ARM Microcontrollers - MCU – Mouser Hong Kong

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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: HK$106.94
2,584In Stock

Mfr. Part No.
EFM32LG230F256G-F-QFN64

Mouser Part No
634-32LG230F256GFQFN

Silicon Labs

ARM Microcontrollers - MCU Leopard Gecko MCU IC 256KB

Learn More

Datasheet

2,584In Stock

HK$106.94

HK$86.97

HK$82.94

HK$72.01

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

EFM32LG842F256G-F-QFP64R
Silicon Labs
1: HK$104.56
5,787In Stock

Mfr. Part No.
EFM32LG842F256G-F-QFP64R

Mouser Part No
634-32LG842256GFQFPR

Silicon Labs

ARM Microcontrollers - MCU Leopard Gecko MCU IC 256KB

Learn More

Datasheet

5,787In Stock

Cut Tape

HK$104.56

HK$84.99

HK$81.05

HK$70.36

View

Reel

HK$55.16

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 128KB

EFM32LG230F128G-F-QFN64R
Silicon Labs
1: HK$96.42
2,650In Stock

Mfr. Part No.
EFM32LG230F128G-F-QFN64R

Mouser Part No
634-32LG230F128GFQFR

Silicon Labs

ARM Microcontrollers - MCU Leopard Gecko MCU IC 128KB

Learn More

Datasheet

2,650In Stock

Cut Tape

HK$96.42

HK$74.97

HK$71.51

HK$62.06

View

Reel

HK$46.20

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

EFM32LG380F256G-F-QFP100
Silicon Labs
1: HK$113.76
380In Stock

Mfr. Part No.
EFM32LG380F256G-F-QFP100

Mouser Part No
634-32LG380F256GFQFP

Silicon Labs

ARM Microcontrollers - MCU Leopard Gecko MCU IC 256KB

Learn More

Datasheet

380In Stock

HK$113.76

HK$86.47

HK$82.94

HK$75.87

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 128KB

EFM32LG230F128G-F-QFN64
Silicon Labs
1: HK$94.78
1,814In Stock

Mfr. Part No.
EFM32LG230F128G-F-QFN64

Mouser Part No
634-32LG230F128GFQFN

Silicon Labs

ARM Microcontrollers - MCU Leopard Gecko MCU IC 128KB

Learn More

Datasheet

1,814In Stock

HK$94.78

HK$73.40

HK$67.16

HK$60.83

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

EFM32LG230F256G-F-QFN64R
Silicon Labs
1: HK$106.94
1,937In Stock

Mfr. Part No.
EFM32LG230F256G-F-QFN64R

Mouser Part No
634-32LG230F256GFQFR

Silicon Labs

ARM Microcontrollers - MCU Leopard Gecko MCU IC 256KB

Learn More

Datasheet

1,937In Stock

Cut Tape

HK$106.94

HK$86.97

HK$82.94

HK$72.01

View

Reel

HK$53.84

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 256KB

EFM32LG330F256G-F-QFN64R
Silicon Labs
1: HK$108.83
190In Stock

Mfr. Part No.
EFM32LG330F256G-F-QFN64R

Mouser Part No
634-32LG330F256GFQFR

Silicon Labs

ARM Microcontrollers - MCU Leopard Gecko MCU IC 256KB

Learn More

Datasheet

190In Stock

Cut Tape

HK$108.83

HK$82.69

HK$79.32

HK$69.87

View

Reel

HK$56.47

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: HK$106.94
1,600Expected 29/7/2026

Mfr. Part No.
EFM32LG232F256G-F-QFP64

Mouser Part No
634-32LG232F256GFQFP

Silicon Labs

ARM Microcontrollers - MCU Leopard Gecko MCU IC 256KB

Learn More

Datasheet

1,600Expected 29/7/2026

HK$106.94

HK$86.97

HK$82.94

HK$72.01

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: HK$108.83
1,059In Stock

Mfr. Part No.
EFM32LG332F256G-F-QFP64

Mouser Part No
634-32LG332F256GFQFP

Silicon Labs

ARM Microcontrollers - MCU Leopard Gecko MCU IC 256KB

Learn More

Datasheet

1,059In Stock

HK$108.83

HK$82.69

HK$79.32

HK$69.87

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

EFM32LG330F256G-F-QFN64
Silicon Labs
1: HK$108.83
57In Stock
2,600Expected 21/8/2026

Mfr. Part No.
EFM32LG330F256G-F-QFN64

Mouser Part No
634-32LG330F256GFQFN

Silicon Labs

ARM Microcontrollers - MCU Leopard Gecko MCU IC 256KB

Learn More

Datasheet

57In Stock

2,600Expected 21/8/2026

HK$108.83

HK$82.69

HK$79.32

HK$69.87

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 256KB

EFM32LG290F256G-F-BGA112
Silicon Labs
1: HK$108.42
106In Stock

Mfr. Part No.
EFM32LG290F256G-F-BGA112

Mouser Part No
634-32LG290F256GFBGA

Silicon Labs

ARM Microcontrollers - MCU Leopard Gecko MCU IC 256KB

Learn More

Datasheet

106In Stock

HK$108.42

HK$82.36

HK$78.99

HK$69.62

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: HK$59.18
Non-Stocked Lead-Time 12 Weeks

Mfr. Part No.
EFM32LG280F256G-F-QFP100R

Mouser Part No
634-32L280F256GFQFPR

Silicon Labs

ARM Microcontrollers - MCU Leopard Gecko MCU IC 256KB

Learn More

Datasheet

Non-Stocked Lead-Time 12 Weeks

Reel

HK$59.18

Quote

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: HK$61.73
Non-Stocked Lead-Time 12 Weeks

Mfr. Part No.
EFM32LG295F256G-F-BGA120R

Mouser Part No
634-32L295F256GFBGAR

Silicon Labs

ARM Microcontrollers - MCU Leopard Gecko MCU IC 256KB

Learn More

Datasheet

Non-Stocked Lead-Time 12 Weeks

Reel

HK$61.73

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: HK$39.05
Non-Stocked Lead-Time 12 Weeks

Mfr. Part No.
EFM32LG230F64G-F-QFN64

Mouser Part No
634-32LG230F64GFQFN

Silicon Labs

ARM Microcontrollers - MCU Leopard Gecko MCU IC 64KB

Learn More

Datasheet

Non-Stocked Lead-Time 12 Weeks

HK$39.05

HK$37.15

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: HK$37.15
Non-Stocked Lead-Time 12 Weeks

Mfr. Part No.
EFM32LG230F64G-F-QFN64R

Mouser Part No
634-32LG230F64GFQFR

Silicon Labs

ARM Microcontrollers - MCU Leopard Gecko MCU IC 64KB

Learn More

Datasheet

Non-Stocked Lead-Time 12 Weeks

Reel

HK$37.15

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: HK$45.46
Non-Stocked Lead-Time 12 Weeks

Mfr. Part No.
EFM32LG232F128G-F-QFP64

Mouser Part No
634-32LG232F128GFQFP

Silicon Labs

ARM Microcontrollers - MCU Leopard Gecko MCU IC 128KB

Learn More

Datasheet

Non-Stocked Lead-Time 12 Weeks

HK$45.46

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: HK$45.46
Non-Stocked Lead-Time 12 Weeks

Mfr. Part No.
EFM32LG232F128G-F-QFP64R

Mouser Part No
634-32LG232F128GFQFR

Silicon Labs

ARM Microcontrollers - MCU Leopard Gecko MCU IC 128KB

Learn More

Datasheet

Non-Stocked Lead-Time 12 Weeks

Reel

HK$45.46

HK$43.07

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: HK$52.53
Non-Stocked Lead-Time 12 Weeks

Mfr. Part No.
EFM32LG232F256G-F-QFP64R

Mouser Part No
634-32LG232F256GFQFR

Silicon Labs

ARM Microcontrollers - MCU Leopard Gecko MCU IC 256KB

Learn More

Datasheet

Non-Stocked Lead-Time 12 Weeks

Reel

HK$52.53

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: HK$107.93
Non-Stocked Lead-Time 12 Weeks

Mfr. Part No.
EFM32LG280F256G-F-QFP100

Mouser Part No
634-32LG280F256GFQFP

Silicon Labs

ARM Microcontrollers - MCU Leopard Gecko MCU IC 256KB

Learn More

Datasheet

Non-Stocked Lead-Time 12 Weeks

HK$107.93

HK$81.95

HK$78.58

HK$69.21

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: HK$61.73
Non-Stocked Lead-Time 12 Weeks

Mfr. Part No.
EFM32LG295F256G-F-BGA120

Mouser Part No
634-32LG295F256GFBGA

Silicon Labs

ARM Microcontrollers - MCU Leopard Gecko MCU IC 256KB

Learn More

Datasheet

Non-Stocked Lead-Time 12 Weeks

HK$61.73

Quote

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: HK$55.49
Non-Stocked Lead-Time 12 Weeks

Mfr. Part No.
EFM32LG332F256G-F-QFP64R

Mouser Part No
634-32LG332256GFQFPR

Silicon Labs

ARM Microcontrollers - MCU Leopard Gecko MCU IC 256KB

Learn More

Datasheet

Non-Stocked Lead-Time 12 Weeks

Reel

HK$55.49

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: HK$48.09
Non-Stocked Lead-Time 12 Weeks

Mfr. Part No.
EFM32LG840F128G-F-QFN64

Mouser Part No
634-32LG840F128GFQFN

Silicon Labs

ARM Microcontrollers - MCU Leopard Gecko MCU IC 128KB

Learn More

Datasheet

Non-Stocked Lead-Time 12 Weeks

HK$48.09

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: HK$45.54
Non-Stocked Lead-Time 12 Weeks

Mfr. Part No.
EFM32LG840F128G-F-QFN64R

Mouser Part No
634-32LG840F128GFQFR

Silicon Labs

ARM Microcontrollers - MCU Leopard Gecko MCU IC 128KB

Learn More

Datasheet

Non-Stocked Lead-Time 12 Weeks

Reel

HK$45.54

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: HK$41.68
Non-Stocked Lead-Time 12 Weeks

Mfr. Part No.
EFM32LG840F64G-F-QFN64

Mouser Part No
634-32LG840F64GFQFN

Silicon Labs

ARM Microcontrollers - MCU Leopard Gecko MCU IC 64KB

Learn More

Datasheet

Non-Stocked Lead-Time 12 Weeks

HK$41.68

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: HK$39.54
Non-Stocked Lead-Time 12 Weeks

Mfr. Part No.
EFM32LG840F64G-F-QFN64R

Mouser Part No
634-32LG840F64GFQFR

Silicon Labs

ARM Microcontrollers - MCU Leopard Gecko MCU IC 64KB

Learn More

Datasheet

Non-Stocked Lead-Time 12 Weeks

Reel

HK$39.54

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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