8-bit Microcontrollers - MCU 8051 50 MHz 64 kB flash 4.25 kB RAM 8-bit Busy Bee MCU
EFM8BB31F64G-D-QFP32
Silicon Labs
1:
HK$28.52
5,975 In Stock
Mouser Part No
634-EF8BB31F64GDQP32
Silicon Labs
8-bit Microcontrollers - MCU 8051 50 MHz 64 kB flash 4.25 kB RAM 8-bit Busy Bee MCU
5,975 In Stock
Alternative Packaging
1
HK$28.52
10
HK$21.78
25
HK$20.06
100
HK$17.43
250
View
250
HK$16.52
500
HK$15.29
1,000
HK$13.56
2,500
HK$13.07
5,000
HK$12.82
Buy
Min.: 1
Mult.: 1
Details
CIP-51 8051
64 kB
4.35 kB
QFP-32
50 MHz
10 bit, 12 bit
28 I/O
2.2 V
3.6 V
SMD/SMT
8 bit
- 40 C
+ 85 C
Tray
8-bit Microcontrollers - MCU 8051 50 MHz 32 kB flash 2.25 kB RAM 8-bit Busy Bee MCU
EFM8BB31F32G-D-QFP32R
Silicon Labs
1:
HK$31.24
502 In Stock
Mouser Part No
634-EF8BB31F32GDP32R
Silicon Labs
8-bit Microcontrollers - MCU 8051 50 MHz 32 kB flash 2.25 kB RAM 8-bit Busy Bee MCU
502 In Stock
Alternative Packaging
1
HK$31.24
10
HK$21.13
25
HK$19.56
100
HK$17.02
500
HK$13.48
1,000
View
250
HK$15.95
1,000
HK$11.75
2,500
HK$11.59
5,000
HK$11.18
Buy
Min.: 1
Mult.: 1
Reel :
500
Details
CIP-51 8051
32 kB
2.3 kB
QFP-32
50 MHz
10 bit, 12 bit
28 I/O
2.2 V
3.6 V
SMD/SMT
8 bit
- 40 C
+ 85 C
Reel, Cut Tape
8-bit Microcontrollers - MCU 8051 50 MHz 16 kB flash 2.25 kB RAM 8-bit Busy Bee MCU
EFM8BB31F16I-D-QFP32
Silicon Labs
1:
HK$29.43
16 In Stock
Mouser Part No
634-EF8BB31F16IDQP32
Silicon Labs
8-bit Microcontrollers - MCU 8051 50 MHz 16 kB flash 2.25 kB RAM 8-bit Busy Bee MCU
16 In Stock
Alternative Packaging
1
HK$29.43
10
HK$19.40
25
HK$17.92
100
HK$15.62
250
View
250
HK$14.63
500
HK$12.82
1,000
HK$10.93
2,500
HK$10.60
5,000
HK$10.28
Buy
Min.: 1
Mult.: 1
Details
CIP-51 8051
16 kB
2.3 kB
QFP-32
50 MHz
10 bit, 12 bit
28 I/O
2.2 V
3.6 V
SMD/SMT
8 bit
- 40 C
+ 125 C
Tray
8-bit Microcontrollers - MCU 8051 50 MHz 64 kB flash 4.25 kB RAM 8-bit Busy Bee MCU
EFM8BB31F64G-D-QFP32R
Silicon Labs
1:
HK$35.67
9,677 In Stock
Mouser Part No
634-EF8BB31F64GDP32R
Silicon Labs
8-bit Microcontrollers - MCU 8051 50 MHz 64 kB flash 4.25 kB RAM 8-bit Busy Bee MCU
9,677 In Stock
Alternative Packaging
1
HK$35.67
10
HK$23.59
25
HK$21.45
100
HK$18.25
500
HK$15.54
1,000
View
250
HK$17.34
1,000
HK$15.29
Buy
Min.: 1
Mult.: 1
Reel :
500
Details
CIP-51 8051
64 kB
4.35 kB
QFP-32
50 MHz
10 bit, 12 bit
28 I/O
2.2 V
3.6 V
SMD/SMT
8 bit
- 40 C
+ 85 C
Reel, Cut Tape
8-bit Microcontrollers - MCU 8051 50 MHz 16 kB flash 2.25 kB RAM 8-bit Busy Bee MCU
EFM8BB31F16G-D-QFP32
Silicon Labs
1:
HK$15.95
1,070 In Stock
End of Life
Mouser Part No
634-EF8BB31F16GDQP32
End of Life
Silicon Labs
8-bit Microcontrollers - MCU 8051 50 MHz 16 kB flash 2.25 kB RAM 8-bit Busy Bee MCU
1,070 In Stock
Alternative Packaging
1
HK$15.95
10
HK$13.48
25
HK$12.49
100
HK$11.18
250
View
250
HK$10.44
500
HK$10.19
1,000
HK$10.03
2,500
HK$9.78
5,000
HK$9.54
Buy
Min.: 1
Mult.: 1
Details
CIP-51 8051
16 kB
2.3 kB
QFP-32
50 MHz
10 bit, 12 bit
28 I/O
2.2 V
3.6 V
SMD/SMT
8 bit
- 40 C
+ 85 C
Tray
8-bit Microcontrollers - MCU 8051 75 MHz 16 kB flash 1.25 kB RAM 8-bit Laser Bee MCU
+1 image
EFM8LB10F16E-C-QFP32
Silicon Labs
1:
HK$31.48
134 In Stock
Mouser Part No
634-LB10F16ECQFP32
Silicon Labs
8-bit Microcontrollers - MCU 8051 75 MHz 16 kB flash 1.25 kB RAM 8-bit Laser Bee MCU
134 In Stock
Alternative Packaging
1
HK$31.48
10
HK$21.29
25
HK$19.73
100
HK$17.10
250
View
250
HK$16.03
500
HK$14.06
1,000
HK$12.08
2,500
HK$11.75
5,000
HK$11.43
Buy
Min.: 1
Mult.: 1
Details
CIP-51 8051
16 kB
1.25 kB
QFP-32
72 MHz
10 bit/12 bit/14 bit
28 I/O
2.2 V
3.6 V
SMD/SMT
8 bit
- 40 C
+ 105 C
EFM8LB1
Tray
8-bit Microcontrollers - MCU 8051 75 MHz 16 kB flash 1.25 kB RAM 8-bit Laser Bee MCU
+1 image
EFM8LB11F16E-C-QFP32
Silicon Labs
1:
HK$33.13
36 In Stock
Mouser Part No
634-LB11F16ECQFP32
Silicon Labs
8-bit Microcontrollers - MCU 8051 75 MHz 16 kB flash 1.25 kB RAM 8-bit Laser Bee MCU
36 In Stock
Alternative Packaging
1
HK$33.13
10
HK$21.95
25
HK$19.97
100
HK$16.93
250
View
250
HK$16.11
500
HK$14.47
1,000
HK$12.91
2,500
HK$12.49
5,000
HK$12.25
Buy
Min.: 1
Mult.: 1
Details
CIP-51 8051
16 kB
1.25 kB
QFP-32
72 MHz
10 bit/12 bit/14 bit
28 I/O
2.2 V
3.6 V
SMD/SMT
8 bit
- 40 C
+ 105 C
EFM8LB1
Tray
8-bit Microcontrollers - MCU 8051 75 MHz 64 kB flash 4.25 kB RAM 8-bit Laser Bee MCU
+1 image
EFM8LB12F64E-C-QFP32R
Silicon Labs
1:
HK$32.96
237 In Stock
500 Expected 29/1/2027
Mouser Part No
634-LB12F64ECQFP32R
Silicon Labs
8-bit Microcontrollers - MCU 8051 75 MHz 64 kB flash 4.25 kB RAM 8-bit Laser Bee MCU
237 In Stock
500 Expected 29/1/2027
Alternative Packaging
1
HK$32.96
10
HK$26.88
25
HK$24.74
100
HK$22.03
500
HK$18.91
1,000
View
250
HK$20.63
1,000
HK$17.59
2,500
HK$17.02
5,000
HK$16.85
Buy
Min.: 1
Mult.: 1
Reel :
500
Details
CIP-51 8051
64 kB
4.25 kB
QFP-32
72 MHz
10 bit/12 bit/14 bit
28 I/O
2.2 V
3.6 V
SMD/SMT
8 bit
- 40 C
+ 105 C
EFM8LB1
Reel, Cut Tape
8-bit Microcontrollers - MCU 8051 50 MHz 64 kB flash 4.25 kB RAM 8-bit Busy Bee MCU
EFM8BB31F64I-D-QFP32
Silicon Labs
1:
HK$38.88
5 In Stock
End of Life
Mouser Part No
634-EF8BB31F64IDQP32
End of Life
Silicon Labs
8-bit Microcontrollers - MCU 8051 50 MHz 64 kB flash 4.25 kB RAM 8-bit Busy Bee MCU
5 In Stock
Alternative Packaging
1
HK$38.88
10
HK$25.65
25
HK$23.43
100
HK$19.89
250
View
250
HK$18.82
500
HK$16.93
1,000
HK$16.52
Buy
Min.: 1
Mult.: 1
Details
CIP-51 8051
64 kB
4.35 kB
QFP-32
50 MHz
10 bit, 12 bit
28 I/O
2.2 V
3.6 V
SMD/SMT
8 bit
- 40 C
+ 125 C
Tray
8-bit Microcontrollers - MCU 8051 75 MHz 64 kB flash 4.25 kB RAM 8-bit Laser Bee MCU
+1 image
EFM8LB12F64E-C-QFP32
Silicon Labs
1:
HK$30.33
9,409 On Order
Mouser Part No
634-LB12F64ECQFP32
Silicon Labs
8-bit Microcontrollers - MCU 8051 75 MHz 64 kB flash 4.25 kB RAM 8-bit Laser Bee MCU
9,409 On Order
View Dates
Alternative Packaging
On Order:
4,409 Expected 11/8/2026
5,000 Expected 14/8/2026
Factory Lead Time:
20 Weeks
1
HK$30.33
10
HK$25.32
25
HK$23.51
100
HK$21.13
250
View
250
HK$19.81
500
HK$18.99
1,000
HK$17.84
2,500
HK$17.10
5,000
HK$16.93
Buy
Min.: 1
Mult.: 1
Details
CIP-51 8051
64 kB
4.25 kB
QFP-32
72 MHz
10 bit/12 bit/14 bit
28 I/O
2.2 V
3.6 V
SMD/SMT
8 bit
- 40 C
+ 105 C
EFM8LB1
Tray
8-bit Microcontrollers - MCU 8051 75 MHz 32 kB flash 2.25 kB RAM 8-bit Laser Bee MCU
+1 image
EFM8LB12F32E-C-QFP32
Silicon Labs
1:
HK$42.74
1,043 Expected 16/10/2026
Mouser Part No
634-LB12F32ECQFP32
Silicon Labs
8-bit Microcontrollers - MCU 8051 75 MHz 32 kB flash 2.25 kB RAM 8-bit Laser Bee MCU
1,043 Expected 16/10/2026
Alternative Packaging
1
HK$42.74
10
HK$28.28
25
HK$25.73
100
HK$21.87
250
View
250
HK$20.80
500
HK$18.66
1,000
HK$16.60
2,500
HK$16.19
5,000
HK$16.03
Buy
Min.: 1
Mult.: 1
Details
CIP-51 8051
32 kB
2.25 kB
QFP-32
72 MHz
10 bit/12 bit/14 bit
28 I/O
2.2 V
3.6 V
SMD/SMT
8 bit
- 40 C
+ 105 C
EFM8LB1
Tray
8-bit Microcontrollers - MCU USB, 64kB/4352B RAM, 10b Diff-ADC
+1 image
EFM8UB20F64G-A-QFP32R
Silicon Labs
500:
HK$13.56
Non-Stocked
Mouser Part No
634-8UB20F64GAQFP32R
Silicon Labs
8-bit Microcontrollers - MCU USB, 64kB/4352B RAM, 10b Diff-ADC
Non-Stocked
500
HK$13.56
1,000
HK$12.17
2,500
HK$11.75
5,000
HK$11.59
Buy
Min.: 500
Mult.: 500
Reel :
500
Details
QFP-32
SMD/SMT
EFM8UB2
Reel
8-bit Microcontrollers - MCU 8051 50 MHz 16 kB flash 2.25 kB RAM 8-bit Busy Bee MCU
EFM8BB31F16I-D-QFP32R
Silicon Labs
1:
HK$27.78
Non-Stocked Lead-Time 16 Weeks
Mouser Part No
634-EF8BB31F16IDP32R
Silicon Labs
8-bit Microcontrollers - MCU 8051 50 MHz 16 kB flash 2.25 kB RAM 8-bit Busy Bee MCU
Non-Stocked Lead-Time 16 Weeks
Alternative Packaging
1
HK$27.78
10
HK$18.33
25
HK$16.93
100
HK$14.71
500
HK$11.01
1,000
View
250
HK$13.81
1,000
HK$10.44
2,500
HK$10.28
5,000
HK$10.11
Buy
Min.: 1
Mult.: 1
Reel :
500
Details
CIP-51 8051
16 kB
2.3 kB
QFP-32
50 MHz
10 bit, 12 bit
28 I/O
2.2 V
3.6 V
SMD/SMT
8 bit
- 40 C
+ 125 C
Reel, Cut Tape
8-bit Microcontrollers - MCU 8051 50 MHz 32 kB flash 2.25 kB RAM 8-bit Busy Bee MCU
EFM8BB31F32G-D-QFP32
Silicon Labs
1:
HK$29.51
Non-Stocked Lead-Time 16 Weeks
Mouser Part No
634-EF8BB31F32GDQP32
Silicon Labs
8-bit Microcontrollers - MCU 8051 50 MHz 32 kB flash 2.25 kB RAM 8-bit Busy Bee MCU
Non-Stocked Lead-Time 16 Weeks
Alternative Packaging
1
HK$29.51
10
HK$19.97
25
HK$18.50
100
HK$16.03
250
View
250
HK$15.04
500
HK$13.15
1,000
HK$11.51
2,500
HK$11.26
5,000
HK$11.10
Buy
Min.: 1
Mult.: 1
Details
CIP-51 8051
32 kB
2.3 kB
QFP-32
50 MHz
10 bit, 12 bit
28 I/O
2.2 V
3.6 V
SMD/SMT
8 bit
- 40 C
+ 85 C
Tray
8-bit Microcontrollers - MCU 8051 75 MHz 16 kB flash 1.25 kB RAM 8-bit Laser Bee MCU
+1 image
EFM8LB10F16E-C-QFP32R
Silicon Labs
1:
HK$31.48
Non-Stocked Lead-Time 20 Weeks
Mouser Part No
634-LB10F16ECQFP32R
Silicon Labs
8-bit Microcontrollers - MCU 8051 75 MHz 16 kB flash 1.25 kB RAM 8-bit Laser Bee MCU
Non-Stocked Lead-Time 20 Weeks
Alternative Packaging
1
HK$31.48
10
HK$21.29
25
HK$19.73
100
HK$17.10
500
HK$12.91
1,000
View
250
HK$16.03
1,000
HK$12.17
2,500
HK$12.08
5,000
HK$11.92
Buy
Min.: 1
Mult.: 1
Reel :
500
Details
CIP-51 8051
16 kB
1.25 kB
QFP-32
72 MHz
10 bit/12 bit/14 bit
28 I/O
2.2 V
3.6 V
SMD/SMT
8 bit
- 40 C
+ 105 C
EFM8LB1
Reel, Cut Tape
8-bit Microcontrollers - MCU 8051 75 MHz 16 kB flash 1.25 kB RAM 8-bit Laser Bee MCU
+1 image
EFM8LB11F16E-C-QFP32R
Silicon Labs
1:
HK$33.21
Non-Stocked Lead-Time 20 Weeks
Mouser Part No
634-LB11F16ECQFP32R
Silicon Labs
8-bit Microcontrollers - MCU 8051 75 MHz 16 kB flash 1.25 kB RAM 8-bit Laser Bee MCU
Non-Stocked Lead-Time 20 Weeks
Alternative Packaging
1
HK$33.21
10
HK$22.03
25
HK$20.06
100
HK$17.02
500
HK$13.89
1,000
View
250
HK$16.19
1,000
HK$13.07
2,500
HK$12.91
5,000
HK$12.74
Buy
Min.: 1
Mult.: 1
Reel :
500
Details
CIP-51 8051
16 kB
1.25 kB
QFP-32
72 MHz
10 bit/12 bit/14 bit
28 I/O
2.2 V
3.6 V
SMD/SMT
8 bit
- 40 C
+ 105 C
EFM8LB1
Reel, Cut Tape
8-bit Microcontrollers - MCU 8051 75 MHz 32 kB flash 2.25 kB RAM 8-bit Laser Bee MCU
+1 image
EFM8LB11F32E-C-QFP32
Silicon Labs
1,250:
HK$14.80
Non-Stocked Lead-Time 20 Weeks
Mouser Part No
634-LB11F32ECQFP32
Silicon Labs
8-bit Microcontrollers - MCU 8051 75 MHz 32 kB flash 2.25 kB RAM 8-bit Laser Bee MCU
Non-Stocked Lead-Time 20 Weeks
Alternative Packaging
1,250
HK$14.80
2,500
HK$14.55
5,000
HK$14.39
Buy
Min.: 1,250
Mult.: 1,250
Details
CIP-51 8051
32 kB
2.25 kB
QFP-32
72 MHz
10 bit/12 bit/14 bit
28 I/O
2.2 V
3.6 V
SMD/SMT
8 bit
- 40 C
+ 105 C
EFM8LB1
Tray
8-bit Microcontrollers - MCU 8051 75 MHz 32 kB flash 2.25 kB RAM 8-bit Laser Bee MCU
+1 image
EFM8LB11F32E-C-QFP32R
Silicon Labs
500:
HK$15.70
Non-Stocked Lead-Time 20 Weeks
Mouser Part No
634-LB11F32ECQFP32R
Silicon Labs
8-bit Microcontrollers - MCU 8051 75 MHz 32 kB flash 2.25 kB RAM 8-bit Laser Bee MCU
Non-Stocked Lead-Time 20 Weeks
Alternative Packaging
500
HK$15.70
1,000
HK$14.80
2,500
HK$14.55
5,000
HK$14.39
Buy
Min.: 500
Mult.: 500
Reel :
500
Details
CIP-51 8051
32 kB
2.25 kB
QFP-32
72 MHz
10 bit/12 bit/14 bit
28 I/O
2.2 V
3.6 V
SMD/SMT
8 bit
- 40 C
+ 105 C
EFM8LB1
Reel
8-bit Microcontrollers - MCU 8051 75 MHz 32 kB flash 2.25 kB RAM 8-bit Laser Bee MCU
+1 image
EFM8LB12F32E-C-QFP32R
Silicon Labs
500:
HK$16.93
Non-Stocked Lead-Time 20 Weeks
Mouser Part No
634-LB12F32ECQFP32R
Silicon Labs
8-bit Microcontrollers - MCU 8051 75 MHz 32 kB flash 2.25 kB RAM 8-bit Laser Bee MCU
Non-Stocked Lead-Time 20 Weeks
Alternative Packaging
500
HK$16.93
1,000
HK$15.95
2,500
HK$15.70
5,000
HK$15.54
Buy
Min.: 500
Mult.: 500
Reel :
500
Details
CIP-51 8051
32 kB
2.25 kB
QFP-32
72 MHz
10 bit/12 bit/14 bit
28 I/O
2.2 V
3.6 V
SMD/SMT
8 bit
- 40 C
+ 105 C
EFM8LB1
Reel
8-bit Microcontrollers - MCU 8051 50 MHz 16 kB flash 2.25 kB RAM 8-bit Busy Bee MCU
EFM8BB31F16G-D-QFP32R
Silicon Labs
1:
HK$26.14
Non-Stocked Lead-Time 30 Weeks
End of Life
Mouser Part No
634-EF8BB31F16GDP32R
End of Life
Silicon Labs
8-bit Microcontrollers - MCU 8051 50 MHz 16 kB flash 2.25 kB RAM 8-bit Busy Bee MCU
Non-Stocked Lead-Time 30 Weeks
Alternative Packaging
1
HK$26.14
10
HK$17.02
25
HK$15.62
100
HK$13.40
250
HK$12.58
500
HK$10.60
Buy
Min.: 1
Mult.: 1
Reel :
500
Details
CIP-51 8051
16 kB
2.3 kB
QFP-32
50 MHz
10 bit, 12 bit
28 I/O
2.2 V
3.6 V
SMD/SMT
8 bit
- 40 C
+ 85 C
Reel, Cut Tape
8-bit Microcontrollers - MCU 8051 50 MHz 32 kB flash 2.25 kB RAM 8-bit Busy Bee MCU
EFM8BB31F32I-D-QFP32R
Silicon Labs
1:
HK$31.89
Non-Stocked Lead-Time 30 Weeks
End of Life
Mouser Part No
634-EF8BB31F32IDP32R
End of Life
Silicon Labs
8-bit Microcontrollers - MCU 8051 50 MHz 32 kB flash 2.25 kB RAM 8-bit Busy Bee MCU
Non-Stocked Lead-Time 30 Weeks
Alternative Packaging
1
HK$31.89
10
HK$21.04
25
HK$19.23
100
HK$16.28
250
HK$15.45
500
HK$13.65
Buy
Min.: 1
Mult.: 1
Reel :
500
Details
CIP-51 8051
32 kB
2.3 kB
QFP-32
50 MHz
10 bit, 12 bit
28 I/O
2.2 V
3.6 V
SMD/SMT
8 bit
- 40 C
+ 125 C
Reel, Cut Tape