RF System on a Chip - SoC

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EFR32BG21 Series 2 BLUETOOTH® Wireless SoCs

Silicon Labs EFR32BG21 Series 2 BLUETOOTH^® Wireless SoCs offer an 80MHz Arm^® Cortex-M33 core with a high-performance 2.4GHz radio to provide an industry-leading, energy-efficient wireless SoC for IoT-connected applications. The EFR32BG21 Blue Gecko wireless SoCs are designed to increase processing capability, improve RF performance, and lower active current while providing a higher level of security.

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Part #

RF System on a Chip - SoC Blue Gecko, QFN32, 2.4G, 10dB, Bluetooth 5.1, 1024kB, 96kB(RAM), 20 GPIO

EFR32BG21B010F1024IM32-B
Silicon Labs
1: $6.64
2,428In Stock

Mfr. Part No.
EFR32BG21B010F1024IM32-B

Mouser Part No
634-32BG21B10024M32B

Silicon Labs

RF System on a Chip - SoC Blue Gecko, QFN32, 2.4G, 10dB, Bluetooth 5.1, 1024kB, 96kB(RAM), 20 GPIO

Learn More

Datasheet

2,428In Stock

$6.64

$5.09

$4.70

$4.28

View

Min.: 1
Mult.: 1

Bluetooth

ARM Cortex M33

2.4 GHz

2 Mbps

10 dBm

- 94.4 dBm

1.71 V

3.8 V

8.8 mA

33.8 mA

1 MB

- 40 C

+ 125 C

QFN-32

Tray

RF System on a Chip - SoC Blue Gecko, QFN32, 2.4G, 20dB, Bluetooth 5.1, 512kB, 64kB(RAM), 20 GPIO

EFR32BG21B020F512IM32-BR
Silicon Labs
1: $5.35
2,569In Stock

Mfr. Part No.
EFR32BG21B020F512IM32-BR

Mouser Part No
634-32BG21B2012M32BR

Silicon Labs

RF System on a Chip - SoC Blue Gecko, QFN32, 2.4G, 20dB, Bluetooth 5.1, 512kB, 64kB(RAM), 20 GPIO

Learn More

Datasheet

2,569In Stock

Cut Tape

$5.35

$4.08

$3.76

$3.40

View

Reel

$3.06

MouseReel Available

Min.: 1
Mult.: 1

: 2,500

Bluetooth

ARM Cortex M33

2.4 GHz

2 Mbps

20 dBm

- 94.4 dBm

1.71 V

3.8 V

8.8 mA

33.8 mA

512 kB

- 40 C

+ 125 C

QFN-32

Reel, Cut Tape, MouseReel

RF System on a Chip - SoC Blue Gecko, QFN32, 2.4G, 10dB, Bluetooth 5.1, 512kB, 64kB(RAM), 20 GPIO

EFR32BG21B010F512IM32-BR
Silicon Labs
1: $4.93
2,370In Stock

Mfr. Part No.
EFR32BG21B010F512IM32-BR

Mouser Part No
634-32BG21B1012M32BR

Silicon Labs

RF System on a Chip - SoC Blue Gecko, QFN32, 2.4G, 10dB, Bluetooth 5.1, 512kB, 64kB(RAM), 20 GPIO

Learn More

Datasheet

2,370In Stock

Cut Tape

$4.93

$3.76

$3.46

$3.14

View

Reel

$2.81

Min.: 1
Mult.: 1

: 2,500

Bluetooth

ARM Cortex M33

2.4 GHz

2 Mbps

10 dBm

- 94.4 dBm

1.71 V

3.8 V

8.8 mA

33.8 mA

512 kB

- 40 C

+ 125 C

QFN-32

Reel, Cut Tape

RF System on a Chip - SoC Blue Gecko, QFN32, 2.4G, 20dB, Bluetooth 5.1, 512kB, 64kB(RAM), 20 GPIO

EFR32BG21B020F512IM32-B
Silicon Labs
1: $5.36
713In Stock

Mfr. Part No.
EFR32BG21B020F512IM32-B

Mouser Part No
634-32BG21B20512M32B

Silicon Labs

RF System on a Chip - SoC Blue Gecko, QFN32, 2.4G, 20dB, Bluetooth 5.1, 512kB, 64kB(RAM), 20 GPIO

Learn More

Datasheet

713In Stock

$5.36

$4.09

$3.77

$3.41

View

Min.: 1
Mult.: 1

Bluetooth

ARM Cortex M33

2.4 GHz

2 Mbps

20 dBm

- 94.4 dBm

1.71 V

3.8 V

8.8 mA

33.8 mA

512 kB

- 40 C

+ 125 C

QFN-32

Tray

RF System on a Chip - SoC Blue Gecko, QFN32, 2.4G, 10dB, Bluetooth 5.1, 768kB, 64kB(RAM), 20 GPIO

EFR32BG21A010F768IM32-BR
Silicon Labs
1: $4.93
2,484In Stock

Mfr. Part No.
EFR32BG21A010F768IM32-BR

Mouser Part No
634-BG21A010F76832BR

Silicon Labs

RF System on a Chip - SoC Blue Gecko, QFN32, 2.4G, 10dB, Bluetooth 5.1, 768kB, 64kB(RAM), 20 GPIO

Learn More

Datasheet

2,484In Stock

Cut Tape

$4.93

$3.76

$3.46

$3.14

View

Reel

$2.81

Min.: 1
Mult.: 1

: 2,500

Bluetooth

ARM Cortex M33

2.4 GHz

2 Mbps

10 dBm

- 94.4 dBm

1.71 V

3.8 V

8.8 mA

33.8 mA

768 kB

- 40 C

+ 125 C

QFN-32

Reel, Cut Tape

RF System on a Chip - SoC Blue Gecko, QFN32, 2.4G, 20dB, Bluetooth 5.1, 1024kB, 96kB(RAM), 20 GPIO

EFR32BG21B020F1024IM32-B
Silicon Labs
1: $6.80
446In Stock

Mfr. Part No.
EFR32BG21B020F1024IM32-B

Mouser Part No
634-32BG21B20024M32B

Silicon Labs

RF System on a Chip - SoC Blue Gecko, QFN32, 2.4G, 20dB, Bluetooth 5.1, 1024kB, 96kB(RAM), 20 GPIO

Learn More

Datasheet

446In Stock

$6.80

$5.22

$4.82

$4.38

View

Min.: 1
Mult.: 1

Bluetooth

ARM Cortex M33

2.4 GHz

2 Mbps

20 dBm

- 94.4 dBm

1.71 V

3.8 V

8.8 mA

33.8 mA

1 MB

- 40 C

+ 125 C

QFN-32

Tray

RF System on a Chip - SoC Blue Gecko, QFN32, 2.4G, 20dB, Bluetooth 5.1, 768kB, 64kB(RAM), 20 GPIO

EFR32BG21B020F768IM32-B
Silicon Labs
1: $5.97
1,830In Stock

Mfr. Part No.
EFR32BG21B020F768IM32-B

Mouser Part No
634-32BG21B20768M32B

Silicon Labs

RF System on a Chip - SoC Blue Gecko, QFN32, 2.4G, 20dB, Bluetooth 5.1, 768kB, 64kB(RAM), 20 GPIO

Learn More

Datasheet

1,830In Stock

$5.97

$4.55

$4.20

$3.80

View

Min.: 1
Mult.: 1

Bluetooth

ARM Cortex M33

2.4 GHz

2 Mbps

20 dBm

- 94.4 dBm

1.71 V

3.8 V

8.8 mA

33.8 mA

768 kB

- 40 C

+ 125 C

QFN-32

Tray

RF System on a Chip - SoC Blue Gecko, QFN32, 2.4G, 20dB, Bluetooth 5.1, 1024kB, 96kB(RAM), 20 GPIO

EFR32BG21B020F1024IM32-BR
Silicon Labs
1: $6.80
887In Stock

Mfr. Part No.
EFR32BG21B020F1024IM32-BR

Mouser Part No
634-2BG21B20024M32BR

Silicon Labs

RF System on a Chip - SoC Blue Gecko, QFN32, 2.4G, 20dB, Bluetooth 5.1, 1024kB, 96kB(RAM), 20 GPIO

Learn More

Datasheet

887In Stock

Cut Tape

$6.80

$5.22

$4.82

$4.38

$4.29

Reel

$3.68

Min.: 1
Mult.: 1

: 2,500

Bluetooth

ARM Cortex M33

2.4 GHz

2 Mbps

20 dBm

- 94.4 dBm

1.71 V

3.8 V

8.8 mA

33.8 mA

1 MB

- 40 C

+ 125 C

QFN-32

Reel, Cut Tape

RF System on a Chip - SoC Blue Gecko, QFN32, 2.4G, 10dB, Bluetooth 5.1, 1024kB, 96kB(RAM), 20 GPIO

EFR32BG21A010F1024IM32-BR
Silicon Labs
1: $5.26
2,702In Stock

Mfr. Part No.
EFR32BG21A010F1024IM32-BR

Mouser Part No
634-B21A010F102432BR

Silicon Labs

RF System on a Chip - SoC Blue Gecko, QFN32, 2.4G, 10dB, Bluetooth 5.1, 1024kB, 96kB(RAM), 20 GPIO

Learn More

Datasheet

2,702In Stock

Cut Tape

$5.26

$4.01

$3.70

$3.35

$3.29

Reel

$2.79

MouseReel Available

Min.: 1
Mult.: 1

: 2,500

Bluetooth

ARM Cortex M33

2.4 GHz

2 Mbps

10 dBm

- 94.4 dBm

1.71 V

3.8 V

8.8 mA

33.8 mA

1 MB

- 40 C

+ 125 C

QFN-32

Reel, Cut Tape, MouseReel

RF System on a Chip - SoC Blue Gecko, QFN32, 2.4G, 20dB, Bluetooth 5.1, 512kB, 64kB(RAM), 20 GPIO

EFR32BG21A020F512IM32-B
Silicon Labs
1: $5.04
818In Stock

Mfr. Part No.
EFR32BG21A020F512IM32-B

Mouser Part No
634-BG21A020F51232B

Silicon Labs

RF System on a Chip - SoC Blue Gecko, QFN32, 2.4G, 20dB, Bluetooth 5.1, 512kB, 64kB(RAM), 20 GPIO

Learn More

Datasheet

818In Stock

$5.04

$3.80

$3.49

$3.15

View

Min.: 1
Mult.: 1

Bluetooth

ARM Cortex M33

2.4 GHz

2 Mbps

20 dBm

- 94.4 dBm

1.71 V

3.8 V

8.8 mA

33.8 mA

512 kB

- 40 C

+ 125 C

QFN-32

Tray

RF System on a Chip - SoC Blue Gecko, QFN32, 2.4G, 10dB, Bluetooth 5.1, 768kB, 64kB(RAM), 20 GPIO

EFR32BG21B010F768IM32-B
Silicon Labs
1: $5.63
980In Stock

Mfr. Part No.
EFR32BG21B010F768IM32-B

Mouser Part No
634-32BG21B10768M32B

Silicon Labs

RF System on a Chip - SoC Blue Gecko, QFN32, 2.4G, 10dB, Bluetooth 5.1, 768kB, 64kB(RAM), 20 GPIO

Learn More

Datasheet

980In Stock

$5.63

$4.29

$3.96

$3.59

View

Min.: 1
Mult.: 1

Bluetooth

ARM Cortex M33

2.4 GHz

2 Mbps

10 dBm

- 94.4 dBm

1.71 V

3.8 V

8.8 mA

33.8 mA

768 kB

- 40 C

+ 125 C

QFN-32

Tray

RF System on a Chip - SoC Blue Gecko, QFN32, 2.4G, 20dB, Bluetooth 5.1, 1024kB, 96kB(RAM), 20 GPIO

EFR32BG21A020F1024IM32-BR
Silicon Labs
1: $7.16
279In Stock

Mfr. Part No.
EFR32BG21A020F1024IM32-BR

Mouser Part No
634-B21A020F102432BR

Silicon Labs

RF System on a Chip - SoC Blue Gecko, QFN32, 2.4G, 20dB, Bluetooth 5.1, 1024kB, 96kB(RAM), 20 GPIO

Learn More

Datasheet

279In Stock

Cut Tape

$7.16

$5.49

$5.07

$4.62

$4.49

Reel

$3.81

Min.: 1
Mult.: 1

: 2,500

Bluetooth

ARM Cortex M33

2.4 GHz

2 Mbps

20 dBm

- 94.4 dBm

1.71 V

3.8 V

8.8 mA

33.8 mA

1 MB

- 40 C

+ 125 C

QFN-32

Reel, Cut Tape

RF System on a Chip - SoC Blue Gecko, QFN32, 2.4G, 10dB, Bluetooth 5.1, 512kB, 64kB(RAM), 20 GPIO

EFR32BG21A010F512IM32-B
Silicon Labs
1: $4.43
81In Stock

Mfr. Part No.
EFR32BG21A010F512IM32-B

Mouser Part No
634-BG21A010F51232B

Silicon Labs

RF System on a Chip - SoC Blue Gecko, QFN32, 2.4G, 10dB, Bluetooth 5.1, 512kB, 64kB(RAM), 20 GPIO

Learn More

Datasheet

81In Stock

$4.43

$3.34

$3.07

$2.77

View

Min.: 1
Mult.: 1

Bluetooth

ARM Cortex M33

2.4 GHz

2 Mbps

10 dBm

- 94.4 dBm

1.71 V

3.8 V

8.8 mA

33.8 mA

512 kB

- 40 C

+ 125 C

QFN-32

Tray

RF System on a Chip - SoC Blue Gecko, QFN32, 2.4G, 10dB, Bluetooth 5.1, 512kB, 64kB(RAM), 20 GPIO

EFR32BG21A010F512IM32-BR
Silicon Labs
1: $4.00
259In Stock

Mfr. Part No.
EFR32BG21A010F512IM32-BR

Mouser Part No
634-BG21A010F51232BR

Silicon Labs

RF System on a Chip - SoC Blue Gecko, QFN32, 2.4G, 10dB, Bluetooth 5.1, 512kB, 64kB(RAM), 20 GPIO

Learn More

Datasheet

259In Stock

Cut Tape

$4.00

$2.98

$2.73

$2.45

Reel

$2.08

View

Min.: 1
Mult.: 1

: 2,500

Bluetooth

ARM Cortex M33

2.4 GHz

2 Mbps

10 dBm

- 94.4 dBm

1.71 V

3.8 V

8.8 mA

33.8 mA

512 kB

- 40 C

+ 125 C

QFN-32

Reel, Cut Tape

RF System on a Chip - SoC Blue Gecko, QFN32, 2.4G, 20dB, Bluetooth 5.1, 512kB, 64kB(RAM), 20 GPIO

EFR32BG21A020F512IM32-BR
Silicon Labs
1: $5.04
477In Stock

Mfr. Part No.
EFR32BG21A020F512IM32-BR

Mouser Part No
634-BG21A020F51232BR

Silicon Labs

RF System on a Chip - SoC Blue Gecko, QFN32, 2.4G, 20dB, Bluetooth 5.1, 512kB, 64kB(RAM), 20 GPIO

Learn More

Datasheet

477In Stock

Cut Tape

$5.04

$3.80

$3.49

$3.15

View

Reel

$2.72

Min.: 1
Mult.: 1

: 2,500

Bluetooth

ARM Cortex M33

2.4 GHz

2 Mbps

20 dBm

- 94.4 dBm

1.71 V

3.8 V

8.8 mA

33.8 mA

512 kB

- 40 C

+ 125 C

QFN-32

Reel, Cut Tape

RF System on a Chip - SoC Blue Gecko, QFN32, 2.4G, 10dB, Bluetooth 5.1, 1024kB, 96kB(RAM), 20 GPIO

EFR32BG21A010F1024IM32-B
Silicon Labs
1: $5.26
31In Stock

Mfr. Part No.
EFR32BG21A010F1024IM32-B

Mouser Part No
634-BG21A010F102432B

Silicon Labs

RF System on a Chip - SoC Blue Gecko, QFN32, 2.4G, 10dB, Bluetooth 5.1, 1024kB, 96kB(RAM), 20 GPIO

Learn More

Datasheet

31In Stock

$5.26

$4.01

$3.70

$3.35

View

Min.: 1
Mult.: 1

Bluetooth

ARM Cortex M33

2.4 GHz

2 Mbps

10 dBm

- 94.4 dBm

1.71 V

3.8 V

8.8 mA

33.8 mA

1 MB

- 40 C

+ 125 C

QFN-32

Tray

RF System on a Chip - SoC Blue Gecko, QFN32, 2.4G, 20dB, Bluetooth 5.1, 1024kB, 96kB(RAM), 20 GPIO

EFR32BG21A020F1024IM32-B
Silicon Labs
1: $7.16
12In Stock

Mfr. Part No.
EFR32BG21A020F1024IM32-B

Mouser Part No
634-BG21A020F102432B

Silicon Labs

RF System on a Chip - SoC Blue Gecko, QFN32, 2.4G, 20dB, Bluetooth 5.1, 1024kB, 96kB(RAM), 20 GPIO

Learn More

Datasheet

12In Stock

$7.16

$5.49

$5.07

$4.62

View

Min.: 1
Mult.: 1

Bluetooth

ARM Cortex M33

2.4 GHz

2 Mbps

20 dBm

- 94.4 dBm

1.71 V

3.8 V

8.8 mA

33.8 mA

1 MB

- 40 C

+ 125 C

QFN-32

Tray

RF System on a Chip - SoC Blue Gecko, QFN32, 2.4G, 10dB, Bluetooth 5.1, 1024kB, 96kB(RAM), 20 GPIO

EFR32BG21B010F1024IM32-BR
Silicon Labs
2,500: $3.37
Non-Stocked Lead-Time 12 Weeks

Mfr. Part No.
EFR32BG21B010F1024IM32-BR

Mouser Part No
634-2BG21B10024M32BR

Silicon Labs

RF System on a Chip - SoC Blue Gecko, QFN32, 2.4G, 10dB, Bluetooth 5.1, 1024kB, 96kB(RAM), 20 GPIO

Learn More

Datasheet

Non-Stocked Lead-Time 12 Weeks

Reel

$3.37

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

: 2,500

Bluetooth

ARM Cortex M33

2.4 GHz

2 Mbps

10 dBm

- 94.4 dBm

1.71 V

3.8 V

8.8 mA

33.8 mA

1 MB

- 40 C

+ 125 C

QFN-32

Reel

RF System on a Chip - SoC Blue Gecko, QFN32, 2.4G, 10dB, Bluetooth 5.1, 512kB, 64kB(RAM), 20 GPIO

EFR32BG21B010F512IM32-B
Silicon Labs
2,450: $2.45
Non-Stocked Lead-Time 12 Weeks

Mfr. Part No.
EFR32BG21B010F512IM32-B

Mouser Part No
634-32BG21B10512M32B

Silicon Labs

RF System on a Chip - SoC Blue Gecko, QFN32, 2.4G, 10dB, Bluetooth 5.1, 512kB, 64kB(RAM), 20 GPIO

Learn More

Datasheet

Non-Stocked Lead-Time 12 Weeks

$2.45

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

Bluetooth

ARM Cortex M33

2.4 GHz

2 Mbps

10 dBm

- 94.4 dBm

1.71 V

3.8 V

8.8 mA

33.8 mA

512 kB

- 40 C

+ 125 C

QFN-32

Tray

RF System on a Chip - SoC Blue Gecko, QFN32, 2.4G, 10dB, Bluetooth 5.1, 768kB, 64kB(RAM), 20 GPIO

EFR32BG21B010F768IM32-BR
Silicon Labs
2,500: $2.80
Non-Stocked Lead-Time 12 Weeks

Mfr. Part No.
EFR32BG21B010F768IM32-BR

Mouser Part No
634-32BG21B1068M32BR

Silicon Labs

RF System on a Chip - SoC Blue Gecko, QFN32, 2.4G, 10dB, Bluetooth 5.1, 768kB, 64kB(RAM), 20 GPIO

Learn More

Datasheet

Non-Stocked Lead-Time 12 Weeks

Reel

$2.80

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

: 2,500

Bluetooth

ARM Cortex M33

2.4 GHz

2 Mbps

10 dBm

- 94.4 dBm

1.71 V

3.8 V

8.8 mA

33.8 mA

768 kB

- 40 C

+ 125 C

QFN-32

Reel

RF System on a Chip - SoC Blue Gecko, QFN32, 2.4G, 20dB, Bluetooth 5.1, 768kB, 64kB(RAM), 20 GPIO

EFR32BG21B020F768IM32-BR
Silicon Labs
2,500: $3.41
Non-Stocked Lead-Time 12 Weeks

Mfr. Part No.
EFR32BG21B020F768IM32-BR

Mouser Part No
634-32BG21B2068M32BR

Silicon Labs

RF System on a Chip - SoC Blue Gecko, QFN32, 2.4G, 20dB, Bluetooth 5.1, 768kB, 64kB(RAM), 20 GPIO

Learn More

Datasheet

Non-Stocked Lead-Time 12 Weeks

Reel

$3.41

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

: 2,500

Bluetooth

ARM Cortex M33

2.4 GHz

2 Mbps

20 dBm

- 94.4 dBm

1.71 V

3.8 V

8.8 mA

33.8 mA

768 kB

- 40 C

+ 125 C

QFN-32

Reel

RF System on a Chip - SoC Blue Gecko, QFN32, 2.4G, 10dB, Bluetooth 5.1, 768kB, 64kB(RAM), 20 GPIO

EFR32BG21A010F768IM32-B
Silicon Labs
2,450: $2.45
Non-Stocked Lead-Time 12 Weeks

Mfr. Part No.
EFR32BG21A010F768IM32-B

Mouser Part No
634-BG21A010F76832B

Silicon Labs

RF System on a Chip - SoC Blue Gecko, QFN32, 2.4G, 10dB, Bluetooth 5.1, 768kB, 64kB(RAM), 20 GPIO

Learn More

Datasheet

Non-Stocked Lead-Time 12 Weeks

$2.45

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

Bluetooth

ARM Cortex M4

2.4 GHz

10 dBm

1.8 V

3.8 V

768 kB

- 40 C

+ 125 C

QFN-32

Tray

RF System on a Chip - SoC Blue Gecko, QFN32, 2.4G, 20dB, Bluetooth 5.1, 768kB, 64kB(RAM), 20 GPIO

EFR32BG21A020F768IM32-B
Silicon Labs
2,450: $3.06
Non-Stocked Lead-Time 12 Weeks

Mfr. Part No.
EFR32BG21A020F768IM32-B

Mouser Part No
634-BG21A020F76832B

Silicon Labs

RF System on a Chip - SoC Blue Gecko, QFN32, 2.4G, 20dB, Bluetooth 5.1, 768kB, 64kB(RAM), 20 GPIO

Learn More

Datasheet

Non-Stocked Lead-Time 12 Weeks

$3.06

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

Bluetooth

ARM Cortex M4

2.4 GHz

20 dBm

1.8 V

3.8 V

768 kB

- 40 C

+ 125 C

QFN-32

Tray

RF System on a Chip - SoC Blue Gecko, QFN32, 2.4G, 20dB, Bluetooth 5.1, 768kB, 64kB(RAM), 20 GPIO

EFR32BG21A020F768IM32-BR
Silicon Labs
1: $5.35
Non-Stocked Lead-Time 12 Weeks

Mfr. Part No.
EFR32BG21A020F768IM32-BR

Mouser Part No
634-BG21A020F76832BR

Silicon Labs

RF System on a Chip - SoC Blue Gecko, QFN32, 2.4G, 20dB, Bluetooth 5.1, 768kB, 64kB(RAM), 20 GPIO

Learn More

Datasheet

Non-Stocked Lead-Time 12 Weeks

Cut Tape

$5.35

$4.08

$3.76

$3.40

View

Reel

$3.06

Min.: 1
Mult.: 1

: 2,500

Bluetooth

ARM Cortex M4

2.4 GHz

20 dBm

1.8 V

3.8 V

768 kB

- 40 C

+ 125 C

QFN-32

Reel, Cut Tape

EFR32BG21 Series 2 BLUETOOTH® Wireless SoCs

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