ARM Microcontrollers - MCU

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EFM32 Leopard Gecko 32-Bit Microcontrollers

Silicon Labs EFM32 Leopard Gecko 32-Bit Microcontrollers are part of the world's most energy-friendly microcontrollers and will provide Flash memory configurations up to 256KB with the added option of embedded USB connectivity, direct-drive TFT, EBI and CPU speeds up to 48MHz. All Leopard MCUs include the same autonomous, low-energy peripherals found in the Gecko family, like AES encryption, Pulse Counter, Low Energy UARTs in addition to the Low Energy Sensor interface LESENSE and on-chip Operational Amplifiers. These devices target energy-sensitive applications with high memory requirements and connectivity requirements.

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Part #

ARM Microcontrollers - MCU Leopard Gecko MCU IC 256KB

EFM32LG230F256G-F-QFN64
Silicon Labs
1: S/41.10
2,584In Stock

Mfr. Part #
EFM32LG230F256G-F-QFN64

Mouser Part #
634-32LG230F256GFQFN

Silicon Labs

ARM Microcontrollers - MCU Leopard Gecko MCU IC 256KB

Learn More

Datasheet

2,584In Stock

S/41.10

S/32.11

S/29.86

S/27.36

View

Min.: 1
Mult.: 1

EFM32LG

SMD/SMT

QFN-64

ARM Cortex M3

256 kB

32 bit

12 bit

48 MHz

56 I/O

32 kB

1.98 V

3.8 V

- 40 C

+ 85 C

Tray

ARM Microcontrollers - MCU Leopard Gecko MCU IC 256KB

EFM32LG330F256G-F-QFN64
Silicon Labs
1: S/43.32
2,657In Stock

Mfr. Part #
EFM32LG330F256G-F-QFN64

Mouser Part #
634-32LG330F256GFQFN

Silicon Labs

ARM Microcontrollers - MCU Leopard Gecko MCU IC 256KB

Learn More

Datasheet

2,657In Stock

S/43.32

S/34.45

S/31.57

S/29.19

View

Min.: 1
Mult.: 1

EFM32LG

SMD/SMT

QFN-64

ARM Cortex M3

256 kB

32 bit

12 bit

48 MHz

53 I/O

32 kB

1.98 V

3.8 V

- 40 C

+ 85 C

Tray

ARM Microcontrollers - MCU Leopard Gecko MCU IC 128KB

EFM32LG230F128G-F-QFN64R
Silicon Labs
1: S/36.32
2,650In Stock

Mfr. Part #
EFM32LG230F128G-F-QFN64R

Mouser Part #
634-32LG230F128GFQFR

Silicon Labs

ARM Microcontrollers - MCU Leopard Gecko MCU IC 128KB

Learn More

Datasheet

2,650In Stock

Cut Tape

S/36.32

S/28.14

S/26.12

S/23.86

View

Reel

S/20.40

Min.: 1
Mult.: 1

: 3,000

EFM32LG

SMD/SMT

QFN-64

ARM Cortex M3

128 kB

32 bit

12 bit

48 MHz

56 I/O

32 kB

1.98 V

3.8 V

- 40 C

+ 85 C

Reel, Cut Tape

ARM Microcontrollers - MCU Leopard Gecko MCU IC 256KB

EFM32LG842F256G-F-QFP64R
Silicon Labs
1: S/43.21
5,787In Stock

Mfr. Part #
EFM32LG842F256G-F-QFP64R

Mouser Part #
634-32LG842256GFQFPR

Silicon Labs

ARM Microcontrollers - MCU Leopard Gecko MCU IC 256KB

Learn More

Datasheet

5,787In Stock

Cut Tape

S/43.21

S/33.75

S/31.37

S/28.77

View

Reel

S/26.12

Min.: 1
Mult.: 1

: 1,000

EFM32LG

SMD/SMT

TQFP-64

ARM Cortex M3

256 kB

32 bit

12 bit

48 MHz

53 I/O

32 kB

1.98 V

3.8 V

- 40 C

+ 85 C

Reel, Cut Tape

ARM Microcontrollers - MCU Leopard Gecko MCU IC 256KB

EFM32LG380F256G-F-QFP100
Silicon Labs
1: S/48.42
380In Stock

Mfr. Part #
EFM32LG380F256G-F-QFP100

Mouser Part #
634-32LG380F256GFQFP

Silicon Labs

ARM Microcontrollers - MCU Leopard Gecko MCU IC 256KB

Learn More

Datasheet

380In Stock

S/48.42

S/37.91

S/35.30

S/32.74

View

Min.: 1
Mult.: 1

EFM32LG

SMD/SMT

LQFP-100

ARM Cortex M3

256 kB

32 bit

12 bit

48 MHz

83 I/O

32 kB

1.98 V

3.8 V

- 40 C

+ 85 C

Tray

ARM Microcontrollers - MCU Leopard Gecko MCU IC 256KB

EFM32LG230F256G-F-QFN64R
Silicon Labs
1: S/41.10
1,937In Stock

Mfr. Part #
EFM32LG230F256G-F-QFN64R

Mouser Part #
634-32LG230F256GFQFR

Silicon Labs

ARM Microcontrollers - MCU Leopard Gecko MCU IC 256KB

Learn More

Datasheet

1,937In Stock

Cut Tape

S/41.10

S/32.11

S/29.86

S/27.36

View

Reel

S/24.76

Min.: 1
Mult.: 1

: 3,000

EFM32LG

SMD/SMT

QFN-64

ARM Cortex M3

256 kB

32 bit

12 bit

48 MHz

56 I/O

32 kB

1.98 V

3.8 V

- 40 C

+ 85 C

Reel, Cut Tape

ARM Microcontrollers - MCU Leopard Gecko MCU IC 128KB

EFM32LG230F128G-F-QFN64
Silicon Labs
1: S/36.32
1,814In Stock

Mfr. Part #
EFM32LG230F128G-F-QFN64

Mouser Part #
634-32LG230F128GFQFN

Silicon Labs

ARM Microcontrollers - MCU Leopard Gecko MCU IC 128KB

Learn More

Datasheet

1,814In Stock

S/36.32

S/28.14

S/26.12

S/23.86

View

Min.: 1
Mult.: 1

EFM32LG

SMD/SMT

QFN-64

ARM Cortex M3

128 kB

32 bit

12 bit

48 MHz

56 I/O

32 kB

1.98 V

3.8 V

- 40 C

+ 85 C

Tray

ARM Microcontrollers - MCU Leopard Gecko MCU IC 256KB

EFM32LG330F256G-F-QFN64R
Silicon Labs
1: S/43.48
190In Stock

Mfr. Part #
EFM32LG330F256G-F-QFN64R

Mouser Part #
634-32LG330F256GFQFR

Silicon Labs

ARM Microcontrollers - MCU Leopard Gecko MCU IC 256KB

Learn More

Datasheet

190In Stock

Cut Tape

S/43.48

S/33.94

S/31.57

S/28.96

View

Reel

S/25.03

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

EFM32LG

SMD/SMT

QFN-64

ARM Cortex M3

256 kB

32 bit

12 bit

48 MHz

53 I/O

32 kB

1.98 V

3.8 V

- 40 C

+ 85 C

Reel, Cut Tape, MouseReel

ARM Microcontrollers - MCU Leopard Gecko MCU IC 256KB

EFM32LG232F256G-F-QFP64
Silicon Labs
1: S/47.10
1,600In Stock

Mfr. Part #
EFM32LG232F256G-F-QFP64

Mouser Part #
634-32LG232F256GFQFP

Silicon Labs

ARM Microcontrollers - MCU Leopard Gecko MCU IC 256KB

Learn More

Datasheet

1,600In Stock

S/47.10

S/38.30

S/36.51

S/31.72

View

Min.: 1
Mult.: 1

EFM32LG

SMD/SMT

TQFP-64

ARM Cortex M3

256 kB

32 bit

12 bit

48 MHz

53 I/O

32 kB

1.98 V

3.8 V

- 40 C

+ 85 C

Tray

ARM Microcontrollers - MCU Leopard Gecko MCU IC 256KB

EFM32LG332F256G-F-QFP64
Silicon Labs
1: S/44.18
1,059In Stock

Mfr. Part #
EFM32LG332F256G-F-QFP64

Mouser Part #
634-32LG332F256GFQFP

Silicon Labs

ARM Microcontrollers - MCU Leopard Gecko MCU IC 256KB

Learn More

Datasheet

1,059In Stock

S/44.18

S/35.42

S/32.27

S/29.78

View

Min.: 1
Mult.: 1

EFM32LG

SMD/SMT

TQFP-64

ARM Cortex M3

256 kB

32 bit

12 bit

48 MHz

50 I/O

32 kB

1.98 V

3.8 V

- 40 C

+ 85 C

Tray

ARM Microcontrollers - MCU Leopard Gecko MCU IC 256KB

EFM32LG290F256G-F-BGA112
Silicon Labs
1: S/55.20
106In Stock

Mfr. Part #
EFM32LG290F256G-F-BGA112

Mouser Part #
634-32LG290F256GFBGA

Silicon Labs

ARM Microcontrollers - MCU Leopard Gecko MCU IC 256KB

Learn More

Datasheet

106In Stock

S/55.20

S/41.92

S/37.84

S/35.42

View

Min.: 1
Mult.: 1

EFM32LG

SMD/SMT

BGA-112

ARM Cortex M3

256 kB

32 bit

12 bit

48 MHz

90 I/O

32 kB

1.98 V

3.8 V

- 40 C

+ 85 C

Tray

ARM Microcontrollers - MCU Leopard Gecko MCU IC 256KB

EFM32LG280F256G-F-QFP100R
Silicon Labs
1,000: S/29.62
Non-Stocked Lead-Time 12 Weeks

Mfr. Part #
EFM32LG280F256G-F-QFP100R

Mouser Part #
634-32L280F256GFQFPR

Silicon Labs

ARM Microcontrollers - MCU Leopard Gecko MCU IC 256KB

Learn More

Datasheet

Non-Stocked Lead-Time 12 Weeks

Reel

S/29.62

View

Min.: 1,000
Mult.: 1,000

: 1,000

EFM32LG

SMD/SMT

LQFP-100

ARM Cortex M3

256 kB

32 bit

12 bit

48 MHz

86 I/O

32 kB

1.98 V

3.8 V

- 40 C

+ 85 C

Reel

ARM Microcontrollers - MCU Leopard Gecko MCU IC 256KB

EFM32LG295F256G-F-BGA120R
Silicon Labs
1,000: S/30.91
Non-Stocked Lead-Time 12 Weeks

Mfr. Part #
EFM32LG295F256G-F-BGA120R

Mouser Part #
634-32L295F256GFBGAR

Silicon Labs

ARM Microcontrollers - MCU Leopard Gecko MCU IC 256KB

Learn More

Datasheet

Non-Stocked Lead-Time 12 Weeks

Reel

S/30.91

Quote

Min.: 1,000
Mult.: 1,000

: 1,000

EFM32LG

SMD/SMT

BGA-120

ARM Cortex M3

256 kB

32 bit

12 bit

48 MHz

93 I/O

32 kB

1.98 V

3.8 V

- 40 C

+ 85 C

Reel

ARM Microcontrollers - MCU Leopard Gecko MCU IC 64KB

EFM32LG230F64G-F-QFN64
Silicon Labs
1,300: S/19.31
Non-Stocked Lead-Time 12 Weeks

Mfr. Part #
EFM32LG230F64G-F-QFN64

Mouser Part #
634-32LG230F64GFQFN

Silicon Labs

ARM Microcontrollers - MCU Leopard Gecko MCU IC 64KB

Learn More

Datasheet

Non-Stocked Lead-Time 12 Weeks

S/19.31

View

Min.: 1,300
Mult.: 1,300

EFM32LG

SMD/SMT

QFN-64

ARM Cortex M3

64 kB

32 bit

12 bit

48 MHz

56 I/O

32 kB

1.98 V

3.8 V

- 40 C

+ 85 C

Tray

ARM Microcontrollers - MCU Leopard Gecko MCU IC 64KB

EFM32LG230F64G-F-QFN64R
Silicon Labs
3,000: S/19.15
Non-Stocked Lead-Time 12 Weeks

Mfr. Part #
EFM32LG230F64G-F-QFN64R

Mouser Part #
634-32LG230F64GFQFR

Silicon Labs

ARM Microcontrollers - MCU Leopard Gecko MCU IC 64KB

Learn More

Datasheet

Non-Stocked Lead-Time 12 Weeks

Reel

S/19.15

Min.: 3,000
Mult.: 3,000

: 3,000

EFM32LG

SMD/SMT

QFN-64

ARM Cortex M3

64 kB

32 bit

12 bit

48 MHz

56 I/O

32 kB

1.98 V

3.8 V

- 40 C

+ 85 C

Reel

ARM Microcontrollers - MCU Leopard Gecko MCU IC 128KB

EFM32LG232F128G-F-QFP64
Silicon Labs
800: S/23.04
Non-Stocked Lead-Time 12 Weeks

Mfr. Part #
EFM32LG232F128G-F-QFP64

Mouser Part #
634-32LG232F128GFQFP

Silicon Labs

ARM Microcontrollers - MCU Leopard Gecko MCU IC 128KB

Learn More

Datasheet

Non-Stocked Lead-Time 12 Weeks

S/23.04

Quote

Min.: 800
Mult.: 800

EFM32LG

SMD/SMT

TQFP-64

ARM Cortex M3

128 kB

32 bit

12 bit

48 MHz

53 I/O

32 kB

1.98 V

3.8 V

- 40 C

+ 85 C

Tray

ARM Microcontrollers - MCU Leopard Gecko MCU IC 128KB

EFM32LG232F128G-F-QFP64R
Silicon Labs
1,000: S/22.73
Non-Stocked Lead-Time 12 Weeks

Mfr. Part #
EFM32LG232F128G-F-QFP64R

Mouser Part #
634-32LG232F128GFQFR

Silicon Labs

ARM Microcontrollers - MCU Leopard Gecko MCU IC 128KB

Learn More

Datasheet

Non-Stocked Lead-Time 12 Weeks

Reel

S/22.73

S/22.42

Min.: 1,000
Mult.: 1,000

: 1,000

EFM32LG

SMD/SMT

TQFP-64

ARM Cortex M3

128 kB

32 bit

12 bit

48 MHz

53 I/O

32 kB

1.98 V

3.8 V

- 40 C

+ 85 C

Reel

ARM Microcontrollers - MCU Leopard Gecko MCU IC 256KB

EFM32LG232F256G-F-QFP64R
Silicon Labs
1,000: S/26.16
Non-Stocked Lead-Time 12 Weeks

Mfr. Part #
EFM32LG232F256G-F-QFP64R

Mouser Part #
634-32LG232F256GFQFR

Silicon Labs

ARM Microcontrollers - MCU Leopard Gecko MCU IC 256KB

Learn More

Datasheet

Non-Stocked Lead-Time 12 Weeks

Reel

S/26.16

Quote

Min.: 1,000
Mult.: 1,000

: 1,000

EFM32LG

SMD/SMT

TQFP-64

ARM Cortex M3

256 kB

32 bit

12 bit

48 MHz

53 I/O

32 kB

1.98 V

3.8 V

- 40 C

+ 85 C

Reel

ARM Microcontrollers - MCU Leopard Gecko MCU IC 256KB

EFM32LG280F256G-F-QFP100
Silicon Labs
1: S/46.01
Non-Stocked Lead-Time 12 Weeks

Mfr. Part #
EFM32LG280F256G-F-QFP100

Mouser Part #
634-32LG280F256GFQFP

Silicon Labs

ARM Microcontrollers - MCU Leopard Gecko MCU IC 256KB

Learn More

Datasheet

Non-Stocked Lead-Time 12 Weeks

S/46.01

S/36.08

S/33.55

S/31.61

View

Min.: 1
Mult.: 1

EFM32LG

SMD/SMT

LQFP-100

ARM Cortex M3

256 kB

32 bit

12 bit

48 MHz

85 I/O

32 kB

1.98 V

3.8 V

- 40 C

+ 85 C

Tray

ARM Microcontrollers - MCU Leopard Gecko MCU IC 256KB

EFM32LG295F256G-F-BGA120
Silicon Labs
1,300: S/29.39
Non-Stocked Lead-Time 12 Weeks

Mfr. Part #
EFM32LG295F256G-F-BGA120

Mouser Part #
634-32LG295F256GFBGA

Silicon Labs

ARM Microcontrollers - MCU Leopard Gecko MCU IC 256KB

Learn More

Datasheet

Non-Stocked Lead-Time 12 Weeks

S/29.39

View

Min.: 1,300
Mult.: 1,300

EFM32LG

SMD/SMT

BGA-120

ARM Cortex M3

256 kB

32 bit

12 bit

48 MHz

93 I/O

32 kB

1.98 V

3.8 V

- 40 C

+ 85 C

Tray

ARM Microcontrollers - MCU Leopard Gecko MCU IC 256KB

EFM32LG332F256G-F-QFP64R
Silicon Labs
1,000: S/27.48
Non-Stocked Lead-Time 12 Weeks

Mfr. Part #
EFM32LG332F256G-F-QFP64R

Mouser Part #
634-32LG332256GFQFPR

Silicon Labs

ARM Microcontrollers - MCU Leopard Gecko MCU IC 256KB

Learn More

Datasheet

Non-Stocked Lead-Time 12 Weeks

Reel

S/27.48

Quote

Min.: 1,000
Mult.: 1,000

: 1,000

EFM32LG

SMD/SMT

TQFP-64

ARM Cortex M3

256 kB

32 bit

12 bit

48 MHz

50 I/O

32 kB

1.98 V

3.8 V

- 40 C

+ 85 C

Reel

ARM Microcontrollers - MCU Leopard Gecko MCU IC 128KB

EFM32LG840F128G-F-QFN64
Silicon Labs
1,300: S/23.98
Non-Stocked Lead-Time 12 Weeks

Mfr. Part #
EFM32LG840F128G-F-QFN64

Mouser Part #
634-32LG840F128GFQFN

Silicon Labs

ARM Microcontrollers - MCU Leopard Gecko MCU IC 128KB

Learn More

Datasheet

Non-Stocked Lead-Time 12 Weeks

S/23.98

Quote

Min.: 1,300
Mult.: 1,300

EFM32LG

SMD/SMT

QFN-64

ARM Cortex M3

128 kB

32 bit

12 bit

48 MHz

56 I/O

32 kB

1.98 V

3.8 V

- 40 C

+ 85 C

Tray

ARM Microcontrollers - MCU Leopard Gecko MCU IC 128KB

EFM32LG840F128G-F-QFN64R
Silicon Labs
3,000: S/23.47
Non-Stocked Lead-Time 12 Weeks

Mfr. Part #
EFM32LG840F128G-F-QFN64R

Mouser Part #
634-32LG840F128GFQFR

Silicon Labs

ARM Microcontrollers - MCU Leopard Gecko MCU IC 128KB

Learn More

Datasheet

Non-Stocked Lead-Time 12 Weeks

Reel

S/23.47

Min.: 3,000
Mult.: 3,000

: 3,000

EFM32LG

SMD/SMT

QFN-64

ARM Cortex M3

128 kB

32 bit

12 bit

48 MHz

56 I/O

32 kB

1.98 V

3.8 V

- 40 C

+ 85 C

Reel

ARM Microcontrollers - MCU Leopard Gecko MCU IC 64KB

EFM32LG840F64G-F-QFN64
Silicon Labs
1,300: S/20.01
Non-Stocked Lead-Time 12 Weeks

Mfr. Part #
EFM32LG840F64G-F-QFN64

Mouser Part #
634-32LG840F64GFQFN

Silicon Labs

ARM Microcontrollers - MCU Leopard Gecko MCU IC 64KB

Learn More

Datasheet

Non-Stocked Lead-Time 12 Weeks

S/20.01

Quote

Min.: 1,300
Mult.: 1,300

EFM32LG

SMD/SMT

QFN-64

ARM Cortex M3

64 kB

32 bit

12 bit

48 MHz

56 I/O

32 kB

1.98 V

3.8 V

- 40 C

+ 85 C

Tray

ARM Microcontrollers - MCU Leopard Gecko MCU IC 64KB

EFM32LG840F64G-F-QFN64R
Silicon Labs
3,000: S/20.36
Non-Stocked Lead-Time 12 Weeks

Mfr. Part #
EFM32LG840F64G-F-QFN64R

Mouser Part #
634-32LG840F64GFQFR

Silicon Labs

ARM Microcontrollers - MCU Leopard Gecko MCU IC 64KB

Learn More

Datasheet

Non-Stocked Lead-Time 12 Weeks

Reel

S/20.36

Min.: 3,000
Mult.: 3,000

: 3,000

EFM32LG

SMD/SMT

QFN-64

ARM Cortex M3

64 kB

32 bit

12 bit

48 MHz

56 I/O

32 kB

1.98 V

3.8 V

- 40 C

+ 85 C

Reel

EFM32 Leopard Gecko 32-Bit Microcontrollers

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