8-bit Microcontrollers - MCU 8051 48 MHz 32 kB flash 2 kB RAM 8-bit Universal Bee MCU
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EFM8UB20F32G-B-QFN32R
Silicon Labs
1:
¥554.8
10,557 In Stock
Mouser Part #
634-EFM8UB32GBQFN32R
Silicon Labs
8-bit Microcontrollers - MCU 8051 48 MHz 32 kB flash 2 kB RAM 8-bit Universal Bee MCU
10,557 In Stock
Alternative Packaging
1
¥554.8
10
¥453.5
25
¥393.7
100
¥372.1
1,500
¥280.7
3,000
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500
¥330.5
1,000
¥287.4
3,000
¥274.1
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8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 16 kB flash 1.28 kB RAM 25 GPIO BB5 8-bit MCU
EFM8BB52F16G-C-TSSOP28
Silicon Labs
1:
¥199.3
8,238 In Stock
Mouser Part #
634-EFM852F16GTSOP28
Silicon Labs
8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 16 kB flash 1.28 kB RAM 25 GPIO BB5 8-bit MCU
8,238 In Stock
Alternative Packaging
1
¥199.3
10
¥171.1
25
¥149.7
100
¥122.9
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¥108.6
600
¥105.5
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¥93.7
2,600
¥85.5
5,000
¥82.9
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8-bit Microcontrollers - MCU 8051 48 MHz 32 kB flash 2 kB RAM 8-bit Universal Bee MCU
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EFM8UB20F32G-B-QFN32
Silicon Labs
1:
¥529.9
587 In Stock
Mouser Part #
634-EFM8UBF32GBQFN32
Silicon Labs
8-bit Microcontrollers - MCU 8051 48 MHz 32 kB flash 2 kB RAM 8-bit Universal Bee MCU
587 In Stock
Alternative Packaging
1
¥529.9
10
¥443.5
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¥377
100
¥358.8
500
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500
¥330.5
1,000
¥308.9
2,500
¥295.7
4,599
¥294
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8-bit Microcontrollers - MCU 8051 25 MHz 2 kB flash 0.25 kB RAM 8-bit Busy Bee MCU
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EFM8BB10F2I-A-QFN20
Silicon Labs
1:
¥159.5
3,158 In Stock
Mouser Part #
634-EFM8BB10F2IAFN20
Silicon Labs
8-bit Microcontrollers - MCU 8051 25 MHz 2 kB flash 0.25 kB RAM 8-bit Busy Bee MCU
3,158 In Stock
Alternative Packaging
1
¥159.5
10
¥136.2
25
¥119.6
100
¥111.3
250
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250
¥111.1
500
¥98.3
1,000
¥88.4
2,520
¥78.2
5,040
¥78.1
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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:
¥272.4
Lead-Time 24 Weeks
Mouser Part #
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
Lead-Time 24 Weeks
Alternative Packaging
1
¥272.4
10
¥174.4
25
¥154.8
100
¥127.4
2,500
¥80.6
5,000
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¥111.1
500
¥105.3
1,000
¥88.4
5,000
¥78.1
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8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 8 kB flash 1.28 kB RAM 16 GPIO BB5 8-bit MCU
EFM8BB51F8G-C-QFN20R
Silicon Labs
1:
¥162.8
9,875 In Stock
Mouser Part #
634-EFM851F8GCQFN20R
Silicon Labs
8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 8 kB flash 1.28 kB RAM 16 GPIO BB5 8-bit MCU
9,875 In Stock
Alternative Packaging
1
¥162.8
10
¥138.9
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¥122.1
100
¥115.3
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¥73.1
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¥108.5
500
¥95.2
1,000
¥85.5
5,000
¥66.9
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8-bit Microcontrollers - MCU 8051 25 MHz 64 kB flash 4 kB RAM 8-bit Sleepy Bee MCU
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EFM8SB20F64G-B-QFN24R
Silicon Labs
1:
¥495
1,500 In Stock
Mouser Part #
634-EFM8SB64GBQFN24R
Silicon Labs
8-bit Microcontrollers - MCU 8051 25 MHz 64 kB flash 4 kB RAM 8-bit Sleepy Bee MCU
1,500 In Stock
Alternative Packaging
1
¥495
10
¥405.3
25
¥350.5
100
¥330.5
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¥247.5
3,000
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500
¥294
1,000
¥254.1
3,000
¥242.5
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8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 8 kB flash 1.28 kB RAM 16 GPIO BB5 8-bit MCU
EFM8BB51F8I-C-TSSOP20
Silicon Labs
1:
¥264.1
166 In Stock
Mouser Part #
634-EFM851F8ICTSOP20
Silicon Labs
8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 8 kB flash 1.28 kB RAM 16 GPIO BB5 8-bit MCU
166 In Stock
Alternative Packaging
1
¥264.1
10
¥169.4
25
¥150
100
¥123.6
200
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200
¥106
600
¥103.3
1,000
¥95.5
2,600
¥89.9
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¥87
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8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 16 kB flash 1.28 kB RAM 25 GPIO BB5 8-bit MCU
EFM8BB52F16I-C-TSSOP28R
Silicon Labs
1:
¥332.2
2,435 In Stock
Mouser Part #
634-EFM852F16ITOP28R
Silicon Labs
8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 16 kB flash 1.28 kB RAM 25 GPIO BB5 8-bit MCU
2,435 In Stock
Alternative Packaging
1
¥332.2
10
¥212.6
25
¥189.4
100
¥155.3
2,500
¥97.3
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¥135.5
500
¥128.4
1,000
¥111.3
5,000
¥97.2
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8-bit Microcontrollers - MCU 8051 25 MHz 32 kB flash 4 kB RAM 8-bit Sleepy Bee MCU
+1 image
EFM8SB20F32G-B-QFN24R
Silicon Labs
1:
¥601.3
865 In Stock
Mouser Part #
634-EFM8SB32GBQFN24R
Silicon Labs
8-bit Microcontrollers - MCU 8051 25 MHz 32 kB flash 4 kB RAM 8-bit Sleepy Bee MCU
865 In Stock
Alternative Packaging
1
¥601.3
25
¥367.1
100
¥317.3
250
¥297.3
1,500
¥209.3
3,000
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500
¥262.4
1,000
¥215.9
3,000
¥206
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8-bit Microcontrollers - MCU 8051 25 MHz 64 kB flash 4 kB RAM 8-bit Sleepy Bee MCU
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EFM8SB20F64G-B-QFN24
Silicon Labs
1:
¥471.7
2,683 In Stock
Mouser Part #
634-EFM8SBF64GBQFN24
Silicon Labs
8-bit Microcontrollers - MCU 8051 25 MHz 64 kB flash 4 kB RAM 8-bit Sleepy Bee MCU
2,683 In Stock
Alternative Packaging
1
¥471.7
10
¥395.3
25
¥330.5
100
¥313.9
500
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500
¥292.3
1,000
¥257.5
1,911
¥249.2
5,733
¥244.2
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8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 32 kB flash 2.304 kB RAM 29 GPIO BB5 8-bit MCU
EFM8BB52F32I-C-QFN32R
Silicon Labs
1:
¥280.7
11,530 In Stock
Mouser Part #
634-EFM852F32IQFN32R
Silicon Labs
8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 32 kB flash 2.304 kB RAM 29 GPIO BB5 8-bit MCU
11,530 In Stock
Alternative Packaging
1
¥280.7
10
¥179.4
25
¥159.5
100
¥131.2
2,500
¥83.1
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¥114.4
500
¥108.5
1,000
¥91.2
5,000
¥80.4
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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:
¥672.7
163 In Stock
Mouser Part #
634-EFM8UB64GBQFN32R
Silicon Labs
8-bit Microcontrollers - MCU 8051 48 MHz 64 kB flash 4 kB RAM 8-bit Universal Bee MCU
163 In Stock
Alternative Packaging
1
¥672.7
10
¥549.8
25
¥476.7
100
¥450.1
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¥348.8
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¥440.2
500
¥393.7
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¥355.5
3,000
¥345.5
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8-bit Microcontrollers - MCU 8051 25 MHz 64 kB flash 4 kB RAM 8-bit Sleepy Bee MCU
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EFM8SB20F64G-B-QFN32
Silicon Labs
1:
¥747.5
1,161 In Stock
End of Life
Mouser Part #
634-EFM8SBF64GBQFN32
End of Life
Silicon Labs
8-bit Microcontrollers - MCU 8051 25 MHz 64 kB flash 4 kB RAM 8-bit Sleepy Bee MCU
1,161 In Stock
Alternative Packaging
1
¥747.5
10
¥495
25
¥451.8
100
¥383.7
250
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250
¥365.4
500
¥327.2
1,000
¥322.2
2,500
¥272.4
4,599
¥267.4
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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:
¥172.7
151 In Stock
Mouser Part #
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
151 In Stock
Alternative Packaging
1
¥172.7
10
¥148
25
¥130.1
100
¥115.8
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200
¥107.6
600
¥100.5
1,000
¥92
2,600
¥84.2
5,000
¥81.7
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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:
¥189.4
1,452 In Stock
Mouser Part #
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
1,452 In Stock
Alternative Packaging
1
¥189.4
10
¥160
25
¥141.8
100
¥121.6
200
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200
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¥78.1
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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:
¥179.4
297 In Stock
Mouser Part #
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
¥179.4
10
¥149.8
25
¥134
100
¥124.9
600
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600
¥103.6
1,000
¥95.3
2,600
¥87
5,000
¥84.4
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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:
¥304
194 In Stock
Mouser Part #
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
¥304
10
¥194.3
25
¥172.7
100
¥142
200
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200
¥123.7
600
¥117.3
1,000
¥98.5
2,600
¥89.9
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¥87
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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:
¥199.3
146 In Stock
Mouser Part #
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
146 In Stock
Alternative Packaging
1
¥199.3
10
¥171.1
25
¥149.7
100
¥135.2
200
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200
¥122.1
600
¥114.6
1,000
¥106.1
2,600
¥98.3
5,000
¥95.3
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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:
¥222.6
380 In Stock
Mouser Part #
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
380 In Stock
Alternative Packaging
1
¥222.6
10
¥160.3
25
¥143.7
100
¥128.6
600
View
600
¥108.3
1,000
¥98.5
2,600
¥89.9
5,000
¥87
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8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 32 kB flash 2.304 kB RAM 29 GPIO BB5 8-bit MCU
EFM8BB52F32G-C-QFN32
Silicon Labs
1:
¥294
1,696 In Stock
Mouser Part #
634-EFM852F32GCQFN32
Silicon Labs
8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 32 kB flash 2.304 kB RAM 29 GPIO BB5 8-bit MCU
1,696 In Stock
Alternative Packaging
1
¥294
10
¥187.7
25
¥167.8
100
¥137.7
200
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200
¥119.8
600
¥113.6
1,000
¥95.3
2,600
¥87
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¥84.4
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8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 32 kB flash 2.304 kB RAM 16 GPIO BB5 8-bit MCU
EFM8BB52F32G-C-TSSOP20
Silicon Labs
1:
¥234.2
6 In Stock
Mouser Part #
634-EFM852F32GCTOP20
Silicon Labs
8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 32 kB flash 2.304 kB RAM 16 GPIO BB5 8-bit MCU
6 In Stock
Alternative Packaging
1
¥234.2
10
¥201
25
¥176.1
100
¥154
200
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200
¥147
600
¥138.4
1,000
¥120.1
2,600
¥109.5
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¥106.1
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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:
¥156.1
236 In Stock
Mouser Part #
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
236 In Stock
Alternative Packaging
1
¥156.1
10
¥134.4
100
¥123.6
200
¥107.3
600
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600
¥101.7
1,000
¥85.5
2,600
¥77.9
5,000
¥75.6
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Development Boards & Kits - 8051
EFM8BB1LCK
Silicon Labs
1:
¥3,371.8
14 In Stock
14 Expected 9/8/2026
Mouser Part #
634-EFM8BB1LCK
Silicon Labs
Development Boards & Kits - 8051
14 In Stock
14 Expected 9/8/2026
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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:
¥606.3
325 In Stock
Mouser Part #
634-EFM8UBF64GBQFN32
Silicon Labs
8-bit Microcontrollers - MCU 8051 48 MHz 64 kB flash 4 kB RAM 8-bit Universal Bee MCU
325 In Stock
Alternative Packaging
1
¥606.3
10
¥506.6
25
¥431.9
100
¥410.3
500
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500
¥378.7
1,000
¥335.5
2,500
¥323.9
4,599
¥318.9
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