8-bit Microcontrollers - MCU 8051 25 MHz 16 kB flash 2 kB RAM 8-bit Universal Bee MCU
EFM8UB11F16G-C-QSOP24
Silicon Labs
1:
$2.68
122 In Stock
End of Life
Mouser Part No 634-8UB11F16GCQSOP24
End of Life
Silicon Labs
8-bit Microcontrollers - MCU 8051 25 MHz 16 kB flash 2 kB RAM 8-bit Universal Bee MCU
122 In Stock
Alternative Packaging
1
$2.68
10
$2.26
25
$1.96
100
$1.86
250
View
250
$1.74
500
$1.67
1,176
$1.49
2,352
$1.47
5,880
$1.44
Buy
Min.: 1 Mult.: 1
Details
CIP-51 8051
16 kB
2.25 kB
QSOP-24
50 MHz
12 bit
17 I/O
2.2 V
3.6 V
SMD/SMT
8 bit
- 40 C
+ 85 C
EFM8UB
Tube
8-bit Microcontrollers - MCU 8051 50 MHz 64 kB 5 V CAN LIN 8-bit MCU
C8051F500-IM
Silicon Labs
1:
$13.53
181 In Stock
End of Life
Mouser Part No 634-C8051F500-IM
End of Life
Silicon Labs
8-bit Microcontrollers - MCU 8051 50 MHz 64 kB 5 V CAN LIN 8-bit MCU
181 In Stock
Alternative Packaging
1
$13.53
10
$11.15
25
$10.08
100
$9.39
250
View
250
$9.14
500
$8.82
903
$8.63
2,709
Quote
Buy
Min.: 1 Mult.: 1
Details
8051
64 kB
4.25 kB
QFN-48
50 MHz
12 bit
40 I/O
1.8 V
5.25 V
SMD/SMT
8 bit
- 40 C
+ 125 C
C8051F500
AEC-Q100
Tube
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 No 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
CIP-51 8051
16 kB
2.3 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
EFM8BB31F64I-D-5QFN32
Silicon Labs
1:
$4.50
1,374 In Stock
End of Life
Mouser Part No 634-EF8BB31F64ID5F32
End of Life
Silicon Labs
8-bit Microcontrollers - MCU 8051 50 MHz 64 kB flash 4.25 kB RAM 8-bit Busy Bee MCU
1,374 In Stock
Alternative Packaging
1
$4.50
10
$2.98
25
$2.72
100
$2.31
250
View
250
$2.19
500
$1.97
1,000
$1.83
2,500
$1.70
4,599
$1.69
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
+ 125 C
Tube
8-bit Microcontrollers - MCU 8051 50 MHz 16 kB flash 2.25 kB RAM 8-bit Busy Bee MCU
EFM8BB21F16G-C-QFN20
Silicon Labs
1:
$1.61
278 In Stock
2,520 Expected 19/02/2027
Mouser Part No 634-8BB21F16GCQFN20
Silicon Labs
8-bit Microcontrollers - MCU 8051 50 MHz 16 kB flash 2.25 kB RAM 8-bit Busy Bee MCU
278 In Stock
2,520 Expected 19/02/2027
Alternative Packaging
1
$1.61
10
$1.37
25
$1.20
100
$1.12
250
View
250
$1.08
500
$0.952
1,000
$0.886
2,520
$0.855
5,040
$0.838
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
Tube
8-bit Microcontrollers - MCU 8051 50 MHz 16 kB flash 2.25 kB RAM 8-bit Busy Bee MCU
+2 images
EFM8BB22F16G-C-QFN28
Silicon Labs
1:
$2.10
1,412 In Stock
Mouser Part No 634-8BB22F16GCQFN28
Silicon Labs
8-bit Microcontrollers - MCU 8051 50 MHz 16 kB flash 2.25 kB RAM 8-bit Busy Bee MCU
1,412 In Stock
Alternative Packaging
1
$2.10
10
$1.77
25
$1.51
100
$1.43
250
View
250
$1.41
500
$1.26
1,000
$1.07
2,500
$1.06
4,599
$1.05
Buy
Min.: 1 Mult.: 1
Details
CIP-51 8051
16 kB
2.3 kB
QFN-28
50 MHz
12 bit
22 I/O
2.2 V
3.6 V
SMD/SMT
8 bit
- 40 C
+ 85 C
EFM8BB2
Tube
8-bit Microcontrollers - MCU 8051 25 MHz 16 kB flash 2 kB RAM 8-bit Universal Bee MCU
EFM8UB10F16G-C-QFN20
Silicon Labs
1:
$3.10
281 In Stock
Mouser Part No 634-8UB10F16GCQFN20
Silicon Labs
8-bit Microcontrollers - MCU 8051 25 MHz 16 kB flash 2 kB RAM 8-bit Universal Bee MCU
281 In Stock
Alternative Packaging
1
$3.10
10
$2.25
25
$2.08
100
$1.82
250
View
250
$1.70
500
$1.59
1,000
$1.54
2,520
$1.47
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
Tube
8-bit Microcontrollers - MCU 8051 25 MHz 16 kB flash 2 kB RAM 8-bit Universal Bee MCU
EFM8UB10F16G-C-QFN28
Silicon Labs
1:
$2.71
473 In Stock
Mouser Part No 634-8UB10F16GCQFN28
Silicon Labs
8-bit Microcontrollers - MCU 8051 25 MHz 16 kB flash 2 kB RAM 8-bit Universal Bee MCU
473 In Stock
Alternative Packaging
1
$2.71
10
$2.28
25
$1.94
100
$1.84
500
View
500
$1.65
1,000
$1.54
2,500
$1.50
4,599
$1.45
Buy
Min.: 1 Mult.: 1
Details
CIP-51 8051
16 kB
2.25 kB
QFN-28
50 MHz
12 bit
22 I/O
2.2 V
3.6 V
SMD/SMT
8 bit
- 40 C
+ 85 C
EFM8UB
Tube
8-bit Microcontrollers - MCU 8051 50 MHz 16 kB flash 2.25 kB RAM 8-bit Busy Bee MCU
EFM8BB21F16I-C-QFN20R
Silicon Labs
1:
$2.60
179 In Stock
Mouser Part No 634-BB21F16ICQFN20R
Silicon Labs
8-bit Microcontrollers - MCU 8051 50 MHz 16 kB flash 2.25 kB RAM 8-bit Busy Bee MCU
179 In Stock
Alternative Packaging
1
$2.60
10
$1.69
25
$1.54
100
$1.30
250
View
1,500
$0.945
250
$1.22
500
$1.08
1,000
$0.946
1,500
$0.945
Buy
Min.: 1 Mult.: 1
Reel :1,500
Details
CIP-51 8051
16 kB
2.25 kB
QFN-20
50 MHz
12 bit
16 I/O
2.2 V
3.6 V
SMD/SMT
8 bit
- 40 C
+ 125 C
EFM8BB2
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:
$2.62
88 In Stock
9,800 On Order
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
88 In Stock
9,800 On Order
View Dates
Alternative Packaging
Stock:
88 Can Dispatch Immediately
On Order:
4,900 Expected 16/10/2026
4,900 Expected 30/10/2026
Factory Lead Time:
16 Weeks
1
$2.62
10
$2.20
25
$1.93
100
$1.83
250
View
250
$1.64
500
$1.58
1,000
$1.49
2,450
$1.47
4,900
$1.44
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 16 kB flash 2.25 kB RAM 8-bit Busy Bee MCU
+1 image
EFM8BB21F16A-C-QFN20
Silicon Labs
1:
$4.10
44 In Stock
2,520 Expected 01/09/2026
Mouser Part No 634-EFM8BB21F16FN20
Silicon Labs
8-bit Microcontrollers - MCU 8051 50 MHz 16 kB flash 2.25 kB RAM 8-bit Busy Bee MCU
44 In Stock
2,520 Expected 01/09/2026
Alternative Packaging
1
$4.10
10
$2.96
25
$2.69
100
$2.22
250
View
250
$2.13
500
$1.95
1,000
$1.84
2,520
$1.81
Buy
Min.: 1 Mult.: 1
Details
CIP-51 8051
16 kB
2.25 kB
QFN-20
50 MHz
12 bit
16 I/O
2.2 V
3.6 V
SMD/SMT
8 bit
- 40 C
+ 125 C
EFM8BB2
AEC-Q100
Tube
8-bit Microcontrollers - MCU 8051 50 MHz 8 kB 8-bit MCU
C8051F353-GMR
Silicon Labs
1:
$12.90
103 In Stock
Mouser Part No 634-C8051F353-GMR
Silicon Labs
8-bit Microcontrollers - MCU 8051 50 MHz 8 kB 8-bit MCU
103 In Stock
Alternative Packaging
1
$12.90
10
$10.49
25
$9.22
100
$8.79
250
View
1,500
$7.09
250
$8.58
500
$7.85
1,000
$7.29
1,500
$7.09
3,000
Quote
Buy
Min.: 1 Mult.: 1
Reel :1,500
Details
8051
8 kB
768 B
QFN-28
50 MHz
16 bit
17 I/O
2.7 V
3.6 V
SMD/SMT
8 bit
- 40 C
+ 85 C
C8051F353
Reel, Cut Tape
8-bit Microcontrollers - MCU 8051 50 MHz 32 kB 5 V CAN LIN 8-bit MCU
C8051F506-IM
Silicon Labs
1:
$12.41
6 In Stock
Mouser Part No 634-C8051F506-IM
Silicon Labs
8-bit Microcontrollers - MCU 8051 50 MHz 32 kB 5 V CAN LIN 8-bit MCU
6 In Stock
Alternative Packaging
1
$12.41
10
$10.09
25
$9.62
100
$8.35
250
View
250
$7.98
500
$7.27
1,000
$6.77
2,500
Quote
Buy
Min.: 1 Mult.: 1
Details
8051
32 kB
4.25 kB
QFN-32
50 MHz
12 bit
25 I/O
1.8 V
5.25 V
SMD/SMT
8 bit
- 40 C
+ 125 C
C8051F506
AEC-Q100
Tube
8-bit Microcontrollers - MCU 64K Flash 50MHz 8051 1.71V to 5.5V
+1 image
CY8C3246LTI-149
Infineon Technologies
1:
$14.36
8 In Stock
Mouser Part No 727-CY8C3246LTI-149
Infineon Technologies
8-bit Microcontrollers - MCU 64K Flash 50MHz 8051 1.71V to 5.5V
8 In Stock
Alternative Packaging
1
$14.36
10
$11.15
25
$10.06
100
$9.48
250
View
250
$9.04
500
$8.62
1,000
$8.23
2,600
Quote
Buy
Min.: 1 Mult.: 1
Details
8051
64 kB
8 kB
QFN-68
50 MHz
12 bit
46 I/O
1.71 V
5.5 V
SMD/SMT
8 bit
- 40 C
+ 85 C
CY8C3246
Tray
8-bit Microcontrollers - MCU PSoC 32KB FLASH 1.7-5.5V 38 I/O
+1 image
CY8C3246LTI-149T
Infineon Technologies
1:
$14.53
23 In Stock
Mouser Part No 727-CY8C3246LTI-149T
Infineon Technologies
8-bit Microcontrollers - MCU PSoC 32KB FLASH 1.7-5.5V 38 I/O
23 In Stock
Alternative Packaging
1
$14.53
10
$11.03
25
$10.58
100
$9.32
250
View
2,000
$7.83
250
$8.87
500
$8.29
1,000
$7.97
2,000
$7.83
4,000
Quote
Buy
Min.: 1 Mult.: 1
Reel :2,000
Details
8051
64 kB
8 kB
QFN-68
50 MHz
12 bit
46 I/O
1.71 V
5.5 V
SMD/SMT
8 bit
- 40 C
+ 85 C
CY8C3246
Reel, Cut Tape
8-bit Microcontrollers - MCU PSoC 64KB FLASH 1.7-5.5V 62 I/O
CY8C3446AXI-099T
Infineon Technologies
1:
$16.63
113 In Stock
Mouser Part No 727-CY8C3446AXI-099T
Infineon Technologies
8-bit Microcontrollers - MCU PSoC 64KB FLASH 1.7-5.5V 62 I/O
113 In Stock
Alternative Packaging
1
$16.63
10
$13.04
25
$11.74
100
$11.11
250
View
1,500
$9.07
250
$10.81
500
$9.94
1,000
$9.35
1,500
$9.07
3,000
Quote
Buy
Min.: 1 Mult.: 1
Reel :1,500
Details
8051
64 kB
8 kB
TQFP-100
50 MHz
12 bit
72 I/O
1.71 V
5.5 V
SMD/SMT
8 bit
- 40 C
+ 85 C
CY8C3446
Reel, Cut Tape, MouseReel
8-bit Microcontrollers - MCU 64K Flash 50MHz 8051 1.71V to 5.5V
+1 image
CY8C3446LTI-085
Infineon Technologies
1:
$14.67
6 In Stock
Mouser Part No 727-CY8C3446LTI-085
Infineon Technologies
8-bit Microcontrollers - MCU 64K Flash 50MHz 8051 1.71V to 5.5V
6 In Stock
Alternative Packaging
1
$14.67
10
$11.58
25
$10.81
100
$9.96
250
View
250
$9.54
500
$9.30
1,000
$9.10
2,600
Quote
Buy
Min.: 1 Mult.: 1
Details
8051
64 kB
8 kB
QFN-68
50 MHz
12 bit
48 I/O
1.71 V
5.5 V
SMD/SMT
8 bit
- 40 C
+ 85 C
CY8C3446
Tray
8-bit Microcontrollers - MCU 50MIPS,128KB,12ADC,100Pin MCU
C8051F124-GQ
Silicon Labs
1:
$48.44
5 In Stock
1,350 Expected 19/03/2027
End of Life
Mouser Part No 634-C8051F124-GQ
End of Life
Silicon Labs
8-bit Microcontrollers - MCU 50MIPS,128KB,12ADC,100Pin MCU
5 In Stock
1,350 Expected 19/03/2027
Alternative Packaging
1
$48.44
10
$40.06
25
$38.38
100
$36.34
250
$35.42
Buy
Min.: 1 Mult.: 1
Details
8051
128 kB
8.25 kB
TQFP-100
50 MHz
8 bit, 12 bit
64 I/O
2.7 V
3.6 V
SMD/SMT
8 bit
- 40 C
+ 85 C
C8051F124
Tray
8-bit Microcontrollers - MCU 8051 50 MHz 128 kB 8-bit MCU
+1 image
C8051F125-GQ
Silicon Labs
1:
$46.65
5 In Stock
End of Life
Mouser Part No 634-C8051F125-GQ
End of Life
Silicon Labs
8-bit Microcontrollers - MCU 8051 50 MHz 128 kB 8-bit MCU
5 In Stock
Alternative Packaging
1
$46.65
10
$38.58
25
$36.96
100
$35.02
250
$35.00
Buy
Min.: 1 Mult.: 1
Details
8051
128 kB
8.25 kB
TQFP-64
50 MHz
12 bit
32 I/O
2.7 V
3.6 V
SMD/SMT
8 bit
- 40 C
+ 85 C
C8051F125
Tray
8-bit Microcontrollers - MCU 8051 50 MHz 128 kB 8-bit MCU
+1 image
C8051F127-GQ
Silicon Labs
1:
$39.99
22 In Stock
End of Life
Mouser Part No 634-C8051F127-GQ
End of Life
Silicon Labs
8-bit Microcontrollers - MCU 8051 50 MHz 128 kB 8-bit MCU
22 In Stock
Alternative Packaging
1
$39.99
10
$33.52
25
$31.61
100
$28.79
250
View
250
$28.04
800
Quote
Buy
Min.: 1 Mult.: 1
Details
8051
128 kB
8.25 kB
TQFP-64
50 MHz
8 bit, 10 bit
32 I/O
2.7 V
3.6 V
SMD/SMT
8 bit
- 40 C
+ 85 C
C8051F127
Tray
8-bit Microcontrollers - MCU 8051 50 MHz 64 kB 5 V CAN LIN 8-bit MCU
+1 image
C8051F500-IQ
Silicon Labs
1:
$13.81
149 In Stock
End of Life
Mouser Part No 634-C8051F500-IQ
End of Life
Silicon Labs
8-bit Microcontrollers - MCU 8051 50 MHz 64 kB 5 V CAN LIN 8-bit MCU
149 In Stock
Alternative Packaging
1
$13.81
10
$11.00
25
$10.18
100
$9.33
250
View
250
$8.87
500
$8.43
1,000
$8.26
2,500
Quote
Buy
Min.: 1 Mult.: 1
Details
8051
64 kB
4.25 kB
QFP-48
50 MHz
12 bit
40 I/O
1.8 V
5.25 V
SMD/SMT
8 bit
- 40 C
+ 125 C
C8051F500
AEC-Q100
Tray
8-bit Microcontrollers - MCU 50 MIPS, 64 kB, 4 kB, CAN2.0, LIN 2.1, SPI, UART, I2C, QFP48
C8051F500-IQR
Silicon Labs
1:
$13.15
23 In Stock
End of Life
Mouser Part No 634-C8051F500-IQR
End of Life
Silicon Labs
8-bit Microcontrollers - MCU 50 MIPS, 64 kB, 4 kB, CAN2.0, LIN 2.1, SPI, UART, I2C, QFP48
23 In Stock
Alternative Packaging
1
$13.15
10
$10.36
25
$9.82
100
$9.06
500
$9.00
Buy
Min.: 1 Mult.: 1
Reel :500
Details
8051
64 kB
4.25 kB
TQFP-48
50 MHz
12 bit
40 I/O
1.8 V
5.25 V
SMD/SMT
8 bit
- 40 C
+ 125 C
C8051F500
Reel, Cut Tape, MouseReel
8-bit Microcontrollers - MCU 8051 50 MHz 64 kB 5 V 8-bit MCU
C8051F503-IM
Silicon Labs
1:
$12.62
44 In Stock
End of Life
Mouser Part No 634-C8051F503-IM
End of Life
Silicon Labs
8-bit Microcontrollers - MCU 8051 50 MHz 64 kB 5 V 8-bit MCU
44 In Stock
Alternative Packaging
1
$12.62
10
$10.26
25
$9.78
100
$8.49
250
View
250
$8.11
500
$7.39
1,000
$6.66
Buy
Min.: 1 Mult.: 1
Details
8051
64 kB
4.25 kB
QFN-32
50 MHz
12 bit
25 I/O
1.8 V
5.25 V
SMD/SMT
8 bit
- 40 C
+ 125 C
C8051F503
AEC-Q100
Tube
8-bit Microcontrollers - MCU 8051 50 MHz 32 kB 5 V 8-bit MCU
+1 image
C8051F505-IQ
Silicon Labs
1:
$13.01
21 In Stock
End of Life
Mouser Part No 634-C8051F505-IQ
End of Life
Silicon Labs
8-bit Microcontrollers - MCU 8051 50 MHz 32 kB 5 V 8-bit MCU
21 In Stock
Alternative Packaging
1
$13.01
10
$10.58
25
$10.09
100
$8.76
250
View
250
$7.88
500
$7.30
1,000
$6.95
Buy
Min.: 1 Mult.: 1
Details
8051
32 kB
4.25 kB
QFP-48
50 MHz
12 bit
40 I/O
1.8 V
5.25 V
SMD/SMT
8 bit
- 40 C
+ 125 C
C8051F505
AEC-Q100
Tray
8-bit Microcontrollers - MCU 50 MIPS, 32 kB, 4 kB, SPI, UART, I2C, QFP48
C8051F505-IQR
Silicon Labs
1:
$13.00
1 In Stock
End of Life
Mouser Part No 634-C8051F505-IQR
End of Life
Silicon Labs
8-bit Microcontrollers - MCU 50 MIPS, 32 kB, 4 kB, SPI, UART, I2C, QFP48
1 In Stock
Alternative Packaging
1
$13.00
10
$10.57
25
$10.08
100
$8.75
250
$8.36
500
$8.02
Buy
Min.: 1 Mult.: 1
Reel :500
Details
8051
32 kB
4.25 kB
50 MHz
12 bit
40 I/O
1.8 V
5.25 V
SMD/SMT
8 bit
- 40 C
+ 125 C
C8051F505
Reel, Cut Tape
Israel
