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:
¥576.4
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
¥576.4
10
¥440.2
25
¥405.3
100
¥352.1
250
View
250
¥333.9
500
¥308.9
1,000
¥274.1
2,500
¥264.1
5,000
¥259.1
Buy
Min.: 1
Mult.: 1
Details
SMD/SMT
QFP-32
CIP-51 8051
64 kB
8 bit
10 bit, 12 bit
50 MHz
28 I/O
4.35 kB
2.2 V
3.6 V
- 40 C
+ 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:
¥594.6
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
¥594.6
10
¥392
25
¥362.1
100
¥315.6
250
View
250
¥295.7
500
¥259.1
1,000
¥220.9
2,500
¥214.3
5,000
¥207.6
Buy
Min.: 1
Mult.: 1
Details
SMD/SMT
QFP-32
CIP-51 8051
16 kB
8 bit
10 bit, 12 bit
50 MHz
28 I/O
2.3 kB
2.2 V
3.6 V
- 40 C
+ 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:
¥631.2
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
¥631.2
10
¥426.9
25
¥395.3
100
¥343.8
500
¥272.4
1,000
View
250
¥322.2
1,000
¥237.5
2,500
¥234.2
5,000
¥225.9
Buy
Min.: 1
Mult.: 1
Reel :
500
Details
SMD/SMT
QFP-32
CIP-51 8051
32 kB
8 bit
10 bit, 12 bit
50 MHz
28 I/O
2.3 kB
2.2 V
3.6 V
- 40 C
+ 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-QFP32R
Silicon Labs
1:
¥720.9
9,677 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
9,677 In Stock
Alternative Packaging
1
¥720.9
10
¥476.7
25
¥433.5
100
¥368.7
500
¥313.9
1,000
View
250
¥350.5
1,000
¥308.9
Buy
Min.: 1
Mult.: 1
Reel :
500
Details
SMD/SMT
QFP-32
CIP-51 8051
64 kB
8 bit
10 bit, 12 bit
50 MHz
28 I/O
4.35 kB
2.2 V
3.6 V
- 40 C
+ 85 C
Reel, Cut Tape
ARM Microcontrollers - MCU MCU RA2 ARM CM23 48MHz 256K/32K QFP32
R7FA2A1AB3CFJ#AA0
Renesas Electronics
1:
¥978.3
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
¥978.3
10
¥749.1
25
¥691
100
¥627.9
250
View
250
¥596.3
1,000
¥563.1
2,500
¥548.1
Buy
Min.: 1
Mult.: 1
Details
SMD/SMT
QFP-32
ARM Cortex M23
256 kB
32 bit
16 bit, 24 bit
48 MHz
18 I/O
32 kB
1.6 V
5.5 V
- 40 C
+ 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:
¥322.2
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
¥322.2
10
¥272.4
25
¥252.5
100
¥225.9
250
View
250
¥210.9
500
¥206
1,000
¥202.6
2,500
¥197.7
5,000
¥192.7
Buy
Min.: 1
Mult.: 1
Details
SMD/SMT
QFP-32
CIP-51 8051
16 kB
8 bit
10 bit, 12 bit
50 MHz
28 I/O
2.3 kB
2.2 V
3.6 V
- 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:
¥636.2
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
¥636.2
10
¥430.2
25
¥398.6
100
¥345.5
250
View
250
¥323.9
500
¥284
1,000
¥244.2
2,500
¥237.5
5,000
¥230.9
Buy
Min.: 1
Mult.: 1
Details
SMD/SMT
QFP-32
CIP-51 8051
16 kB
8 bit
10 bit/12 bit/14 bit
72 MHz
28 I/O
1.25 kB
2.2 V
3.6 V
- 40 C
+ 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:
¥669.4
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
¥669.4
10
¥443.5
25
¥403.6
100
¥342.2
250
View
250
¥325.6
500
¥292.3
1,000
¥260.8
2,500
¥252.5
5,000
¥247.5
Buy
Min.: 1
Mult.: 1
Details
SMD/SMT
QFP-32
CIP-51 8051
16 kB
8 bit
10 bit/12 bit/14 bit
72 MHz
28 I/O
1.25 kB
2.2 V
3.6 V
- 40 C
+ 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:
¥666.1
237 In Stock
500 Expected 1/29/2027
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
237 In Stock
500 Expected 1/29/2027
Alternative Packaging
1
¥666.1
10
¥543.1
25
¥500
100
¥445.1
500
¥382
1,000
View
250
¥416.9
1,000
¥355.5
2,500
¥343.8
5,000
¥340.5
Buy
Min.: 1
Mult.: 1
Reel :
500
Details
SMD/SMT
QFP-32
CIP-51 8051
64 kB
8 bit
10 bit/12 bit/14 bit
72 MHz
28 I/O
4.25 kB
2.2 V
3.6 V
- 40 C
+ 105 C
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:
¥785.7
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
¥785.7
10
¥518.2
25
¥473.4
100
¥402
250
View
250
¥380.4
500
¥342.2
1,000
¥333.9
Buy
Min.: 1
Mult.: 1
Details
SMD/SMT
QFP-32
CIP-51 8051
64 kB
8 bit
10 bit, 12 bit
50 MHz
28 I/O
4.35 kB
2.2 V
3.6 V
- 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:
¥612.9
9,409 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
9,409 On Order
View Dates
Alternative Packaging
On Order:
4,409 Expected 8/14/2026
5,000 Expected 8/18/2026
Factory Lead-Time:
20 Weeks
1
¥612.9
10
¥511.6
25
¥475
100
¥426.9
250
View
250
¥400.3
500
¥383.7
1,000
¥360.4
2,500
¥345.5
5,000
¥342.2
Buy
Min.: 1
Mult.: 1
Details
SMD/SMT
QFP-32
CIP-51 8051
64 kB
8 bit
10 bit/12 bit/14 bit
72 MHz
28 I/O
4.25 kB
2.2 V
3.6 V
- 40 C
+ 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:
¥863.7
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
¥863.7
10
¥571.4
25
¥519.9
100
¥441.8
250
View
250
¥420.2
500
¥377
1,000
¥335.5
2,500
¥327.2
5,000
¥323.9
Buy
Min.: 1
Mult.: 1
Details
SMD/SMT
QFP-32
CIP-51 8051
32 kB
8 bit
10 bit/12 bit/14 bit
72 MHz
28 I/O
2.25 kB
2.2 V
3.6 V
- 40 C
+ 105 C
Tray
8-bit Microcontrollers - MCU USB, 64kB/4352B RAM, 10b Diff-ADC
+1 image
EFM8UB20F64G-A-QFP32R
Silicon Labs
500:
¥274.1
Non-Stocked
Mouser Part #
634-8UB20F64GAQFP32R
Silicon Labs
8-bit Microcontrollers - MCU USB, 64kB/4352B RAM, 10b Diff-ADC
Non-Stocked
500
¥274.1
1,000
¥245.8
2,500
¥237.5
5,000
¥234.2
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:
¥561.4
Non-Stocked 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
Non-Stocked Lead-Time 16 Weeks
Alternative Packaging
1
¥561.4
10
¥370.4
25
¥342.2
100
¥297.3
500
¥222.6
1,000
View
250
¥279
1,000
¥210.9
2,500
¥207.6
5,000
¥204.3
Buy
Min.: 1
Mult.: 1
Reel :
500
Details
SMD/SMT
QFP-32
CIP-51 8051
16 kB
8 bit
10 bit, 12 bit
50 MHz
28 I/O
2.3 kB
2.2 V
3.6 V
- 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:
¥596.3
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
¥596.3
10
¥403.6
25
¥373.7
100
¥323.9
250
View
250
¥304
500
¥265.8
1,000
¥232.5
2,500
¥227.6
5,000
¥224.2
Buy
Min.: 1
Mult.: 1
Details
SMD/SMT
QFP-32
CIP-51 8051
32 kB
8 bit
10 bit, 12 bit
50 MHz
28 I/O
2.3 kB
2.2 V
3.6 V
- 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:
¥636.2
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
¥636.2
10
¥430.2
25
¥398.6
100
¥345.5
500
¥260.8
1,000
View
250
¥323.9
1,000
¥245.8
2,500
¥244.2
5,000
¥240.8
Buy
Min.: 1
Mult.: 1
Reel :
500
Details
SMD/SMT
QFP-32
CIP-51 8051
16 kB
8 bit
10 bit/12 bit/14 bit
72 MHz
28 I/O
1.25 kB
2.2 V
3.6 V
- 40 C
+ 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:
¥671
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
¥671
10
¥445.1
25
¥405.3
100
¥343.8
500
¥280.7
1,000
View
250
¥327.2
1,000
¥264.1
2,500
¥260.8
5,000
¥257.5
Buy
Min.: 1
Mult.: 1
Reel :
500
Details
SMD/SMT
QFP-32
CIP-51 8051
16 kB
8 bit
10 bit/12 bit/14 bit
72 MHz
28 I/O
1.25 kB
2.2 V
3.6 V
- 40 C
+ 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:
¥299
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
¥299
2,500
¥294
5,000
¥290.7
Buy
Min.: 1,250
Mult.: 1,250
Details
SMD/SMT
QFP-32
CIP-51 8051
32 kB
8 bit
10 bit/12 bit/14 bit
72 MHz
28 I/O
2.25 kB
2.2 V
3.6 V
- 40 C
+ 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:
¥317.3
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
¥317.3
1,000
¥299
2,500
¥294
5,000
¥290.7
Buy
Min.: 500
Mult.: 500
Reel :
500
Details
SMD/SMT
QFP-32
CIP-51 8051
32 kB
8 bit
10 bit/12 bit/14 bit
72 MHz
28 I/O
2.25 kB
2.2 V
3.6 V
- 40 C
+ 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:
¥342.2
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
¥342.2
1,000
¥322.2
2,500
¥317.3
5,000
¥313.9
Buy
Min.: 500
Mult.: 500
Reel :
500
Details
SMD/SMT
QFP-32
CIP-51 8051
32 kB
8 bit
10 bit/12 bit/14 bit
72 MHz
28 I/O
2.25 kB
2.2 V
3.6 V
- 40 C
+ 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:
¥528.2
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
¥528.2
10
¥343.8
25
¥315.6
100
¥270.7
250
¥254.1
500
¥214.3
Buy
Min.: 1
Mult.: 1
Reel :
500
Details
SMD/SMT
QFP-32
CIP-51 8051
16 kB
8 bit
10 bit, 12 bit
50 MHz
28 I/O
2.3 kB
2.2 V
3.6 V
- 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:
¥644.5
Non-Stocked Lead-Time 30 Weeks
End of Life
Mouser Part #
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
¥644.5
10
¥425.2
25
¥388.7
100
¥328.9
250
¥312.3
500
¥275.7
Buy
Min.: 1
Mult.: 1
Reel :
500
Details
SMD/SMT
QFP-32
CIP-51 8051
32 kB
8 bit
10 bit, 12 bit
50 MHz
28 I/O
2.3 kB
2.2 V
3.6 V
- 40 C
+ 125 C
Reel, Cut Tape