 bit 23 I/O - 40 C + 85 C Reel, Cut Tape

Silicon Labs RF System on a Chip - SoC FG23, Sub-GHz, 512kB Flash, 64kB RAM, +20 dBm, XOUT, QFN40
Datasheet
2’410In Stock
Min.: 1
Mult.: 1
: 2’500

RF System on a Chip - SoC SMD/SMT QFN-40 ARM Cortex M33 32 bit 78 MHz 512 kB 64 kB 12 bit, 16 bit 22 I/O - 40 C + 85 C Reel, Cut Tape
Silicon Labs 32-bit Microcontrollers - MCU FG23L, 128kB Flash, 32kB RAM, +14 dBm, QFN40, -40 to +85 C
Datasheet
2’214In Stock
Min.: 1
Mult.: 1

32-bit Microcontrollers - MCU SMD/SMT QFN-40 128 kB 32 kB - 40 C + 85 C Tray
Silicon Labs 32-bit Microcontrollers - MCU FG23L, 128kB Flash, 32kB RAM, +20 dBm, QFN40, -40 to +85 C
Datasheet
2’391In Stock
Min.: 1
Mult.: 1

32-bit Microcontrollers - MCU SMD/SMT QFN-40 128 kB 32 kB - 40 C + 85 C Tray
Silicon Labs RF System on a Chip - SoC FG23, Sub-GHz, 512kB Flash, 64kB RAM, +14 dBm, Secure Vault-High, +125C, QFN48
Datasheet
49In Stock
Min.: 1
Mult.: 1
: 2’500

RF System on a Chip - SoC SMD/SMT QFN-48 ARM Cortex M33 512 kB - 40 C + 125 C Reel, Cut Tape
Silicon Labs RF System on a Chip - SoC FG23, Sub-GHz, 512kB Flash, 64kB RAM, +20 dBm, XOUT, QFN40
Datasheet
3’017In Stock
Min.: 1
Mult.: 1

RF System on a Chip - SoC SMD/SMT QFN-40 ARM Cortex M33 512 kB - 40 C + 85 C Tray
Silicon Labs RF System on a Chip - SoC FG23, Sub-GHz, 512kB Flash, 64kB RAM, +20 dBm, QFN48
Datasheet
2’672In Stock
Min.: 1
Mult.: 1

RF System on a Chip - SoC SMD/SMT QFN-48 ARM Cortex M33 512 kB - 40 C + 85 C Tray
Silicon Labs RF System on a Chip - SoC FG23, Sub-GHz, 256kB Flash, 32kB RAM, +20 dBm, QFN48
Datasheet
321In Stock
Min.: 1
Mult.: 1

RF System on a Chip - SoC SMD/SMT QFN-48 ARM Cortex M33 256 kB - 40 C + 85 C Tray
Silicon Labs RF System on a Chip - SoC FG23, Sub-GHz, 512kB Flash, 64kB RAM, +14 dBm, QFN48
Datasheet
6’550In Stock
Min.: 1
Mult.: 1
: 2’500

RF System on a Chip - SoC SMD/SMT QFN-48 ARM Cortex M33 32 bit 78 MHz 512 kB 64 kB 12 bit, 16 bit 31 I/O - 40 C + 85 C Reel, Cut Tape
Silicon Labs RF System on a Chip - SoC FG23, Sub-GHz, 512kB Flash, 64kB RAM, +14 dBm, QFN48
Datasheet
2’435In Stock
Min.: 1
Mult.: 1

RF System on a Chip - SoC SMD/SMT QFN-48 ARM Cortex M33 32 bit 78 MHz 512 kB 64 kB 12 bit, 16 bit 31 I/O - 40 C + 85 C Tray
Silicon Labs RF System on a Chip - SoC FG23, Sub-GHz, 256kB Flash, 32kB RAM, +14 dBm, QFN40
Datasheet
24In Stock
Min.: 1
Mult.: 1

RF System on a Chip - SoC SMD/SMT QFN-40 ARM Cortex M33 256 kB - 40 C + 85 C Tray
Silicon Labs RF System on a Chip - SoC FG23, Sub-GHz, 128kB Flash, 32kB RAM, +14 dBm, Secure Vault-High, QFN40
Datasheet
120In Stock
Min.: 1
Mult.: 1

RF System on a Chip - SoC SMD/SMT QFN-40 ARM Cortex M33 128 kB - 40 C + 85 C Tray

Silicon Labs RF System on a Chip - SoC FG23, Sub-GHz, 256kB Flash, 32kB RAM, +14 dBm, QFN40
Datasheet
2’500Expected 8/13/2026
Min.: 1
Mult.: 1
: 2’500

RF System on a Chip - SoC SMD/SMT QFN-40 ARM Cortex M33 32 bit 78 MHz 256 kB 32 kB 12 bit, 16 bit 23 I/O - 40 C + 85 C Reel, Cut Tape
Silicon Labs RF System on a Chip - SoC FG23, Sub-GHz, 256kB Flash, 32kB RAM, +14 dBm, QFN48
Datasheet
1’337Expected 10/23/2026
Min.: 1
Mult.: 1

RF System on a Chip - SoC SMD/SMT QFN-48 ARM Cortex M33 32 bit 78 MHz 256 kB 32 kB 12 bit, 16 bit 31 I/O - 40 C + 85 C Tray

Silicon Labs RF System on a Chip - SoC FG23, Sub-GHz, 128kB Flash, 32kB RAM, +14 dBm, Secure Vault-High, QFN40
Datasheet
Non-Stocked Lead-Time 12 Weeks
Min.: 2’450
Mult.: 2’450

RF System on a Chip - SoC SMD/SMT QFN-40 ARM Cortex M33 32 bit 78 MHz 128 kB 32 kB 12 bit, 16 bit 23 I/O - 40 C + 85 C Tray

Silicon Labs RF System on a Chip - SoC FG23, Sub-GHz, 512kB Flash, 64kB RAM, +14 dBm, QFN40
Datasheet
Non-Stocked Lead-Time 12 Weeks
Min.: 2’500
Mult.: 2’500
: 2’500

RF System on a Chip - SoC SMD/SMT QFN-40 ARM Cortex M33 32 bit 78 MHz 512 kB 64 kB 12 bit, 16 bit 23 I/O - 40 C + 85 C Reel

Silicon Labs RF System on a Chip - SoC FG23, Sub-GHz, 512kB Flash, 64kB RAM, +14 dBm, Secure Vault-High, +125C, QFN40
Datasheet
Non-Stocked Lead-Time 12 Weeks
Min.: 2’450
Mult.: 2’450

RF System on a Chip - SoC SMD/SMT QFN-40 ARM Cortex M33 32 bit 78 MHz 512 kB 64 kB 12 bit, 16 bit 23 I/O - 40 C + 125 C Tray