8-bit Microcontrollers - MCU 8051 50 MHz 32 kB 5 V 8-bit MCU
+1 image
C8051F505-IQ
Silicon Labs
1:
$10.85
104 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
104 In Stock
Alternative Packaging
1
$10.85
10
$9.00
25
$8.39
250
$8.36
500
View
500
$7.62
1,000
$7.14
2,500
Quote
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
248 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
248 In Stock
Alternative Packaging
1
$13.00
10
$10.57
25
$10.08
100
$8.75
500
$7.79
1,000
View
250
$8.36
1,000
$7.10
2,500
Quote
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
8-bit Microcontrollers - MCU 8051 50 MHz 128 kB 5 V 8-bit MCU
C8051F581-IM
Silicon Labs
1:
$17.49
174 In Stock
End of Life
Mouser Part No 634-C8051F581-IM
End of Life
Silicon Labs
8-bit Microcontrollers - MCU 8051 50 MHz 128 kB 5 V 8-bit MCU
174 In Stock
Alternative Packaging
1
$17.49
10
$13.29
25
$12.74
100
$11.22
250
View
250
$10.67
500
$10.03
903
$10.02
2,709
Quote
Buy
Min.: 1 Mult.: 1
Details
8051
128 kB
8.25 kB
QFN-48
50 MHz
12 bit
40 I/O
1.8 V
5.25 V
SMD/SMT
8 bit
- 40 C
+ 125 C
C8051F581
AEC-Q100
Tube
8-bit Microcontrollers - MCU 50 MIPS, 128 kB, 8 kB, SPI, 2xUART, I2C, QFP48
C8051F581-IQR
Silicon Labs
1:
$17.15
15 In Stock
End of Life
Mouser Part No 634-C8051F581-IQR
End of Life
Silicon Labs
8-bit Microcontrollers - MCU 50 MIPS, 128 kB, 8 kB, SPI, 2xUART, I2C, QFP48
15 In Stock
Alternative Packaging
1
$17.15
10
$13.49
25
$12.70
100
$11.39
250
$11.34
500
$10.17
Buy
Min.: 1 Mult.: 1
Reel :500
Details
8051
128 kB
8.25 kB
QFN-48
50 MHz
12 bit
40 I/O
1.8 V
5.25 V
SMD/SMT
8 bit
- 40 C
+ 125 C
C8051F581
Reel, Cut Tape, MouseReel
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:
$1.94
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
$1.94
10
$1.64
25
$1.52
100
$1.36
250
View
250
$1.27
500
$1.24
1,000
$1.22
2,500
$1.19
5,000
$1.16
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
$1.27
100
$1.12
250
View
250
$1.03
500
$0.92
1,000
$0.801
2,520
$0.746
5,040
$0.728
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
$1.36
500
$1.25
1,000
$1.05
2,500
$1.01
4,599
$0.997
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
279 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
279 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-QFN20R
Silicon Labs
1:
$3.09
2,692 In Stock
54,000 On Order
Mouser Part No 634-8UB10F16GCQFN20R
Silicon Labs
8-bit Microcontrollers - MCU 8051 25 MHz 16 kB flash 2 kB RAM 8-bit Universal Bee MCU
2,692 In Stock
54,000 On Order
View Dates
Alternative Packaging
Stock:
2,692 Can Dispatch Immediately
On Order:
9,000 Expected 04/08/2026
4,500 Expected 11/08/2026
16,500 Expected 19/02/2027
24,000 Expected 30/07/2027
Factory Lead Time:
31 Weeks
1
$3.09
10
$2.24
25
$2.07
100
$1.83
250
View
1,500
$1.29
250
$1.71
500
$1.56
1,000
$1.30
1,500
$1.29
Buy
Min.: 1 Mult.: 1
Reel :1,500
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
Reel, Cut Tape, MouseReel
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
250
View
250
$1.75
500
$1.61
1,000
$1.40
2,500
$1.35
4,599
$1.32
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:
$2.53
218 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
218 In Stock
9,800 On Order
View Dates
Alternative Packaging
Stock:
218 Can Dispatch Immediately
On Order:
4,900 Expected 16/10/2026
4,900 Expected 30/10/2026
Factory Lead Time:
16 Weeks
1
$2.53
10
$2.12
25
$1.97
100
$1.76
250
View
250
$1.58
500
$1.52
1,000
$1.45
2,450
$1.40
4,900
$1.37
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
306 In Stock
2,520 Expected 15/01/2027
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
306 In Stock
2,520 Expected 15/01/2027
Alternative Packaging
1
$4.10
10
$2.96
25
$2.69
100
$2.29
250
View
250
$2.17
500
$1.95
1,000
$1.75
2,520
$1.65
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:
$13.08
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
$13.08
10
$10.63
25
$10.14
100
$8.80
250
View
1,500
$6.58
250
$8.41
500
$7.67
1,000
$6.91
1,500
$6.58
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 16kB/1kB RAM, 10b ADC, 10b 2xDAC, QFN24
C8051F390-A-GMR
Silicon Labs
1:
$5.52
113 In Stock
Mouser Part No 634-C8051F390-A-GMR
Silicon Labs
8-bit Microcontrollers - MCU 16kB/1kB RAM, 10b ADC, 10b 2xDAC, QFN24
113 In Stock
Alternative Packaging
1
$5.52
10
$3.79
25
$3.53
100
$3.11
250
View
1,500
$2.28
250
$2.95
500
$2.64
1,000
$2.29
1,500
$2.28
Buy
Min.: 1 Mult.: 1
Reel :1,500
Details
8051
16 kB
1 kB
QFN-24
50 MHz
10 bit
21 I/O
1.8 V
3.6 V
SMD/SMT
8 bit
- 40 C
+ 105 C
C8051F390
Reel, Cut Tape, MouseReel
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:
$13.04
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
$13.04
10
$10.26
25
$9.56
100
$8.80
250
View
250
$8.42
500
$8.20
1,000
$7.89
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:
$15.11
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
$15.11
10
$11.94
25
$11.14
100
$10.27
250
View
1,500
$8.95
250
$10.18
500
$9.94
1,000
$9.23
1,500
$8.95
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
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
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 64 kB 5 V CAN LIN 8-bit MCU
+1 image
C8051F500-IQ
Silicon Labs
1:
$12.54
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
$12.54
10
$10.40
25
$9.70
100
$8.86
250
View
250
$8.42
500
$8.07
1,000
$7.80
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
Israel
