8-bit Microcontrollers - MCU 8051 50 MHz 16 kB flash 2.25 kB RAM 8-bit Busy Bee MCU
EFM8BB21F16A-C-QFN20R
Silicon Labs
1:
¥740.8
1,498 Expected 1/15/2027
Mouser Part #
634-BB21F16ACQFN20R
Silicon Labs
8-bit Microcontrollers - MCU 8051 50 MHz 16 kB flash 2.25 kB RAM 8-bit Busy Bee MCU
1,498 Expected 1/15/2027
Alternative Packaging
1
¥740.8
10
¥490
25
¥445.1
100
¥378.7
250
View
1,500
¥315.6
250
¥358.8
500
¥322.2
1,000
¥315.6
1,500
¥315.6
Buy
Min.: 1
Mult.: 1
Reel :
1,500
Details
SMD/SMT
QFN-20
CIP-51 8051
16 kB
8 bit
12 bit
50 MHz
16 I/O
2.25 kB
2.2 V
3.6 V
- 40 C
+ 125 C
AEC-Q100
Reel, Cut Tape
8-bit Microcontrollers - MCU 8kB/256B RAM, 2% osc, QFN11 OTP available (T601-GM)
C8051F301-GMR
Silicon Labs
1:
¥1,458.4
3,000 Expected 1/1/2027
Mouser Part #
634-C8051F301-GMR
Silicon Labs
8-bit Microcontrollers - MCU 8kB/256B RAM, 2% osc, QFN11 OTP available (T601-GM)
3,000 Expected 1/1/2027
Alternative Packaging
1
¥1,458.4
10
¥1,092.9
25
¥1,043.1
100
¥905.2
250
View
1,500
¥712.6
250
¥865.4
500
¥789
1,000
¥770.7
1,500
¥712.6
Buy
Min.: 1
Mult.: 1
Reel :
1,500
Details
SMD/SMT
QFN-11
8051
8 kB
8 bit
No ADC
25 MHz
8 I/O
256 B
2.7 V
3.6 V
- 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
EFM8BB31F64I-D-QFN32R
Silicon Labs
1:
¥682.7
2,430 Expected 8/28/2026
Mouser Part #
634-EF8BB31F64IDN32R
Silicon Labs
8-bit Microcontrollers - MCU 8051 50 MHz 64 kB flash 4.25 kB RAM 8-bit Busy Bee MCU
2,430 Expected 8/28/2026
Alternative Packaging
1
¥682.7
10
¥451.8
25
¥411.9
100
¥348.8
250
View
2,500
¥262.4
250
¥330.5
500
¥297.3
1,000
¥264.1
2,500
¥262.4
Buy
Min.: 1
Mult.: 1
Reel :
2,500
Details
SMD/SMT
QFN-32
CIP-51 8051
64 kB
8 bit
10 bit, 12 bit
50 MHz
29 I/O
4.35 kB
2.2 V
3.6 V
- 40 C
+ 125 C
Reel, Cut Tape
ARM Microcontrollers - MCU Secure Vault High, 3200k Flash, 512k RAM, 20-bit ADC, BGA136, MVP
EFM32PG26B500F3200IL136-B
Silicon Labs
1:
¥1,757.3
1,299 Expected 2/8/2027
New At Mouser
Mouser Part #
634-EMPG26B5IL136
New At Mouser
Silicon Labs
ARM Microcontrollers - MCU Secure Vault High, 3200k Flash, 512k RAM, 20-bit ADC, BGA136, MVP
1,299 Expected 2/8/2027
Alternative Packaging
1
¥1,757.3
10
¥1,499.9
25
¥1,413.5
100
¥1,244.1
250
View
250
¥1,187.6
500
¥1,172.7
1,000
¥1,127.8
Buy
Min.: 1
Mult.: 1
Details
SMD/SMT
BGA-136
ARM Cortex M33
3.13 MB
32 bit
12 bit, 16 bit, 20 bit
80 MHz
64 I/O
512 kB
1.71 V
3.8 V
- 40 C
+ 125 C
Tray
ARM Microcontrollers - MCU ARM Cortex-M0+ 32-bit 25 MHz 64 kB MCU
+1 image
EFM32HG210F64G-C-QFN32R
Silicon Labs
1:
¥870.4
2,717 Expected 8/26/2026
Mouser Part #
634-HG210F64GCQFN32R
Silicon Labs
ARM Microcontrollers - MCU ARM Cortex-M0+ 32-bit 25 MHz 64 kB MCU
2,717 Expected 8/26/2026
Alternative Packaging
1
¥870.4
10
¥709.2
25
¥652.8
100
¥583
250
View
3,000
¥460.1
250
¥546.5
500
¥529.9
1,000
¥481.7
3,000
¥460.1
Buy
Min.: 1
Mult.: 1
Reel :
3,000
Details
SMD/SMT
QFN-32
ARM Cortex M0+
64 kB
32 bit
12 bit
25 MHz
22 I/O
8 kB
1.98 V
3.8 V
- 40 C
+ 85 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
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 8051 25 MHz 8 kB LFO 8-bit MCU
+2 images
C8051F330-GM
Silicon Labs
1:
¥1,637.7
1,911 Expected 10/16/2026
NRND
Mouser Part #
634-C8051F330-GM
NRND
Silicon Labs
8-bit Microcontrollers - MCU 8051 25 MHz 8 kB LFO 8-bit MCU
1,911 Expected 10/16/2026
Alternative Packaging
1
¥1,637.7
10
¥1,357
25
¥1,157.7
100
¥1,109.5
250
View
250
¥1,086.3
500
¥1,049.8
1,000
¥1,024.8
Buy
Min.: 1
Mult.: 1
Details
SMD/SMT
QFN-20
8051
8 kB
8 bit
10 bit
25 MHz
17 I/O
768 B
2.7 V
3.6 V
- 40 C
+ 85 C
Tube
8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 16 kB flash 0.5 kB RAM 12 GPIO BB5 8-bit MCU
EFM8BB50F16G-A-QFN16R
Silicon Labs
1:
¥275.7
1,000 In Stock
Mouser Part #
634-M8BB50F16GAFN16R
Silicon Labs
8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 16 kB flash 0.5 kB RAM 12 GPIO BB5 8-bit MCU
1,000 In Stock
Alternative Packaging
1
¥275.7
10
¥176.1
25
¥156.5
100
¥128.7
250
View
3,000
¥77.9
250
¥112.3
500
¥106.3
1,000
¥89.4
3,000
¥77.9
Buy
Min.: 1
Mult.: 1
Reel :
3,000
Details
SMD/SMT
QFN-16
16 kB
8 bit
12 bit
50 MHz
12 I/O
512 B
1.8 V
5.5 V
- 40 C
+ 85 C
Reel, Cut Tape, MouseReel
8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 16 kB flash 0.5 kB RAM 9 GPIO BB5 8-bit MCU
EFM8BB50F16G-A-QFN12
Silicon Labs
1:
¥172.7
1,207 On Order
Mouser Part #
634-M8BB50F16GAQFN12
Silicon Labs
8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 16 kB flash 0.5 kB RAM 9 GPIO BB5 8-bit MCU
1,207 On Order
View Dates
Alternative Packaging
On Order:
600 Pending
607 Expected 8/12/2026
Factory Lead-Time:
12 Weeks
1
¥172.7
10
¥147.3
25
¥129.4
100
¥109.8
200
View
200
¥109.6
600
¥97.8
1,000
¥85.4
2,600
¥75.4
5,000
¥68.9
Buy
Min.: 1
Mult.: 1
Details
SMD/SMT
QFN-12
16 kB
8 bit
12 bit
50 MHz
9 I/O
512 B
1.8 V
5.5 V
- 40 C
+ 85 C
Cut Tape
8-bit Microcontrollers - MCU 32KB,12ADC,48Pin MCU
C8051F006-GQ
Silicon Labs
1:
¥5,203.9
101 Expected 9/11/2026
End of Life
Mouser Part #
634-C8051F006-GQ
End of Life
Silicon Labs
8-bit Microcontrollers - MCU 32KB,12ADC,48Pin MCU
101 Expected 9/11/2026
Alternative Packaging
1
¥5,203.9
10
¥4,385
25
¥4,160.8
100
¥3,785.4
250
¥3,635.9
Buy
Min.: 1
Mult.: 1
Details
SMD/SMT
TQFP-48
8051
32 kB
8 bit
12 bit
25 MHz
16 I/O
2.25 kB
2.7 V
3.6 V
- 40 C
+ 85 C
Tray
8-bit Microcontrollers - MCU 8051 25 MHz 64 kB CAN 8-bit MCU
+1 image
C8051F040-GQ
Silicon Labs
1:
¥5,486.3
425 Expected 2/26/2027
End of Life
Mouser Part #
634-C8051F040-GQ
End of Life
Silicon Labs
8-bit Microcontrollers - MCU 8051 25 MHz 64 kB CAN 8-bit MCU
425 Expected 2/26/2027
Alternative Packaging
1
¥5,486.3
10
¥4,708.9
25
¥4,498
100
¥4,021.3
250
¥3,836.9
Buy
Min.: 1
Mult.: 1
Details
SMD/SMT
TQFP-100
8051
64 kB
8 bit
8 bit, 12 bit
25 MHz
64 I/O
4.25 kB
2.7 V
3.6 V
- 40 C
+ 85 C
Tray
8-bit Microcontrollers - MCU 8051 25 MHz 64 kB CAN 8-bit MCU
+1 image
C8051F042-GQR
Silicon Labs
1:
¥4,778.7
246 Expected 3/12/2027
End of Life
Mouser Part #
634-C8051F042-GQR
End of Life
Silicon Labs
8-bit Microcontrollers - MCU 8051 25 MHz 64 kB CAN 8-bit MCU
246 Expected 3/12/2027
Alternative Packaging
1
¥4,778.7
10
¥3,981.4
25
¥3,910
100
¥3,788.7
250
¥3,217.4
Buy
Min.: 1
Mult.: 1
Reel :
250
Details
SMD/SMT
TQFP-100
8051
64 kB
8 bit
10 bit
25 MHz
64 I/O
4.25 kB
2.7 V
3.6 V
- 40 C
+ 85 C
Reel, Cut Tape
8-bit Microcontrollers - MCU 8kB/768B RAM, QFN20 OTP available (T631-GM)
+2 images
C8051F331-GMR
Silicon Labs
1:
¥1,762.3
1,500 Expected 12/11/2026
End of Life
Mouser Part #
634-C8051F331-GMR
End of Life
Silicon Labs
8-bit Microcontrollers - MCU 8kB/768B RAM, QFN20 OTP available (T631-GM)
1,500 Expected 12/11/2026
Alternative Packaging
1
¥1,762.3
10
¥1,362
25
¥1,298.9
100
¥1,127.8
250
View
1,500
¥1,029.8
250
¥1,076.3
500
¥1,029.8
1,500
¥1,029.8
Buy
Min.: 1
Mult.: 1
Reel :
1,500
Details
SMD/SMT
QFN-20
8051
8 kB
8 bit
No ADC
25 MHz
17 I/O
768 B
2.7 V
3.6 V
- 40 C
+ 85 C
Reel, Cut Tape, MouseReel
8-bit Microcontrollers - MCU 8051 25 MHz 8 kB 5 V 8-bit MCU
+5 images
C8051F531-C-IT
Silicon Labs
1:
¥1,111.2
1,551 Expected 1/1/2027
End of Life
Mouser Part #
634-C8051F531-C-IT
End of Life
Silicon Labs
8-bit Microcontrollers - MCU 8051 25 MHz 8 kB 5 V 8-bit MCU
1,551 Expected 1/1/2027
Alternative Packaging
1
¥1,111.2
10
¥921.9
25
¥792.3
100
¥785.7
Buy
Min.: 1
Mult.: 1
Details
SMD/SMT
TSSOP-20
8051
8 kB
8 bit
12 bit
25 MHz
16 I/O
256 B
2 V
5.25 V
- 40 C
+ 125 C
AEC-Q100
Tube
8-bit Microcontrollers - MCU 8051 50 MHz 128 kB 5 V CAN LIN 8-bit MCU
C8051F580-IM
Silicon Labs
1:
¥3,062.9
810 Expected 1/29/2027
End of Life
Mouser Part #
634-C8051F580-IM
End of Life
Silicon Labs
8-bit Microcontrollers - MCU 8051 50 MHz 128 kB 5 V CAN LIN 8-bit MCU
810 Expected 1/29/2027
Alternative Packaging
1
¥3,062.9
10
¥2,327.1
25
¥2,132.7
100
¥1,928.4
250
View
250
¥1,847
500
¥1,764
Buy
Min.: 1
Mult.: 1
Details
SMD/SMT
QFN-48
8051
128 kB
8 bit
12 bit
24 MHz
40 I/O
8.25 kB
1.8 V
5.25 V
- 40 C
+ 125 C
AEC-Q100
Tube
8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 16 kB flash 1.28 kB RAM 29 GPIO BB5 8-bit MCU
EFM8BB52F16I-C-QFN32R
Silicon Labs
1:
¥275.7
2,500 Expected 11/5/2026
Mouser Part #
634-EFM852F16IQFN32R
Silicon Labs
8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 16 kB flash 1.28 kB RAM 29 GPIO BB5 8-bit MCU
2,500 Expected 11/5/2026
Alternative Packaging
1
¥275.7
10
¥176.1
25
¥156.5
100
¥128.7
250
View
2,500
¥77.9
250
¥112.3
500
¥106.3
1,000
¥89.4
2,500
¥77.9
Buy
Min.: 1
Mult.: 1
Reel :
2,500
Details
SMD/SMT
QFN-32
16 kB
16 I/O
1.28 kB
1.8 V
5.5 V
- 40 C
+ 85 C
Reel, Cut Tape
8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 16 kB flash 1.28 kB RAM 29 GPIO BB5 8-bit MCU
EFM8BB52F16I-C-QFN32
Silicon Labs
1:
¥275.7
3,400 On Order
Mouser Part #
634-EFMB52F16ICQFN32
Silicon Labs
8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 16 kB flash 1.28 kB RAM 29 GPIO BB5 8-bit MCU
3,400 On Order
View Dates
Alternative Packaging
On Order:
1,200 Expected 8/28/2026
2,200 Expected 1/4/2027
Factory Lead-Time:
24 Weeks
1
¥275.7
10
¥176.1
25
¥156.5
100
¥128.7
200
View
200
¥94.5
1,000
¥91.5
2,600
¥87.2
5,000
¥85.9
Buy
Min.: 1
Mult.: 1
Details
SMD/SMT
QFN-32
16 kB
16 I/O
1.28 kB
1.8 V
5.5 V
- 40 C
+ 85 C
Cut Tape
ARM Microcontrollers - MCU ARM Cortex-M0+ 48 MHz 128 kB flash 32 kB RAM MCU
+1 image
EFM32TG11B320F128GM64-B
Silicon Labs
1,300:
¥559.8
Non-Stocked Lead-Time 12 Weeks
Mouser Part #
634-1B320F128GM64-B
Silicon Labs
ARM Microcontrollers - MCU ARM Cortex-M0+ 48 MHz 128 kB flash 32 kB RAM MCU
Non-Stocked Lead-Time 12 Weeks
Alternative Packaging
1,300
¥559.8
2,600
¥549.8
Buy
Min.: 1,300
Mult.: 1,300
Details
SMD/SMT
QFN-64
ARM Cortex M0+
128 kB
32 bit
12 bit
48 MHz
56 I/O
32 kB
1.8 V
3.8 V
- 40 C
+ 85 C
Tray
ARM Microcontrollers - MCU ARM Cortex-M0+ 48 MHz 128 kB flash 32 kB RAM MCU
+1 image
EFM32TG11B320F128GM64-BR
Silicon Labs
1,000:
¥568.1
Non-Stocked Lead-Time 12 Weeks
Mouser Part #
634-1B320F128GM64-BR
Silicon Labs
ARM Microcontrollers - MCU ARM Cortex-M0+ 48 MHz 128 kB flash 32 kB RAM MCU
Non-Stocked Lead-Time 12 Weeks
Alternative Packaging
1,000
¥568.1
2,000
¥566.4
Buy
Min.: 1,000
Mult.: 1,000
Reel :
1,000
Details
SMD/SMT
QFN-64
ARM Cortex M0+
128 kB
32 bit
12 bit
48 MHz
56 I/O
32 kB
1.8 V
3.8 V
- 40 C
+ 85 C
Reel
ARM Microcontrollers - MCU ARM Cortex-M0+ 48 MHz 128 kB flash 32 kB RAM MCU
EFM32TG11B320F128GQ64-B
Silicon Labs
800:
¥543.1
Non-Stocked Lead-Time 12 Weeks
Mouser Part #
634-1B320F128GQ64-B
Silicon Labs
ARM Microcontrollers - MCU ARM Cortex-M0+ 48 MHz 128 kB flash 32 kB RAM MCU
Non-Stocked Lead-Time 12 Weeks
Alternative Packaging
Buy
Min.: 800
Mult.: 800
Details
SMD/SMT
QFP-64
ARM Cortex M0+
128 kB
32 bit
12 bit
48 MHz
53 I/O
32 kB
1.8 V
3.8 V
- 40 C
+ 85 C
Tray
ARM Microcontrollers - MCU ARM Cortex-M0+ 48 MHz 128 kB flash 32 kB RAM MCU
EFM32TG11B320F128GQ64-BR
Silicon Labs
1,000:
¥568.1
Non-Stocked Lead-Time 12 Weeks
Mouser Part #
634-1B320F128GQ64-BR
Silicon Labs
ARM Microcontrollers - MCU ARM Cortex-M0+ 48 MHz 128 kB flash 32 kB RAM MCU
Non-Stocked Lead-Time 12 Weeks
Alternative Packaging
1,000
¥568.1
2,000
¥566.4
Buy
Min.: 1,000
Mult.: 1,000
Reel :
1,000
Details
SMD/SMT
QFP-64
ARM Cortex M0+
128 kB
32 bit
12 bit
48 MHz
53 I/O
32 kB
1.8 V
3.8 V
- 40 C
+ 85 C
Reel
ARM Microcontrollers - MCU ARM Cortex-M0+ 48 MHz 64 kB flash 32 kB RAM MCU
+1 image
EFM32TG11B340F64GM64-B
Silicon Labs
1,300:
¥509.9
Non-Stocked Lead-Time 12 Weeks
Mouser Part #
634-1B340F64GM64-B
Silicon Labs
ARM Microcontrollers - MCU ARM Cortex-M0+ 48 MHz 64 kB flash 32 kB RAM MCU
Non-Stocked Lead-Time 12 Weeks
Alternative Packaging
1,300
¥509.9
2,600
¥501.6
Buy
Min.: 1,300
Mult.: 1,300
Details
SMD/SMT
QFN-64
ARM Cortex M0+
64 kB
32 bit
12 bit
48 MHz
56 I/O
32 kB
1.8 V
3.8 V
- 40 C
+ 85 C
Tray
ARM Microcontrollers - MCU ARM Cortex-M0+ 48 MHz 64 kB flash 32 kB RAM MCU
+1 image
EFM32TG11B340F64GM64-BR
Silicon Labs
1,000:
¥478.4
Non-Stocked Lead-Time 12 Weeks
Mouser Part #
634-1B340F64GM64-BR
Silicon Labs
ARM Microcontrollers - MCU ARM Cortex-M0+ 48 MHz 64 kB flash 32 kB RAM MCU
Non-Stocked Lead-Time 12 Weeks
Alternative Packaging
Buy
Min.: 1,000
Mult.: 1,000
Reel :
1,000
Details
SMD/SMT
QFN-64
ARM Cortex M0+
64 kB
32 bit
12 bit
48 MHz
56 I/O
32 kB
1.8 V
3.8 V
- 40 C
+ 85 C
Reel
ARM Microcontrollers - MCU ARM Cortex-M0+ 48 MHz 64 kB flash 32 kB RAM MCU
EFM32TG11B340F64GQ64-B
Silicon Labs
800:
¥513.2
Non-Stocked Lead-Time 12 Weeks
Mouser Part #
634-1B340F64GQ64-B
Silicon Labs
ARM Microcontrollers - MCU ARM Cortex-M0+ 48 MHz 64 kB flash 32 kB RAM MCU
Non-Stocked Lead-Time 12 Weeks
Alternative Packaging
Buy
Min.: 800
Mult.: 800
Details
SMD/SMT
QFP-64
ARM Cortex M0+
64 kB
32 bit
12 bit
48 MHz
53 I/O
32 kB
1.8 V
3.8 V
- 40 C
+ 85 C
Tray
ARM Microcontrollers - MCU ARM Cortex-M0+ 48 MHz 64 kB flash 32 kB RAM MCU
EFM32TG11B340F64GQ64-BR
Silicon Labs
1,000:
¥513.2
Non-Stocked Lead-Time 12 Weeks
Mouser Part #
634-1B340F64GQ64-BR
Silicon Labs
ARM Microcontrollers - MCU ARM Cortex-M0+ 48 MHz 64 kB flash 32 kB RAM MCU
Non-Stocked Lead-Time 12 Weeks
Alternative Packaging
Buy
Min.: 1,000
Mult.: 1,000
Reel :
1,000
Details
SMD/SMT
QFP-64
ARM Cortex M0+
64 kB
32 bit
12 bit
48 MHz
53 I/O
32 kB
1.8 V
3.8 V
- 40 C
+ 85 C
Reel