8-bit Microcontrollers - MCU 8051 48 MHz 64 kB flash 4 kB RAM 8-bit Universal Bee MCU
+1 image
EFM8UB20F64G-B-QFP48
Silicon Labs
1:
$3.63
6,820 In Stock
Mouser Part No 634-EFM8UBF64GBQFP48
Silicon Labs
8-bit Microcontrollers - MCU 8051 48 MHz 64 kB flash 4 kB RAM 8-bit Universal Bee MCU
6,820 In Stock
Alternative Packaging
1
$3.63
10
$3.03
25
$2.81
100
$2.53
250
View
250
$2.37
500
$2.28
1,000
$2.14
2,500
$2.08
5,000
$2.07
Buy
Min.: 1 Mult.: 1
Details
CIP-51 8051
64 kB
4.25 kB
QFP-48
48 MHz
10 bit
40 I/O
3.3 V
3.3 V
SMD/SMT
8 bit
- 40 C
+ 85 C
EFM8UB2
Tray
8-bit Microcontrollers - MCU 8051 50 MHz 16 kB flash 2.25 kB RAM 8-bit Busy Bee MCU
EFM8BB21F16G-C-QFN20R
Silicon Labs
1:
$1.29
45,477 In Stock
Mouser Part No 634-8BB21F16GCQFN20R
Silicon Labs
8-bit Microcontrollers - MCU 8051 50 MHz 16 kB flash 2.25 kB RAM 8-bit Busy Bee MCU
45,477 In Stock
Alternative Packaging
1
$1.29
10
$1.10
25
$1.02
100
$0.904
1,500
$0.72
3,000
View
250
$0.842
500
$0.801
1,000
$0.72
3,000
$0.689
7,500
$0.68
Buy
Min.: 1 Mult.: 1
Details
CIP-51 8051
16 kB
2.3 kB
QFN-20
50 MHz
12 bit
16 I/O
2.2 V
3.6 V
SMD/SMT
8 bit
- 40 C
+ 85 C
EFM8BB2
Reel, Cut Tape, MouseReel
8-bit Microcontrollers - MCU 8051 25 MHz 16 kB flash 2 kB RAM 8-bit Universal Bee MCU
EFM8UB10F16G-C-QFN20R
Silicon Labs
1:
$2.06
26,682 In Stock
Mouser Part No 634-8UB10F16GCQFN20R
Silicon Labs
8-bit Microcontrollers - MCU 8051 25 MHz 16 kB flash 2 kB RAM 8-bit Universal Bee MCU
26,682 In Stock
Alternative Packaging
1
$2.06
10
$1.73
25
$1.61
100
$1.44
1,500
$1.19
3,000
View
250
$1.34
500
$1.28
1,000
$1.25
3,000
$1.16
Buy
Min.: 1 Mult.: 1
Details
CIP-51 8051
16 kB
2.25 kB
QFN-20
50 MHz
12 bit
13 I/O
2.2 V
3.6 V
SMD/SMT
8 bit
- 40 C
+ 85 C
EFM8UB
Reel, Cut Tape, MouseReel
8-bit Microcontrollers - MCU 8051 25 MHz 8 kB flash 2 kB RAM 8-bit Universal Bee MCU
+2 images
EFM8UB10F8G-C-QFN20R
Silicon Labs
1:
$1.42
61,634 In Stock
Mouser Part No 634-8UB10F8GCQFN20R
Silicon Labs
8-bit Microcontrollers - MCU 8051 25 MHz 8 kB flash 2 kB RAM 8-bit Universal Bee MCU
61,634 In Stock
Alternative Packaging
1
$1.42
10
$1.11
100
$0.998
250
$0.93
1,500
$0.827
3,000
View
500
$0.886
1,000
$0.866
3,000
$0.765
9,000
$0.755
Buy
Min.: 1 Mult.: 1
Details
CIP-51 8051
8 kB
2.25 kB
QFN-20
50 MHz
12 bit
13 I/O
2.2 V
3.6 V
SMD/SMT
8 bit
- 40 C
+ 85 C
EFM8UB
Reel, Cut Tape, MouseReel
8-bit Microcontrollers - MCU 8051 25 MHz 8 kB flash 0.5 kB RAM 8-bit Busy Bee MCU
+4 images
EFM8BB10F8G-A-SOIC16R
Silicon Labs
1:
$1.01
4,385 In Stock
Mouser Part No 634-8BB10F8GASO16R
Silicon Labs
8-bit Microcontrollers - MCU 8051 25 MHz 8 kB flash 0.5 kB RAM 8-bit Busy Bee MCU
4,385 In Stock
Alternative Packaging
1
$1.01
10
$0.858
25
$0.797
100
$0.711
2,500
$0.536
7,500
View
250
$0.662
500
$0.629
1,000
$0.568
7,500
$0.525
Buy
Min.: 1 Mult.: 1
Details
CIP-51 8051
8 kB
512 B
SOIC-16
25 MHz
12 bit
13 I/O
2.2 V
3.6 V
SMD/SMT
8 bit
- 40 C
+ 85 C
EFM8BB1
Reel, Cut Tape, MouseReel
8-bit Microcontrollers - MCU 8051 25 MHz 2 kB flash 0.25 kB RAM 8-bit Sleepy Bee MCU
+2 images
EFM8SB10F2G-A-QFN20
Silicon Labs
1:
$1.12
10,494 In Stock
Mouser Part No 634-8SB10F2GAQF20
Silicon Labs
8-bit Microcontrollers - MCU 8051 25 MHz 2 kB flash 0.25 kB RAM 8-bit Sleepy Bee MCU
10,494 In Stock
Alternative Packaging
1
$1.12
10
$0.955
25
$0.888
100
$0.792
250
View
250
$0.727
500
$0.701
1,000
$0.634
4,200
$0.611
Buy
Min.: 1 Mult.: 1
Details
CIP-51 8051
2 kB
256 B
QFN-20
25 MHz
12 bit
16 I/O
1.8 V
3.6 V
SMD/SMT
8 bit
- 40 C
+ 85 C
Tube
8-bit Microcontrollers - MCU 8051 25 MHz 2 kB flash 0.25 kB RAM 8-bit Sleepy Bee MCU
+2 images
EFM8SB10F2G-A-QFN20R
Silicon Labs
1:
$1.12
2,748 In Stock
Mouser Part No 634-8SB10F2GAQF20R
Silicon Labs
8-bit Microcontrollers - MCU 8051 25 MHz 2 kB flash 0.25 kB RAM 8-bit Sleepy Bee MCU
2,748 In Stock
Alternative Packaging
1
$1.12
10
$0.955
25
$0.888
100
$0.792
1,500
$0.628
3,000
View
250
$0.737
500
$0.701
1,000
$0.628
3,000
$0.627
7,500
$0.592
Buy
Min.: 1 Mult.: 1
Details
CIP-51 8051
2 kB
256 B
QFN-20
25 MHz
12 bit
16 I/O
1.8 V
3.6 V
SMD/SMT
8 bit
- 40 C
+ 85 C
Reel, Cut Tape, MouseReel
8-bit Microcontrollers - MCU 8051 25 MHz 8 kB flash 0.5 kB RAM 8-bit Sleepy Bee MCU
+2 images
EFM8SB10F8G-A-QFN20R
Silicon Labs
1:
$1.40
12,170 In Stock
Mouser Part No 634-8SB10F8GAQF20R
Silicon Labs
8-bit Microcontrollers - MCU 8051 25 MHz 8 kB flash 0.5 kB RAM 8-bit Sleepy Bee MCU
12,170 In Stock
Alternative Packaging
1
$1.40
10
$1.19
25
$1.11
100
$0.983
1,500
$0.785
3,000
View
250
$0.916
500
$0.873
1,000
$0.785
3,000
$0.752
7,500
$0.742
Buy
Min.: 1 Mult.: 1
Details
CIP-51 8051
8 kB
512 B
QFN-20
25 MHz
12 bit
16 I/O
1.8 V
3.6 V
SMD/SMT
8 bit
- 40 C
+ 85 C
Reel, Cut Tape, MouseReel
8-bit Microcontrollers - MCU 8051 25 MHz 8 kB flash 0.5 kB RAM 8-bit Sleepy Bee MCU
EFM8SB10F8G-A-QFN24
Silicon Labs
1:
$1.52
1,853 In Stock
Mouser Part No 634-8SB10F8GAQF24
Silicon Labs
8-bit Microcontrollers - MCU 8051 25 MHz 8 kB flash 0.5 kB RAM 8-bit Sleepy Bee MCU
1,853 In Stock
Alternative Packaging
1
$1.52
10
$1.29
25
$1.07
100
$1.02
250
View
250
$0.984
500
$0.938
1,000
$0.903
1,911
$0.856
5,733
$0.829
Buy
Min.: 1 Mult.: 1
Details
CIP-51 8051
8 kB
512 B
QFN-24
25 MHz
12 bit
17 I/O
1.8 V
3.6 V
SMD/SMT
8 bit
- 40 C
+ 85 C
Tube
8-bit Microcontrollers - MCU 8051 25 MHz 8 kB flash 0.5 kB RAM 8-bit Sleepy Bee MCU
EFM8SB10F8G-A-QFN24R
Silicon Labs
1:
$1.52
1,801 In Stock
Mouser Part No 634-8SB10F8GAQF24R
Silicon Labs
8-bit Microcontrollers - MCU 8051 25 MHz 8 kB flash 0.5 kB RAM 8-bit Sleepy Bee MCU
1,801 In Stock
Alternative Packaging
1
$1.52
10
$1.29
25
$1.19
100
$1.07
1,500
$0.799
3,000
View
250
$0.99
500
$0.943
1,000
$0.827
3,000
$0.788
Buy
Min.: 1 Mult.: 1
Details
CIP-51 8051
8 kB
512 B
25 MHz
12 bit
17 I/O
1.8 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-QFN32
Silicon Labs
1:
$1.54
4,144 In Stock
Mouser Part No 634-EF8BB31F16GDQN32
Silicon Labs
8-bit Microcontrollers - MCU 8051 50 MHz 16 kB flash 2.25 kB RAM 8-bit Busy Bee MCU
4,144 In Stock
Alternative Packaging
1
$1.54
10
$1.30
25
$1.21
100
$1.08
250
View
250
$0.959
500
$0.917
1,000
$0.896
2,450
$0.863
4,900
$0.839
Buy
Min.: 1 Mult.: 1
Details
CIP-51 8051
16 kB
2.3 kB
QFN-32
50 MHz
10 bit, 12 bit
29 I/O
2.2 V
3.6 V
SMD/SMT
8 bit
- 40 C
+ 85 C
Tray
8-bit Microcontrollers - MCU 8051 50 MHz 64 kB flash 4.25 kB RAM 8-bit Busy Bee MCU
+1 image
EFM8BB31F64G-D-QFN24R
Silicon Labs
1:
$3.68
3,390 In Stock
Mouser Part No 634-EF8BB31F64GDF24R
Silicon Labs
8-bit Microcontrollers - MCU 8051 50 MHz 64 kB flash 4.25 kB RAM 8-bit Busy Bee MCU
3,390 In Stock
Alternative Packaging
1
$3.68
10
$2.49
25
$2.31
100
$2.01
1,500
$1.39
3,000
View
250
$1.88
500
$1.65
1,000
$1.39
3,000
$1.29
Buy
Min.: 1 Mult.: 1
Details
CIP-51 8051
64 kB
4.35 kB
QFN-24
50 MHz
10 bit, 12 bit
20 I/O
2.2 V
3.6 V
SMD/SMT
8 bit
- 40 C
+ 85 C
Reel, Cut Tape, MouseReel
8-bit Microcontrollers - MCU 8051 50 MHz 64 kB flash 4.25 kB RAM 8-bit Busy Bee MCU
EFM8BB31F64G-D-QFN32
Silicon Labs
1:
$2.30
8,556 In Stock
Mouser Part No 634-EF8BB31F64GDQN32
Silicon Labs
8-bit Microcontrollers - MCU 8051 50 MHz 64 kB flash 4.25 kB RAM 8-bit Busy Bee MCU
8,556 In Stock
Alternative Packaging
1
$2.30
10
$1.93
25
$1.79
100
$1.61
250
View
250
$1.44
500
$1.38
1,000
$1.35
2,450
$1.30
4,900
$1.26
Buy
Min.: 1 Mult.: 1
Details
CIP-51 8051
64 kB
4.35 kB
QFN-32
50 MHz
10 bit, 12 bit
29 I/O
2.2 V
3.6 V
SMD/SMT
8 bit
- 40 C
+ 85 C
Tray
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:
$2.65
6,433 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
6,433 In Stock
Alternative Packaging
1
$2.65
10
$2.22
25
$2.06
500
$1.90
1,000
View
1,000
$1.59
2,500
$1.51
5,000
$1.47
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 64 kB flash 4.25 kB RAM 8-bit Busy Bee MCU
+1 image
EFM8BB31F64I-D-4QFN24R
Silicon Labs
1:
$4.04
1,456 In Stock
Mouser Part No 634-EF8BB31F64ID424R
Silicon Labs
8-bit Microcontrollers - MCU 8051 50 MHz 64 kB flash 4.25 kB RAM 8-bit Busy Bee MCU
1,456 In Stock
Alternative Packaging
1
$4.04
10
$2.68
25
$2.44
100
$2.07
1,500
$1.52
3,000
View
250
$1.97
500
$1.77
1,000
$1.52
3,000
$1.44
Buy
Min.: 1 Mult.: 1
Details
CIP-51 8051
64 kB
4.35 kB
QFN-24
50 MHz
10 bit, 12 bit
20 I/O
2.2 V
3.6 V
SMD/SMT
8 bit
- 40 C
+ 125 C
Reel, Cut Tape, MouseReel
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
CIP-51 8051
32 kB
4.25 kB
QFN-32
25 MHz
10 bit
24 I/O
1.8 V
3.6 V
SMD/SMT
8 bit
- 40 C
+ 85 C
EFM8SB
Tube
8-bit Microcontrollers - MCU 8051 48 MHz 64 kB flash 4 kB RAM 8-bit Universal Bee MCU
+1 image
EFM8UB20F64G-B-QFN32R
Silicon Labs
1:
$3.21
1,663 In Stock
Mouser Part No 634-EFM8UB64GBQFN32R
Silicon Labs
8-bit Microcontrollers - MCU 8051 48 MHz 64 kB flash 4 kB RAM 8-bit Universal Bee MCU
1,663 In Stock
Alternative Packaging
1
$3.21
10
$2.68
25
$2.49
100
$2.23
250
View
1,500
$1.73
250
$2.10
500
$2.01
1,000
$1.76
1,500
$1.73
Buy
Min.: 1 Mult.: 1
Details
CIP-51 8051
64 kB
4.25 kB
QFN-32
48 MHz
10 bit
25 I/O
3.3 V
3.3 V
SMD/SMT
8 bit
- 40 C
+ 85 C
EFM8UB2
Reel, Cut Tape
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
CIP-51 8051
32 kB
2.25 kB
QFP-32
48 MHz
10 bit
25 I/O
3.3 V
3.3 V
SMD/SMT
8 bit
- 40 C
+ 85 C
EFM8UB2
Tray
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
CIP-51 8051
64 kB
4.25 kB
QFP-32
48 MHz
10 bit
25 I/O
3.3 V
3.3 V
SMD/SMT
8 bit
- 40 C
+ 85 C
EFM8UB2
Tray
8-bit Microcontrollers - MCU 8051 75 MHz 32 kB flash 2.25 kB RAM 8-bit Laser Bee MCU
EFM8LB12F32E-C-QFN24R
Silicon Labs
1:
$4.08
980 In Stock
Mouser Part No 634-LB12F32ECQFN24R
Silicon Labs
8-bit Microcontrollers - MCU 8051 75 MHz 32 kB flash 2.25 kB RAM 8-bit Laser Bee MCU
980 In Stock
Alternative Packaging
1
$4.08
10
$2.70
25
$2.46
100
$2.09
1,500
$1.41
3,000
View
250
$1.99
500
$1.78
1,000
$1.47
3,000
$1.39
Buy
Min.: 1 Mult.: 1
Details
CIP-51 8051
32 kB
2.25 kB
QFN-24
72 MHz
10 bit/12 bit/14 bit
20 I/O
2.2 V
3.6 V
SMD/SMT
8 bit
- 40 C
+ 105 C
EFM8LB1
Reel, Cut Tape, MouseReel
8-bit Microcontrollers - MCU 8051 75 MHz 64 kB flash 4.25 kB RAM 8-bit Laser Bee MCU
EFM8LB12F64E-C-QFN24R
Silicon Labs
1:
$2.89
5,614 In Stock
Mouser Part No 634-LB12F64ECQFN24R
Silicon Labs
8-bit Microcontrollers - MCU 8051 75 MHz 64 kB flash 4.25 kB RAM 8-bit Laser Bee MCU
5,614 In Stock
Alternative Packaging
1
$2.89
10
$2.42
25
$2.24
100
$2.01
250
View
1,500
$1.55
250
$1.89
500
$1.80
1,000
$1.55
1,500
$1.55
Buy
Min.: 1 Mult.: 1
Details
CIP-51 8051
64 kB
4.25 kB
QFN-24
72 MHz
10 bit/12 bit/14 bit
20 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 64 kB flash 4.25 kB RAM 8-bit Laser Bee MCU
EFM8LB12F64E-C-QFN32
Silicon Labs
1:
$2.54
809 In Stock
Mouser Part No 634-LB12F64ECQFN32
Silicon Labs
8-bit Microcontrollers - MCU 8051 75 MHz 64 kB flash 4.25 kB RAM 8-bit Laser Bee MCU
809 In Stock
Alternative Packaging
1
$2.54
10
$2.13
25
$1.98
100
$1.77
250
View
250
$1.62
2,450
$1.61
Buy
Min.: 1 Mult.: 1
Details
CIP-51 8051
64 kB
4.25 kB
QFN-32
72 MHz
10 bit/12 bit/14 bit
29 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-QFP32
Silicon Labs
1:
$3.36
2,943 In Stock
3,750 Expected 20/03/2026
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
2,943 In Stock
3,750 Expected 20/03/2026
Alternative Packaging
1
$3.36
10
$2.80
25
$2.60
100
$2.34
250
View
250
$2.19
500
$2.10
1,000
$2.02
2,500
$1.93
5,000
$1.88
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
EFM8LB12F64ES1-C-QFN24
Silicon Labs
1:
$2.45
1,274 In Stock
Mouser Part No 634-LB12F64ES1CQFN24
Silicon Labs
8-bit Microcontrollers - MCU
1,274 In Stock
Alternative Packaging
1
$2.45
10
$2.05
25
$1.91
100
$1.69
250
View
250
$1.57
500
$1.55
Buy
Min.: 1 Mult.: 1
Details
CIP-51 8051
64 kB
4.25 kB
QFN-24
72 MHz
10 bit/12 bit/14 bit
20 I/O
2.2 V
3.6 V
SMD/SMT
8 bit
- 40 C
+ 105 C
EFM8LB1
Tube
8-bit Microcontrollers - MCU 8051 50 MHz 16 kB flash 2.25 kB RAM 8-bit Busy Bee MCU
+1 image
EFM8BB21F16I-C-QSOP24
Silicon Labs
1:
$1.61
4,982 In Stock
End of Life
Mouser Part No 634-8BB21F16ICQSOP24
End of Life
Silicon Labs
8-bit Microcontrollers - MCU 8051 50 MHz 16 kB flash 2.25 kB RAM 8-bit Busy Bee MCU
4,982 In Stock
Alternative Packaging
1
$1.61
10
$1.36
100
$1.31
250
$1.27
500
View
500
$1.17
1,176
$0.996
2,352
$0.919
5,880
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Min.: 1 Mult.: 1
Details
CIP-51 8051
16 kB
2.3 kB
QSOP-24
50 MHz
12 bit
21 I/O
2.2 V
3.6 V
SMD/SMT
8 bit
- 40 C
+ 125 C
EFM8BB2
Tube
Israel