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EFR32FG23 Flex Gecko Wireless SoCs

Silicon Labs EFR32FG23 Flex Gecko Wireless SoCs (System-on-a-Chip) are ideal for sub-GHz Internet of Things (IoT) 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 and low power consumption with fast wakeup times. An integrated power amplifier enables the next generation of secure connectivity for IoT devices. The EFR32FG23L variants are low-power. 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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Part #

RF System on a Chip - SoC FG23, Sub-GHz, 512kB Flash, 64kB RAM, +14 dBm, XOUT, QFN40

EFR32FG23A011F512GM40-CR
Silicon Labs
1: S/26.51
7,845In Stock

Mfr. Part #
EFR32FG23A011F512GM40-CR

Mouser Part #
634-FG2311F512GM40CR

Silicon Labs

RF System on a Chip - SoC FG23, Sub-GHz, 512kB Flash, 64kB RAM, +14 dBm, XOUT, QFN40

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Datasheet

7,845In Stock

Cut Tape

S/26.51

S/20.32

S/18.76

S/17.09

View

Reel

S/15.38

Min.: 1
Mult.: 1

: 2,500

RF System on a Chip - SoC FG23, Sub-GHz, 256kB Flash, 32kB RAM, +20 dBm, QFN48

EFR32FG23A020F256GM48-CR
Silicon Labs
1: S/24.13
2,384In Stock

Mfr. Part #
EFR32FG23A020F256GM48-CR

Mouser Part #
634-FG2320F256GM48CR

Silicon Labs

RF System on a Chip - SoC FG23, Sub-GHz, 256kB Flash, 32kB RAM, +20 dBm, QFN48

Learn More

Datasheet

2,384In Stock

Cut Tape

S/24.13

S/18.49

S/17.09

S/15.53

View

Reel

S/12.65

Min.: 1
Mult.: 1

: 2,500

RF System on a Chip - SoC FG23, Sub-GHz, 512kB Flash, 64kB RAM, +14 dBm, Secure Vault-High, +125C, QFN40

EFR32FG23B010F512IM40-CR
Silicon Labs
1: S/24.72
1,720In Stock

Mfr. Part #
EFR32FG23B010F512IM40-CR

Mouser Part #
634-FG2310F512IM40CR

Silicon Labs

RF System on a Chip - SoC FG23, Sub-GHz, 512kB Flash, 64kB RAM, +14 dBm, Secure Vault-High, +125C, QFN40

Learn More

Datasheet

1,720In Stock

Cut Tape

S/24.72

S/18.96

S/17.52

S/15.92

S/15.61

Reel

S/14.40

MouseReel Available

Min.: 1
Mult.: 1

: 2,500

RF System on a Chip - SoC FG23, Sub-GHz, 512kB Flash, 64kB RAM, +14 dBm, Secure Vault-High, +125C, QFN48

EFR32FG23B010F512IM48-CR
Silicon Labs
1: S/29.62
2,904In Stock

Mfr. Part #
EFR32FG23B010F512IM48-CR

Mouser Part #
634-FG2310F512IM48CR

Silicon Labs

RF System on a Chip - SoC FG23, Sub-GHz, 512kB Flash, 64kB RAM, +14 dBm, Secure Vault-High, +125C, QFN48

Learn More

Datasheet

2,904In Stock

Cut Tape

S/29.62

S/22.85

S/21.14

S/19.27

View

Reel

S/19.07

Min.: 1
Mult.: 1

: 2,500

RF System on a Chip - SoC FG23, Sub-GHz, 256kB Flash, 32kB RAM, +20 dBm, QFN40

EFR32FG23A020F256GM40-CR
Silicon Labs
1: S/20.67
3,906In Stock

Mfr. Part #
EFR32FG23A020F256GM40-CR

Mouser Part #
634-FG2320F256GM40CR

Silicon Labs

RF System on a Chip - SoC FG23, Sub-GHz, 256kB Flash, 32kB RAM, +20 dBm, QFN40

Learn More

Datasheet

3,906In Stock

Cut Tape

S/20.67

S/15.76

S/14.52

S/13.16

View

Reel

S/11.79

MouseReel Available

Min.: 1
Mult.: 1

: 2,500

RF System on a Chip - SoC FG23, Sub-GHz, 256kB Flash, 32kB RAM, +14 dBm, QFN48

EFR32FG23A010F256GM48-CR
Silicon Labs
1: S/22.34
1,113In Stock

Mfr. Part #
EFR32FG23A010F256GM48-CR

Mouser Part #
634-FG2310F256GM48CR

Silicon Labs

RF System on a Chip - SoC FG23, Sub-GHz, 256kB Flash, 32kB RAM, +14 dBm, QFN48

Learn More

Datasheet

1,113In Stock

Cut Tape

S/22.34

S/17.05

S/15.69

S/14.25

View

Reel

S/12.77

Min.: 1
Mult.: 1

: 2,500

RF System on a Chip - SoC FG23, Sub-GHz, 512kB Flash, 64kB RAM, +20 dBm, XOUT, QFN40

EFR32FG23A021F512GM40-CR
Silicon Labs
1: S/29.31
2,410In Stock

Mfr. Part #
EFR32FG23A021F512GM40-CR

Mouser Part #
634-FG2321F512GM40CR

Silicon Labs

RF System on a Chip - SoC FG23, Sub-GHz, 512kB Flash, 64kB RAM, +20 dBm, XOUT, QFN40

Learn More

Datasheet

2,410In Stock

Cut Tape

S/29.31

S/22.58

S/20.90

S/19.07

View

Reel

S/16.27

Min.: 1
Mult.: 1

: 2,500

RF System on a Chip - SoC FG23, Sub-GHz, 128kB Flash, 32kB RAM, +14 dBm, Secure Vault-High, QFN40

EFR32FG23B010F128GM40-CR
Silicon Labs
1: S/23.00
1,820In Stock

Mfr. Part #
EFR32FG23B010F128GM40-CR

Mouser Part #
634-FG2310F128GM40CR

Silicon Labs

RF System on a Chip - SoC FG23, Sub-GHz, 128kB Flash, 32kB RAM, +14 dBm, Secure Vault-High, QFN40

Learn More

Datasheet

1,820In Stock

Cut Tape

S/23.00

S/17.56

S/16.15

S/14.64

View

Reel

S/13.16

Min.: 1
Mult.: 1

: 2,500

RF System on a Chip - SoC FG23, Sub-GHz, 256kB Flash, 32kB RAM, +20 dBm, QFN40

EFR32FG23A020F256GM40-B
Silicon Labs
1: S/20.28
561In Stock
NRND

Mfr. Part #
EFR32FG23A020F256GM40-B

Mouser Part #
634-FG23A20F256GM40B

NRND

Silicon Labs

RF System on a Chip - SoC FG23, Sub-GHz, 256kB Flash, 32kB RAM, +20 dBm, QFN40

Learn More

Datasheet

561In Stock

S/20.28

S/15.76

S/14.52

S/13.16

View

Min.: 1
Mult.: 1

32-bit Microcontrollers - MCU FG23L, 128kB Flash, 32kB RAM, +14 dBm, QFN40, -40 to +85 C

EFR32FG23L010F128GM40-C
Silicon Labs
1: S/14.83
2,214In Stock
New Product

Mfr. Part #
EFR32FG23L010F128GM40-C

Mouser Part #
634-F23L010F128GM40C

New Product

Silicon Labs

32-bit Microcontrollers - MCU FG23L, 128kB Flash, 32kB RAM, +14 dBm, QFN40, -40 to +85 C

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Datasheet

2,214In Stock

S/14.83

S/14.05

S/13.08

S/11.52

View

Min.: 1
Mult.: 1

32-bit Microcontrollers - MCU FG23L, 128kB Flash, 32kB RAM, +20 dBm, QFN40, -40 to +85 C

EFR32FG23L020F128GM40-C
Silicon Labs
1: S/15.45
2,391In Stock
New Product

Mfr. Part #
EFR32FG23L020F128GM40-C

Mouser Part #
634-F23L020F128GM40C

New Product

Silicon Labs

32-bit Microcontrollers - MCU FG23L, 128kB Flash, 32kB RAM, +20 dBm, QFN40, -40 to +85 C

Learn More

Datasheet

2,391In Stock

S/15.45

S/13.39

S/12.65

S/11.64

View

Min.: 1
Mult.: 1

RF System on a Chip - SoC FG23, Sub-GHz, 512kB Flash, 64kB RAM, +20 dBm, QFN48

EFR32FG23A020F512GM48-B
Silicon Labs
1: S/24.72
2,672In Stock
NRND

Mfr. Part #
EFR32FG23A020F512GM48-B

Mouser Part #
634-FG23A20F512GM48B

NRND

Silicon Labs

RF System on a Chip - SoC FG23, Sub-GHz, 512kB Flash, 64kB RAM, +20 dBm, QFN48

Learn More

Datasheet

2,672In Stock

S/24.72

S/19.31

S/17.83

S/16.23

View

Min.: 1
Mult.: 1

RF System on a Chip - SoC FG23, Sub-GHz, 512kB Flash, 64kB RAM, +20 dBm, XOUT, QFN40

EFR32FG23A021F512GM40-B
Silicon Labs
1: S/24.72
3,017In Stock
NRND

Mfr. Part #
EFR32FG23A021F512GM40-B

Mouser Part #
634-FG23A21F512GM40B

NRND

Silicon Labs

RF System on a Chip - SoC FG23, Sub-GHz, 512kB Flash, 64kB RAM, +20 dBm, XOUT, QFN40

Learn More

Datasheet

3,017In Stock

S/24.72

S/19.31

S/17.83

S/16.19

View

Min.: 1
Mult.: 1

RF System on a Chip - SoC FG23, Sub-GHz, 256kB Flash, 32kB RAM, +20 dBm, QFN48

EFR32FG23A020F256GM48-B
Silicon Labs
1: S/20.94
321In Stock
NRND

Mfr. Part #
EFR32FG23A020F256GM48-B

Mouser Part #
634-FG23A20F256GM48B

NRND

Silicon Labs

RF System on a Chip - SoC FG23, Sub-GHz, 256kB Flash, 32kB RAM, +20 dBm, QFN48

Learn More

Datasheet

321In Stock

S/20.94

S/16.35

S/15.06

S/13.62

View

Min.: 1
Mult.: 1

RF System on a Chip - SoC FG23, Sub-GHz, 512kB Flash, 64kB RAM, +14 dBm, QFN48

EFR32FG23A010F512GM48-CR
Silicon Labs
1: S/26.51
6,900In Stock

Mfr. Part #
EFR32FG23A010F512GM48-CR

Mouser Part #
634-FG2310F512GM48CR

Silicon Labs

RF System on a Chip - SoC FG23, Sub-GHz, 512kB Flash, 64kB RAM, +14 dBm, QFN48

Learn More

Datasheet

6,900In Stock

Cut Tape

S/26.51

S/20.32

S/18.76

S/17.28

Reel

S/17.28

Min.: 1
Mult.: 1

: 2,500

RF System on a Chip - SoC FG23, Sub-GHz, 512kB Flash, 64kB RAM, +14 dBm, QFN48

EFR32FG23A010F512GM48-C
Silicon Labs
1: S/27.33
2,435In Stock

Mfr. Part #
EFR32FG23A010F512GM48-C

Mouser Part #
634-FG2310F512GM48C

Silicon Labs

RF System on a Chip - SoC FG23, Sub-GHz, 512kB Flash, 64kB RAM, +14 dBm, QFN48

Learn More

Datasheet

2,435In Stock

S/27.33

S/21.29

S/19.77

S/18.65

S/15.80

Min.: 1
Mult.: 1

RF System on a Chip - SoC FG23, Sub-GHz, 512kB Flash, 64kB RAM, +14 dBm, QFN48

EFR32FG23A010F512GM48-B
Silicon Labs
1: S/23.55
3,565In Stock
NRND

Mfr. Part #
EFR32FG23A010F512GM48-B

Mouser Part #
634-FG23A10F512GM48B

NRND

Silicon Labs

RF System on a Chip - SoC FG23, Sub-GHz, 512kB Flash, 64kB RAM, +14 dBm, QFN48

Learn More

Datasheet

3,565In Stock

S/23.55

S/17.94

S/16.54

S/14.95

View

Min.: 1
Mult.: 1

RF System on a Chip - SoC FG23, Sub-GHz, 128kB Flash, 32kB RAM, +14 dBm, Secure Vault-High, QFN40

EFR32FG23B010F128GM40-B
Silicon Labs
1: S/22.03
120In Stock
NRND

Mfr. Part #
EFR32FG23B010F128GM40-B

Mouser Part #
634-FG23B10F128GM40B

NRND

Silicon Labs

RF System on a Chip - SoC FG23, Sub-GHz, 128kB Flash, 32kB RAM, +14 dBm, Secure Vault-High, QFN40

Learn More

Datasheet

120In Stock

S/22.03

S/18.37

S/16.58

S/15.34

View

Min.: 1
Mult.: 1

RF System on a Chip - SoC FG23, Sub-GHz, 512kB Flash, 64kB RAM, +14 dBm, Secure Vault-High, +125C, QFN48

EFR32FG23B010F512IM48-BR
Silicon Labs
1: S/25.46
49In Stock
NRND

Mfr. Part #
EFR32FG23B010F512IM48-BR

Mouser Part #
634-FG23B10F512I48BR

NRND

Silicon Labs

RF System on a Chip - SoC FG23, Sub-GHz, 512kB Flash, 64kB RAM, +14 dBm, Secure Vault-High, +125C, QFN48

Learn More

Datasheet

49In Stock

Cut Tape

S/25.46

S/19.50

S/18.02

S/16.39

View

Reel

S/13.94

Min.: 1
Mult.: 1

: 2,500

RF System on a Chip - SoC FG23, Sub-GHz, 256kB Flash, 32kB RAM, +14 dBm, QFN40

EFR32FG23A010F256GM40-B
Silicon Labs
1: S/20.12
24In Stock

Mfr. Part #
EFR32FG23A010F256GM40-B

Mouser Part #
634-FG23A10F256GM40B

Silicon Labs

RF System on a Chip - SoC FG23, Sub-GHz, 256kB Flash, 32kB RAM, +14 dBm, QFN40

Learn More

Datasheet

24In Stock

S/20.12

S/17.09

S/16.04

S/14.67

View

Min.: 1
Mult.: 1

RF System on a Chip - SoC FG23, Sub-GHz, 256kB Flash, 32kB RAM, +14 dBm, QFN40

EFR32FG23A010F256GM40-CR
Silicon Labs
1: S/21.60
2,500Expected 8/13/2026

Mfr. Part #
EFR32FG23A010F256GM40-CR

Mouser Part #
634-FG2310F256GM40CR

Silicon Labs

RF System on a Chip - SoC FG23, Sub-GHz, 256kB Flash, 32kB RAM, +14 dBm, QFN40

Learn More

Datasheet

2,500Expected 8/13/2026

Cut Tape

S/21.60

S/16.47

S/15.18

S/13.74

View

Reel

S/11.09

Min.: 1
Mult.: 1

: 2,500

RF System on a Chip - SoC FG23, Sub-GHz, 256kB Flash, 32kB RAM, +14 dBm, QFN48

EFR32FG23A010F256GM48-C
Silicon Labs
1: S/22.34
1,337Expected 10/20/2026

Mfr. Part #
EFR32FG23A010F256GM48-C

Mouser Part #
634-FG2310F256GM48C

Silicon Labs

RF System on a Chip - SoC FG23, Sub-GHz, 256kB Flash, 32kB RAM, +14 dBm, QFN48

Learn More

Datasheet

1,337Expected 10/20/2026

S/22.34

S/17.05

S/15.69

S/14.25

View

Min.: 1
Mult.: 1

RF System on a Chip - SoC FG23, Sub-GHz, 128kB Flash, 32kB RAM, +14 dBm, Secure Vault-High, QFN40

EFR32FG23B010F128GM40-C
Silicon Labs
2,450: S/12.30
Non-Stocked Lead-Time 12 Weeks

Mfr. Part #
EFR32FG23B010F128GM40-C

Mouser Part #
634-FG2310F128GM40C

Silicon Labs

RF System on a Chip - SoC FG23, Sub-GHz, 128kB Flash, 32kB RAM, +14 dBm, Secure Vault-High, QFN40

Learn More

Datasheet

Non-Stocked Lead-Time 12 Weeks

S/12.30

Min.: 2,450
Mult.: 2,450

RF System on a Chip - SoC FG23, Sub-GHz, 512kB Flash, 64kB RAM, +14 dBm, QFN40

EFR32FG23A010F512GM40-CR
Silicon Labs
2,500: S/13.97
Non-Stocked Lead-Time 12 Weeks

Mfr. Part #
EFR32FG23A010F512GM40-CR

Mouser Part #
634-FG2310F512GM40CR

Silicon Labs

RF System on a Chip - SoC FG23, Sub-GHz, 512kB Flash, 64kB RAM, +14 dBm, QFN40

Learn More

Datasheet

Non-Stocked Lead-Time 12 Weeks

Reel

S/13.97

Min.: 2,500
Mult.: 2,500

: 2,500

RF System on a Chip - SoC FG23, Sub-GHz, 512kB Flash, 64kB RAM, +14 dBm, Secure Vault-High, +125C, QFN40

EFR32FG23B010F512IM40-C
Silicon Labs
2,450: S/15.45
Non-Stocked Lead-Time 12 Weeks

Mfr. Part #
EFR32FG23B010F512IM40-C

Mouser Part #
634-FG2310F512IM40C

Silicon Labs

RF System on a Chip - SoC FG23, Sub-GHz, 512kB Flash, 64kB RAM, +14 dBm, Secure Vault-High, +125C, QFN40

Learn More

Datasheet

Non-Stocked Lead-Time 12 Weeks

S/15.45

Min.: 2,450
Mult.: 2,450

EFR32FG23 Flex Gecko Wireless SoCs

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