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:
$4.35
9,667 In Stock
Mouser Part #
634-EF8BB31F64GDP32R
Silicon Labs
8-bit Microcontrollers - MCU 8051 50 MHz 64 kB flash 4.25 kB RAM 8-bit Busy Bee MCU
9,667 In Stock
Alternative Packaging
1
$4.35
10
$2.88
25
$2.62
100
$2.23
500
$1.71
1,000
View
250
$2.12
1,000
$1.58
2,500
$1.56
5,000
$1.54
Buy
Min.: 1
Mult.: 1
Reel :
500
Details
SMD/SMT
QFP-32
CIP-51 8051
8 bit
50 MHz
64 kB
4.35 kB
10 bit, 12 bit
28 I/O
2.2 V
3.6 V
+ 85 C
Reel, Cut Tape
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:
$3.60
5,975 In Stock
Mouser Part #
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
$3.60
10
$2.70
25
$2.41
100
$2.16
250
View
250
$2.04
500
$1.89
1,000
$1.57
2,500
$1.54
5,000
$1.52
Buy
Min.: 1
Mult.: 1
Details
SMD/SMT
QFP-32
CIP-51 8051
8 bit
50 MHz
64 kB
4.35 kB
10 bit, 12 bit
28 I/O
2.2 V
3.6 V
+ 85 C
Tray
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:
$3.58
16 In Stock
Mouser Part #
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
$3.58
10
$2.36
25
$2.18
100
$1.90
250
View
250
$1.78
500
$1.56
1,000
$1.33
2,500
$1.29
5,000
$1.25
Buy
Min.: 1
Mult.: 1
Details
SMD/SMT
QFP-32
CIP-51 8051
8 bit
50 MHz
16 kB
2.3 kB
10 bit, 12 bit
28 I/O
2.2 V
3.6 V
+ 125 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:
$3.60
502 In Stock
Mouser Part #
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
$3.60
10
$2.44
25
$2.26
100
$1.96
500
$1.60
1,000
View
250
$1.84
1,000
$1.42
2,500
$1.40
5,000
$1.38
Buy
Min.: 1
Mult.: 1
Reel :
500
Details
SMD/SMT
QFP-32
CIP-51 8051
8 bit
50 MHz
32 kB
2.3 kB
10 bit, 12 bit
28 I/O
2.2 V
3.6 V
+ 85 C
Reel, Cut Tape
ARM Microcontrollers - MCU MCU RA2 ARM CM23 48MHz 256K/32K QFP32
R7FA2A1AB3CFJ#AA0
Renesas Electronics
1:
$6.11
935 In Stock
Mouser Part #
968-7FA2A1AB3CFJ#AA0
Renesas Electronics
ARM Microcontrollers - MCU MCU RA2 ARM CM23 48MHz 256K/32K QFP32
935 In Stock
Alternative Packaging
1
$6.11
10
$4.68
25
$4.11
100
$3.93
250
View
250
$3.73
500
$3.62
1,000
$3.46
2,500
$3.45
Buy
Min.: 1
Mult.: 1
Details
SMD/SMT
QFP-32
ARM Cortex M23
32 bit
48 MHz
256 kB
32 kB
16 bit, 24 bit
18 I/O
1.6 V
5.5 V
+ 105 C
Tray
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:
$2.10
1,070 In Stock
End of Life
Mouser Part #
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
$2.10
10
$1.77
25
$1.64
100
$1.47
250
View
250
$1.37
500
$1.31
1,000
$1.19
2,500
$1.16
5,000
$1.13
Buy
Min.: 1
Mult.: 1
Details
SMD/SMT
QFP-32
CIP-51 8051
8 bit
50 MHz
16 kB
2.3 kB
10 bit, 12 bit
28 I/O
2.2 V
3.6 V
+ 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:
$3.83
134 In Stock
Mouser Part #
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
$3.83
10
$2.59
25
$2.40
100
$2.08
250
View
250
$1.95
500
$1.71
1,000
$1.47
2,500
$1.43
5,000
$1.39
Buy
Min.: 1
Mult.: 1
Details
SMD/SMT
QFP-32
CIP-51 8051
8 bit
72 MHz
16 kB
1.25 kB
10 bit/12 bit/14 bit
28 I/O
2.2 V
3.6 V
+ 105 C
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:
$4.03
36 In Stock
Mouser Part #
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
$4.03
10
$2.67
25
$2.43
100
$2.06
250
View
250
$1.96
500
$1.76
1,000
$1.57
2,500
$1.52
5,000
$1.49
Buy
Min.: 1
Mult.: 1
Details
SMD/SMT
QFP-32
CIP-51 8051
8 bit
72 MHz
16 kB
1.25 kB
10 bit/12 bit/14 bit
28 I/O
2.2 V
3.6 V
+ 105 C
Tray
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:
$4.73
5 In Stock
End of Life
Mouser Part #
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
$4.73
10
$3.12
25
$2.85
100
$2.42
250
View
250
$2.29
500
$2.06
1,000
$2.01
Buy
Min.: 1
Mult.: 1
Details
SMD/SMT
QFP-32
CIP-51 8051
8 bit
50 MHz
64 kB
4.35 kB
10 bit, 12 bit
28 I/O
2.2 V
3.6 V
+ 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:
$3.69
11,235 On Order
Mouser Part #
634-LB12F64ECQFP32
Silicon Labs
8-bit Microcontrollers - MCU 8051 75 MHz 64 kB flash 4.25 kB RAM 8-bit Laser Bee MCU
11,235 On Order
View Dates
Alternative Packaging
On Order:
4,985 Expected 8/27/2026
6,250 Expected 3/12/2027
Factory Lead-Time:
20 Weeks
1
$3.69
10
$3.08
25
$2.86
100
$2.57
250
View
250
$2.41
500
$2.31
1,000
$2.17
2,500
$2.08
5,000
$2.06
Buy
Min.: 1
Mult.: 1
Details
SMD/SMT
QFP-32
CIP-51 8051
8 bit
72 MHz
64 kB
4.25 kB
10 bit/12 bit/14 bit
28 I/O
2.2 V
3.6 V
+ 105 C
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:
$5.20
1,043 Expected 10/16/2026
Mouser Part #
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 10/16/2026
Alternative Packaging
1
$5.20
10
$3.44
25
$3.13
100
$2.66
250
View
250
$2.53
500
$2.27
1,000
$2.02
2,500
$1.97
5,000
$1.95
Buy
Min.: 1
Mult.: 1
Details
SMD/SMT
QFP-32
CIP-51 8051
8 bit
72 MHz
32 kB
2.25 kB
10 bit/12 bit/14 bit
28 I/O
2.2 V
3.6 V
+ 105 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-QFP32R
Silicon Labs
1:
$4.25
500 Expected 10/23/2026
Mouser Part #
634-LB12F64ECQFP32R
Silicon Labs
8-bit Microcontrollers - MCU 8051 75 MHz 64 kB flash 4.25 kB RAM 8-bit Laser Bee MCU
500 Expected 10/23/2026
Alternative Packaging
1
$4.25
10
$3.47
25
$3.01
100
$2.84
500
$2.48
1,000
View
250
$2.78
1,000
$2.25
2,500
$2.22
5,000
$2.20
Buy
Min.: 1
Mult.: 1
Reel :
500
Details
SMD/SMT
QFP-32
CIP-51 8051
8 bit
72 MHz
64 kB
4.25 kB
10 bit/12 bit/14 bit
28 I/O
2.2 V
3.6 V
+ 105 C
Reel, Cut Tape
8-bit Microcontrollers - MCU USB, 64kB/4352B RAM, 10b Diff-ADC
+1 image
EFM8UB20F64G-A-QFP32R
Silicon Labs
500:
$1.65
Non-Stocked
Mouser Part #
634-8UB20F64GAQFP32R
Silicon Labs
8-bit Microcontrollers - MCU USB, 64kB/4352B RAM, 10b Diff-ADC
Non-Stocked
500
$1.65
1,000
$1.48
2,500
$1.43
5,000
$1.41
Buy
Min.: 500
Mult.: 500
Reel :
500
Details
SMD/SMT
QFP-32
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:
$3.38
Lead-Time 16 Weeks
Mouser Part #
634-EF8BB31F16IDP32R
Silicon Labs
8-bit Microcontrollers - MCU 8051 50 MHz 16 kB flash 2.25 kB RAM 8-bit Busy Bee MCU
Lead-Time 16 Weeks
Alternative Packaging
1
$3.38
10
$2.23
25
$2.06
100
$1.79
500
$1.41
1,000
View
250
$1.68
1,000
$1.30
2,500
$1.28
5,000
$1.26
Buy
Min.: 1
Mult.: 1
Reel :
500
Details
SMD/SMT
QFP-32
CIP-51 8051
8 bit
50 MHz
16 kB
2.3 kB
10 bit, 12 bit
28 I/O
2.2 V
3.6 V
+ 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:
$3.59
Non-Stocked Lead-Time 16 Weeks
Mouser Part #
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
$3.59
10
$2.43
25
$2.25
100
$1.95
250
View
250
$1.83
500
$1.60
1,000
$1.40
2,500
$1.37
5,000
$1.35
Buy
Min.: 1
Mult.: 1
Details
SMD/SMT
QFP-32
CIP-51 8051
8 bit
50 MHz
32 kB
2.3 kB
10 bit, 12 bit
28 I/O
2.2 V
3.6 V
+ 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:
$3.83
Non-Stocked Lead-Time 20 Weeks
Mouser Part #
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
$3.83
10
$2.59
25
$2.40
100
$2.08
500
$1.57
1,000
View
250
$1.95
1,000
$1.48
2,500
$1.47
5,000
$1.45
Buy
Min.: 1
Mult.: 1
Reel :
500
Details
SMD/SMT
QFP-32
CIP-51 8051
8 bit
72 MHz
16 kB
1.25 kB
10 bit/12 bit/14 bit
28 I/O
2.2 V
3.6 V
+ 105 C
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:
$4.04
Non-Stocked Lead-Time 20 Weeks
Mouser Part #
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
$4.04
10
$2.68
25
$2.44
100
$2.07
500
$1.74
1,000
View
250
$1.97
1,000
$1.61
2,500
$1.59
5,000
$1.57
Buy
Min.: 1
Mult.: 1
Reel :
500
Details
SMD/SMT
QFP-32
CIP-51 8051
8 bit
72 MHz
16 kB
1.25 kB
10 bit/12 bit/14 bit
28 I/O
2.2 V
3.6 V
+ 105 C
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:
$1.80
Non-Stocked Lead-Time 20 Weeks
Mouser Part #
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
$1.80
2,500
$1.77
5,000
$1.75
Buy
Min.: 1,250
Mult.: 1,250
Details
SMD/SMT
QFP-32
CIP-51 8051
8 bit
72 MHz
32 kB
2.25 kB
10 bit/12 bit/14 bit
28 I/O
2.2 V
3.6 V
+ 105 C
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:
$1.95
Non-Stocked Lead-Time 20 Weeks
Mouser Part #
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
$1.95
1,000
$1.82
2,500
$1.79
5,000
$1.77
Buy
Min.: 500
Mult.: 500
Reel :
500
Details
SMD/SMT
QFP-32
CIP-51 8051
8 bit
72 MHz
32 kB
2.25 kB
10 bit/12 bit/14 bit
28 I/O
2.2 V
3.6 V
+ 105 C
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:
$2.10
Non-Stocked Lead-Time 20 Weeks
Mouser Part #
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
$2.10
1,000
$1.96
2,500
$1.93
5,000
$1.91
Buy
Min.: 500
Mult.: 500
Reel :
500
Details
SMD/SMT
QFP-32
CIP-51 8051
8 bit
72 MHz
32 kB
2.25 kB
10 bit/12 bit/14 bit
28 I/O
2.2 V
3.6 V
+ 105 C
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:
$3.19
Non-Stocked Lead-Time 30 Weeks
End of Life
Mouser Part #
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
$3.19
10
$2.08
25
$1.91
100
$1.64
250
$1.54
500
$1.31
Buy
Min.: 1
Mult.: 1
Reel :
500
Details
SMD/SMT
QFP-32
CIP-51 8051
8 bit
50 MHz
16 kB
2.3 kB
10 bit, 12 bit
28 I/O
2.2 V
3.6 V
+ 85 C
Reel, Cut Tape