8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 16 kB flash 1.28 kB RAM 16 GPIO BB5 8-bit MCU
EFM8BB51F16I-C-QFN20
Silicon Labs
1:
$1.59
194 In Stock
Mouser Part No
634-EFM851F16ICQFN20
Silicon Labs
8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 16 kB flash 1.28 kB RAM 16 GPIO BB5 8-bit MCU
194 In Stock
Alternative Packaging
1
$1.59
10
$1.02
25
$0.925
600
$0.921
1,000
View
1,000
$0.773
4,000
$0.485
8,000
$0.443
Buy
Min.: 1
Mult.: 1
Details
8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 16 kB flash 1.28 kB RAM 16 GPIO BB5 8-bit MCU
EFM8BB51F16I-C-TSSOP20
Silicon Labs
1:
$1.07
148 In Stock
Mouser Part No
634-EFM851F16TSSOP20
Silicon Labs
8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 16 kB flash 1.28 kB RAM 16 GPIO BB5 8-bit MCU
148 In Stock
Alternative Packaging
1
$1.07
10
$0.911
25
$0.80
100
$0.756
200
View
200
$0.584
600
$0.555
1,000
$0.50
4,000
$0.482
Buy
Min.: 1
Mult.: 1
Details
8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 16 kB flash 1.28 kB RAM 16 GPIO BB5 8-bit MCU
EFM8BB52F16G-C-TSSOP20
Silicon Labs
1:
$0.82
410 In Stock
Mouser Part No
634-EFM852F16GCTOP20
Silicon Labs
8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 16 kB flash 1.28 kB RAM 16 GPIO BB5 8-bit MCU
410 In Stock
Alternative Packaging
1
$0.82
10
$0.699
25
$0.614
200
$0.613
600
View
600
$0.511
1,000
$0.459
4,000
$0.442
Buy
Min.: 1
Mult.: 1
Details
8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 32 kB flash 2.304 kB RAM 16 GPIO BB5 8-bit MCU
EFM8BB52F32I-C-QFN20R
Silicon Labs
1:
$1.64
Non-Stocked Lead-Time 16 Weeks
Mouser Part No
634-EFM852F32IQFN20R
Silicon Labs
8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 32 kB flash 2.304 kB RAM 16 GPIO BB5 8-bit MCU
Non-Stocked Lead-Time 16 Weeks
Alternative Packaging
1
$1.64
10
$1.05
25
$0.932
100
$0.767
2,500
$0.473
7,500
View
250
$0.669
500
$0.634
1,000
$0.532
7,500
$0.457
Buy
Min.: 1
Mult.: 1
Details
8-bit Microcontrollers - MCU 8051 50 MHz 16 kB flash 2.25 kB RAM 8-bit Busy Bee MCU
+1 image
EFM8BB21F16A-C-QFN20
Silicon Labs
1:
$2.71
476 In Stock
2,520 Expected 27/03/2026
Mouser Part No
634-EFM8BB21F16FN20
Silicon Labs
8-bit Microcontrollers - MCU 8051 50 MHz 16 kB flash 2.25 kB RAM 8-bit Busy Bee MCU
476 In Stock
2,520 Expected 27/03/2026
Alternative Packaging
1
$2.71
10
$2.27
25
$2.11
250
$2.08
500
View
500
$1.95
1,000
$1.62
2,520
$1.56
5,040
$1.51
Buy
Min.: 1
Mult.: 1
Details
8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 16 kB flash 1.28 kB RAM 29 GPIO BB5 8-bit MCU
EFM8BB52F16G-C-QFN32
Silicon Labs
1:
$0.70
2,597 In Stock
Mouser Part No
634-EFM852F16GCQFN32
Silicon Labs
8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 16 kB flash 1.28 kB RAM 29 GPIO BB5 8-bit MCU
2,597 In Stock
Alternative Packaging
1
$0.70
10
$0.598
25
$0.557
100
$0.47
200
View
200
$0.469
1,000
$0.391
4,000
$0.377
8,000
$0.374
Buy
Min.: 1
Mult.: 1
Details
8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 32 kB flash 2.304 kB RAM 29 GPIO BB5 8-bit MCU
EFM8BB52F32I-C-QFN32
Silicon Labs
1:
$0.86
439 In Stock
Mouser Part No
634-EFM852F32ICQFN32
Silicon Labs
8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 32 kB flash 2.304 kB RAM 29 GPIO BB5 8-bit MCU
439 In Stock
Alternative Packaging
1
$0.86
10
$0.739
25
$0.687
200
$0.659
600
View
600
$0.64
1,000
$0.485
4,000
$0.468
8,000
$0.462
Buy
Min.: 1
Mult.: 1
Details
8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 16 kB flash 1.28 kB RAM 16 GPIO BB5 8-bit MCU
EFM8BB51F16G-C-QFN20
Silicon Labs
1:
$0.93
156 In Stock
Mouser Part No
634-EFM851F16GCQFN20
Silicon Labs
8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 16 kB flash 1.28 kB RAM 16 GPIO BB5 8-bit MCU
156 In Stock
Alternative Packaging
1
$0.93
10
$0.791
25
$0.736
100
$0.621
200
View
200
$0.587
600
$0.575
1,000
$0.483
4,000
$0.416
8,000
$0.409
Buy
Min.: 1
Mult.: 1
Details
8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 16 kB flash 1.28 kB RAM 16 GPIO BB5 8-bit MCU
EFM8BB51F16G-C-TSSOP20
Silicon Labs
1:
$0.84
500 In Stock
Mouser Part No
634-EFM8516GCTSSOP20
Silicon Labs
8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 16 kB flash 1.28 kB RAM 16 GPIO BB5 8-bit MCU
500 In Stock
Alternative Packaging
1
$0.84
10
$0.719
25
$0.669
100
$0.564
200
View
200
$0.534
600
$0.519
1,000
$0.472
4,000
$0.45
8,000
$0.444
Buy
Min.: 1
Mult.: 1
Details
8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 8 kB flash 1.28 kB RAM 16 GPIO BB5 8-bit MCU
EFM8BB51F8G-C-TSSOP20
Silicon Labs
1:
$0.79
297 In Stock
Mouser Part No
634-EFM851F8GCTSOP20
Silicon Labs
8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 8 kB flash 1.28 kB RAM 16 GPIO BB5 8-bit MCU
297 In Stock
Alternative Packaging
1
$0.79
10
$0.679
25
$0.597
200
$0.592
600
View
600
$0.496
1,000
$0.446
4,000
$0.429
Buy
Min.: 1
Mult.: 1
Details
8-bit Microcontrollers - MCU 8051 25 MHz 32 kB flash 4 kB RAM 8-bit Sleepy Bee MCU
+1 image
EFM8SB20F32G-B-QFN32
Silicon Labs
1:
$3.68
1,357 In Stock
Mouser Part No
634-EFM8SBF32GBQFN32
Silicon Labs
8-bit Microcontrollers - MCU 8051 25 MHz 32 kB flash 4 kB RAM 8-bit Sleepy Bee MCU
1,357 In Stock
Alternative Packaging
1
$3.68
10
$2.37
25
$1.71
100
$1.55
250
View
250
$1.41
500
$1.32
2,500
$1.16
Buy
Min.: 1
Mult.: 1
Details
Development Boards & Kits - 8051
EFM8BB1LCK
Silicon Labs
1:
$20.30
90 In Stock
Mouser Part No
634-EFM8BB1LCK
Silicon Labs
Development Boards & Kits - 8051
90 In Stock
Buy
Min.: 1
Mult.: 1
8-bit Microcontrollers - MCU 8051 48 MHz 64 kB flash 4 kB RAM 8-bit Universal Bee MCU
+1 image
EFM8UB20F64G-B-QFN32
Silicon Labs
1:
$3.21
350 In Stock
Mouser Part No
634-EFM8UBF64GBQFN32
Silicon Labs
8-bit Microcontrollers - MCU 8051 48 MHz 64 kB flash 4 kB RAM 8-bit Universal Bee MCU
350 In Stock
Alternative Packaging
1
$3.21
10
$2.68
25
$2.29
100
$2.17
250
View
250
$2.07
500
$2.01
1,000
$1.93
2,500
$1.84
4,599
$1.79
Buy
Min.: 1
Mult.: 1
Details
8-bit Microcontrollers - MCU 8051 48 MHz 64 kB flash 4 kB RAM 8-bit Universal Bee MCU
EFM8UB20F64G-B-QFP32
Silicon Labs
1:
$5.36
2,068 In Stock
Mouser Part No
634-EFM8UBF64GBQFP32
Silicon Labs
8-bit Microcontrollers - MCU 8051 48 MHz 64 kB flash 4 kB RAM 8-bit Universal Bee MCU
2,068 In Stock
Alternative Packaging
1
$5.36
10
$3.66
25
$2.99
250
$2.59
500
View
500
$2.39
1,000
$2.15
2,500
$1.90
Buy
Min.: 1
Mult.: 1
Details
8-bit Microcontrollers - MCU 8051 48 MHz 32 kB flash 2 kB RAM 8-bit Universal Bee MCU
+1 image
EFM8UB20F32G-B-QFP32
Silicon Labs
1:
$3.21
2,042 In Stock
Mouser Part No
634-EFM8UBF32GBQFP32
Silicon Labs
8-bit Microcontrollers - MCU 8051 48 MHz 32 kB flash 2 kB RAM 8-bit Universal Bee MCU
2,042 In Stock
Alternative Packaging
1
$3.21
10
$2.68
25
$2.49
100
$2.23
250
View
250
$2.10
500
$2.01
1,000
$1.97
2,500
$1.84
5,000
$1.79
Buy
Min.: 1
Mult.: 1
Details
8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 32 kB flash 2.304 kB RAM 16 GPIO BB5 8-bit MCU
EFM8BB52F32I-C-QFN20
Silicon Labs
1:
$0.81
30 In Stock
Mouser Part No
634-EFM852F32ICQFN20
Silicon Labs
8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 32 kB flash 2.304 kB RAM 16 GPIO BB5 8-bit MCU
30 In Stock
Alternative Packaging
1
$0.81
10
$0.693
25
$0.645
100
$0.544
200
View
200
$0.515
600
$0.50
1,000
$0.454
4,000
$0.438
Buy
Min.: 1
Mult.: 1
Details
8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 16 kB flash 1.28 kB RAM 16 GPIO BB5 8-bit MCU
EFM8BB51F16I-C-QFN20R
Silicon Labs
1:
$0.82
20,080 In Stock
Mouser Part No
634-EFM851F16IQFN20R
Silicon Labs
8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 16 kB flash 1.28 kB RAM 16 GPIO BB5 8-bit MCU
20,080 In Stock
Alternative Packaging
1
$0.82
10
$0.699
25
$0.65
100
$0.58
2,500
$0.434
7,500
View
250
$0.539
500
$0.512
1,000
$0.46
7,500
$0.424
Buy
Min.: 1
Mult.: 1
8-bit Microcontrollers - MCU 8051 48 MHz 32 kB flash 2 kB RAM 8-bit Universal Bee MCU
+1 image
EFM8UB20F32G-B-QFP48R
Silicon Labs
1:
$4.70
281 In Stock
Mouser Part No
634-EFM8UB32GBQFP48R
Silicon Labs
8-bit Microcontrollers - MCU 8051 48 MHz 32 kB flash 2 kB RAM 8-bit Universal Bee MCU
281 In Stock
Alternative Packaging
1
$4.70
10
$3.99
500
$2.44
1,000
$2.18
2,500
$2.14
5,000
$2.11
Buy
Min.: 1
Mult.: 1
Details
8-bit Microcontrollers - MCU 8051 25 MHz 64 kB flash 4 kB RAM 8-bit Sleepy Bee MCU
EFM8SB20F64G-B-QFP32
Silicon Labs
1:
$2.97
739 In Stock
Mouser Part No
634-EFM8SBF64GBQFP32
Silicon Labs
8-bit Microcontrollers - MCU 8051 25 MHz 64 kB flash 4 kB RAM 8-bit Sleepy Bee MCU
739 In Stock
Alternative Packaging
1
$2.97
10
$2.49
25
$2.31
100
$2.07
250
View
250
$1.94
500
$1.86
1,000
$1.79
2,500
$1.70
5,000
$1.66
Buy
Min.: 1
Mult.: 1
Details
8-bit Microcontrollers - MCU 8051 25 MHz 16 kB flash 4 kB RAM 8-bit Sleepy Bee MCU
+1 image
EFM8SB20F16G-B-QFN24
Silicon Labs
1:
$1.83
446 In Stock
Mouser Part No
634-EFM8SBF16GBQFN24
Silicon Labs
8-bit Microcontrollers - MCU 8051 25 MHz 16 kB flash 4 kB RAM 8-bit Sleepy Bee MCU
446 In Stock
Alternative Packaging
1
$1.83
10
$1.55
25
$1.29
100
$1.23
250
View
250
$1.19
500
$1.14
1,000
$1.10
1,911
$1.03
5,733
$1.00
Buy
Min.: 1
Mult.: 1
Details
8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 8 kB flash 1.28 kB RAM 16 GPIO BB5 8-bit MCU
EFM8BB51F8G-C-QFN20
Silicon Labs
1:
$1.53
294 In Stock
Mouser Part No
634-EFM8B51F8GCQFN20
Silicon Labs
8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 8 kB flash 1.28 kB RAM 16 GPIO BB5 8-bit MCU
294 In Stock
Alternative Packaging
1
$1.53
10
$0.784
25
$0.782
600
$0.532
1,000
View
1,000
$0.482
4,000
$0.436
8,000
$0.388
Buy
Min.: 1
Mult.: 1
Details
8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 32 kB flash 2.304 kB RAM 16 GPIO BB5 8-bit MCU
EFM8BB52F32I-C-TSSOP20
Silicon Labs
1:
$1.01
543 In Stock
Mouser Part No
634-EFM852F32ICTOP20
Silicon Labs
8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 32 kB flash 2.304 kB RAM 16 GPIO BB5 8-bit MCU
543 In Stock
Alternative Packaging
1
$1.01
10
$0.858
25
$0.753
200
$0.752
1,000
View
1,000
$0.567
4,000
$0.547
Buy
Min.: 1
Mult.: 1
Details
8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 16 kB flash 1.28 kB RAM 16 GPIO BB5 8-bit MCU
EFM8BB52F16G-C-QFN20
Silicon Labs
1:
$0.79
200 Expected 03/03/2026
Mouser Part No
634-EFM852F16GCQFN20
Silicon Labs
8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 16 kB flash 1.28 kB RAM 16 GPIO BB5 8-bit MCU
200 Expected 03/03/2026
Alternative Packaging
1
$0.79
10
$0.674
100
$0.628
200
$0.555
600
View
600
$0.513
1,000
$0.465
4,000
$0.42
8,000
$0.374
Buy
Min.: 1
Mult.: 1
Details
8-bit Microcontrollers - MCU 8051 25 MHz 16 kB flash 4 kB RAM 8-bit Sleepy Bee MCU
+1 image
EFM8SB20F16G-B-QFN24R
Silicon Labs
1,500:
$1.03
Non-Stocked Lead-Time 12 Weeks
Mouser Part No
634-EFM8SB16GBQFN24R
Silicon Labs
8-bit Microcontrollers - MCU 8051 25 MHz 16 kB flash 4 kB RAM 8-bit Sleepy Bee MCU
Non-Stocked Lead-Time 12 Weeks
Alternative Packaging
Buy
Min.: 1,500
Mult.: 1,500
Details
8-bit Microcontrollers - MCU 8051 25 MHz 64 kB flash 4 kB RAM 8-bit Sleepy Bee MCU
+1 image
EFM8SB20F64G-B-QFP32R
Silicon Labs
500:
$2.13
Non-Stocked Lead-Time 12 Weeks
Mouser Part No
634-EFM8SB64GBQFP32R
Silicon Labs
8-bit Microcontrollers - MCU 8051 25 MHz 64 kB flash 4 kB RAM 8-bit Sleepy Bee MCU
Non-Stocked Lead-Time 12 Weeks
Alternative Packaging
500
$2.13
1,000
$1.97
2,500
$1.95
5,000
$1.93
Buy
Min.: 500
Mult.: 500
Details