8-bit Microcontrollers - MCU 64K Flash 50MHz 8051 1.71V to 5.5V
+1 image
CY8C3246LTI-149
Infineon Technologies
1:
HK$118.04
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
HK$118.04
10
HK$91.65
25
HK$82.69
100
HK$77.93
250
View
250
HK$74.31
500
HK$70.86
1,000
HK$67.65
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 8051 25 MHz 16 kB flash 2 kB RAM 8-bit Universal Bee MCU
EFM8UB10F16G-C-QFN20R
Silicon Labs
1:
HK$25.40
117 In Stock
49,500 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
117 In Stock
49,500 On Order
View Dates
Alternative Packaging
Stock:
117 Can Dispatch Immediately
On Order:
9,000 Expected 7/1/2027
40,500 Expected 8/1/2027
Factory Lead Time:
31 Weeks
1
HK$25.40
10
HK$18.50
25
HK$16.69
100
HK$15.04
250
View
1,500
HK$12.41
250
HK$14.80
500
HK$13.23
1,000
HK$12.41
1,500
HK$12.41
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 50 MHz 64 kB flash 4.25 kB RAM 8-bit Busy Bee MCU
EFM8BB31F64G-D-QFN32
Silicon Labs
1:
HK$21.54
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
HK$21.54
10
HK$18.08
25
HK$15.86
100
HK$15.04
250
View
250
HK$13.48
500
HK$12.99
1,000
HK$12.25
2,450
HK$12.08
4,900
HK$11.84
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 75 MHz 16 kB flash 1.25 kB RAM 8-bit Laser Bee MCU
+1 image
EFM8LB11F16E-C-QFP32
Silicon Labs
1:
HK$33.13
36 In Stock
Mouser Part No 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
HK$33.13
10
HK$21.95
25
HK$19.97
100
HK$16.93
250
View
250
HK$16.11
500
HK$14.47
1,000
HK$12.91
2,500
HK$12.49
5,000
HK$12.25
Buy
Min.: 1 Mult.: 1
Details
CIP-51 8051
16 kB
1.25 kB
QFP-32
72 MHz
10 bit/12 bit/14 bit
28 I/O
2.2 V
3.6 V
SMD/SMT
8 bit
- 40 C
+ 105 C
EFM8LB1
Tray
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:
HK$21.37
166 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
166 In Stock
Alternative Packaging
1
HK$21.37
10
HK$13.89
25
HK$12.66
100
HK$10.69
250
View
1,500
HK$7.77
250
HK$10.03
500
HK$8.88
1,000
HK$7.78
1,500
HK$7.77
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 16 kB flash 2.25 kB RAM 8-bit Busy Bee MCU
EFM8BB21F16G-C-QFN20
Silicon Labs
1:
HK$13.23
109 In Stock
2,520 Expected 8/1/2027
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
109 In Stock
2,520 Expected 8/1/2027
Alternative Packaging
1
HK$13.23
10
HK$11.26
25
HK$9.86
100
HK$9.21
250
View
250
HK$8.88
500
HK$7.83
1,000
HK$7.28
2,520
HK$7.03
5,040
HK$6.89
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 25 MHz 16 kB flash 2 kB RAM 8-bit Universal Bee MCU
EFM8UB10F16G-C-QFN20
Silicon Labs
1:
HK$25.48
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
HK$25.48
10
HK$18.50
25
HK$17.10
100
HK$14.96
250
View
250
HK$13.97
500
HK$13.07
1,000
HK$12.66
2,520
HK$12.08
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 64K Flash 50MHz 8051 1.71V to 5.5V
+1 image
CY8C3446LTI-085
Infineon Technologies
1:
HK$132.75
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
HK$132.75
10
HK$103.90
25
HK$93.54
100
HK$88.45
250
View
250
HK$84.42
500
HK$79.90
1,000
HK$76.77
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 8051 75 MHz 16 kB flash 1.25 kB RAM 8-bit Laser Bee MCU
+1 image
EFM8LB10F16E-C-QFP32
Silicon Labs
1:
HK$31.48
134 In Stock
Mouser Part No 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
HK$31.48
10
HK$21.29
25
HK$19.73
100
HK$17.10
250
View
250
HK$16.03
500
HK$14.06
1,000
HK$12.08
2,500
HK$11.75
5,000
HK$11.43
Buy
Min.: 1 Mult.: 1
Details
CIP-51 8051
16 kB
1.25 kB
QFP-32
72 MHz
10 bit/12 bit/14 bit
28 I/O
2.2 V
3.6 V
SMD/SMT
8 bit
- 40 C
+ 105 C
EFM8LB1
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:
HK$33.70
44 In Stock
2,520 Expected 1/9/2026
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 1/9/2026
Alternative Packaging
1
HK$33.70
10
HK$24.33
25
HK$22.11
100
HK$19.23
500
HK$17.34
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 25 MHz 32 kB flash 4 kB RAM 8-bit Sleepy Bee MCU
+1 image
EFM8SB20F32G-B-QFN32
Silicon Labs
1:
HK$20.80
787 In Stock
End of Life
Mouser Part No 634-EFM8SBF32GBQFN32
End of Life
Silicon Labs
8-bit Microcontrollers - MCU 8051 25 MHz 32 kB flash 4 kB RAM 8-bit Sleepy Bee MCU
787 In Stock
Alternative Packaging
1
HK$20.80
10
HK$17.51
25
HK$14.88
100
HK$14.14
250
View
250
HK$13.48
500
HK$12.99
1,000
HK$11.34
2,500
HK$11.10
4,599
HK$10.93
Buy
Min.: 1 Mult.: 1
Details
CIP-51 8051
32 kB
4.25 kB
QFN-32
25 MHz
10 bit
24 I/O
1.8 V
3.6 V
SMD/SMT
8 bit
- 40 C
+ 85 C
EFM8SB
Tube
8-bit Microcontrollers - MCU 8051 48 MHz 64 kB flash 4 kB RAM 8-bit Universal Bee MCU
+1 image
EFM8UB20F64G-B-QFP48R
Silicon Labs
1:
HK$40.77
63 In Stock
End of Life
Mouser Part No 634-EFM8UB64GBQFP48R
End of Life
Silicon Labs
8-bit Microcontrollers - MCU 8051 48 MHz 64 kB flash 4 kB RAM 8-bit Universal Bee MCU
63 In Stock
Alternative Packaging
1
HK$40.77
10
HK$31.48
25
HK$29.35
100
HK$27.37
250
HK$26.72
500
HK$21.29
Buy
Min.: 1 Mult.: 1
Reel :500
Details
CIP-51 8051
64 kB
4.25 kB
QFP-48
48 MHz
10 bit
40 I/O
2.65 V
3.6 V
SMD/SMT
8 bit
- 40 C
+ 85 C
EFM8UB2
Reel, Cut Tape, MouseReel
8-bit Microcontrollers - MCU 8051 25 MHz 32 kB flash 4 kB RAM 8-bit Sleepy Bee MCU
+1 image
EFM8SB20F32G-B-QFN32R
Silicon Labs
1:
HK$30.25
81 In Stock
End of Life
Mouser Part No 634-EFM8SB32GBQFN32R
End of Life
Silicon Labs
8-bit Microcontrollers - MCU 8051 25 MHz 32 kB flash 4 kB RAM 8-bit Sleepy Bee MCU
81 In Stock
Alternative Packaging
1
HK$30.25
10
HK$20.47
25
HK$18.99
100
HK$16.52
1,500
HK$11.01
3,000
View
250
HK$15.45
500
HK$13.73
1,000
HK$11.26
3,000
HK$10.69
Buy
Min.: 1 Mult.: 1
Reel :1,500
Details
CIP-51 8051
32 kB
4.25 kB
25 MHz
10 bit
24 I/O
1.8 V
3.6 V
SMD/SMT
8 bit
- 40 C
+ 85 C
EFM8SB
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:
HK$38.88
5 In Stock
End of Life
Mouser Part No 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
HK$38.88
10
HK$25.65
25
HK$23.43
100
HK$19.89
250
View
250
HK$18.82
500
HK$16.93
1,000
HK$16.52
Buy
Min.: 1 Mult.: 1
Details
CIP-51 8051
64 kB
4.35 kB
QFP-32
50 MHz
10 bit, 12 bit
28 I/O
2.2 V
3.6 V
SMD/SMT
8 bit
- 40 C
+ 125 C
Tray
8-bit Microcontrollers - MCU 8051 75 MHz 16 kB flash 1.25 kB RAM 8-bit Laser Bee MCU
EFM8LB11F16E-C-QSOP24
Silicon Labs
1:
HK$29.26
52 In Stock
End of Life
Mouser Part No 634-LB11F16ECQSOP24
End of Life
Silicon Labs
8-bit Microcontrollers - MCU 8051 75 MHz 16 kB flash 1.25 kB RAM 8-bit Laser Bee MCU
52 In Stock
Alternative Packaging
1
HK$29.26
10
HK$19.81
25
HK$18.33
100
HK$15.95
250
View
250
HK$14.96
500
HK$13.15
1,176
HK$10.85
2,352
HK$10.60
5,880
HK$10.28
Buy
Min.: 1 Mult.: 1
Details
CIP-51 8051
16 kB
1.25 kB
QSOP-24
72 MHz
10 bit/12 bit/14 bit
21 I/O
2.2 V
3.6 V
SMD/SMT
8 bit
- 40 C
+ 105 C
EFM8LB1
Tube
8-bit Microcontrollers - MCU 8051 75 MHz 16 kB flash 1.25 kB RAM 8-bit Laser Bee MCU
EFM8LB10F16E-C-QSOP24
Silicon Labs
1:
HK$27.78
53 In Stock
End of Life
Mouser Part No 634-LB10F16ECQSOP24
End of Life
Silicon Labs
8-bit Microcontrollers - MCU 8051 75 MHz 16 kB flash 1.25 kB RAM 8-bit Laser Bee MCU
53 In Stock
Alternative Packaging
1
HK$27.78
10
HK$18.33
25
HK$16.93
100
HK$14.71
250
View
250
HK$13.81
500
HK$12.08
1,176
HK$10.11
2,352
HK$9.78
5,880
HK$9.45
Buy
Min.: 1 Mult.: 1
Details
CIP-51 8051
16 kB
1.25 kB
QSOP-24
72 MHz
10 bit/12 bit/14 bit
21 I/O
2.2 V
3.6 V
SMD/SMT
8 bit
- 40 C
+ 105 C
EFM8LB1
Tube
8-bit Microcontrollers - MCU 8051 50 MHz 32 kB flash 2.25 kB RAM 8-bit Busy Bee MCU
+1 image
EFM8BB31F32I-D-4QFN24
Silicon Labs
1:
HK$27.37
475 In Stock
Mouser Part No 634-EF8BB31F32ID4F24
Silicon Labs
8-bit Microcontrollers - MCU 8051 50 MHz 32 kB flash 2.25 kB RAM 8-bit Busy Bee MCU
475 In Stock
Alternative Packaging
1
HK$27.37
10
HK$18.00
25
HK$16.60
100
HK$14.47
250
View
250
HK$13.56
500
HK$11.84
1,000
HK$9.95
1,911
HK$9.86
5,733
HK$9.62
Buy
Min.: 1 Mult.: 1
Details
CIP-51 8051
32 kB
2.3 kB
QFN-24
50 MHz
10 bit, 12 bit
20 I/O
2.2 V
3.6 V
SMD/SMT
8 bit
- 40 C
+ 125 C
Tube
8-bit Microcontrollers - MCU 8051 75 MHz 32 kB flash 2.25 kB RAM 8-bit Laser Bee MCU
EFM8LB11F32E-C-QFN24R
Silicon Labs
1:
HK$31.48
12 In Stock
Mouser Part No 634-LB11F32ECQFN24R
Silicon Labs
8-bit Microcontrollers - MCU 8051 75 MHz 32 kB flash 2.25 kB RAM 8-bit Laser Bee MCU
12 In Stock
Alternative Packaging
1
HK$31.48
10
HK$21.29
25
HK$19.73
100
HK$17.10
1,500
HK$11.75
3,000
View
250
HK$16.03
500
HK$14.06
1,000
HK$11.84
3,000
HK$11.43
Buy
Min.: 1 Mult.: 1
Reel :1,500
Details
CIP-51 8051
32 kB
2.25 kB
QFN-24
72 MHz
10 bit/12 bit/14 bit
20 I/O
2.2 V
3.6 V
SMD/SMT
8 bit
- 40 C
+ 105 C
EFM8LB1
Reel, Cut Tape
8-bit Microcontrollers - MCU 8051 75 MHz 32 kB flash 2.25 kB RAM 8-bit Laser Bee MCU
EFM8LB12F32E-C-QFN24
Silicon Labs
1:
HK$33.46
257 In Stock
Mouser Part No 634-LB12F32ECQFN24
Silicon Labs
8-bit Microcontrollers - MCU 8051 75 MHz 32 kB flash 2.25 kB RAM 8-bit Laser Bee MCU
257 In Stock
Alternative Packaging
1
HK$33.46
10
HK$22.11
25
HK$20.14
100
HK$17.10
250
View
250
HK$16.28
500
HK$14.55
1,000
HK$12.66
2,520
HK$12.58
5,040
HK$12.33
Buy
Min.: 1 Mult.: 1
Details
CIP-51 8051
32 kB
2.25 kB
QFN-24
72 MHz
10 bit/12 bit/14 bit
20 I/O
2.2 V
3.6 V
SMD/SMT
8 bit
- 40 C
+ 105 C
EFM8LB1
Tube
8-bit Microcontrollers - MCU 8051 50 MHz 32 kB 8-bit MCU
C8051F411-GMR
Silicon Labs
1:
HK$113.93
2,277 In Stock
Mouser Part No 634-C8051F411-GMR
Silicon Labs
8-bit Microcontrollers - MCU 8051 50 MHz 32 kB 8-bit MCU
2,277 In Stock
Alternative Packaging
1
HK$113.93
10
HK$95.19
25
HK$88.45
100
HK$81.54
250
View
1,500
HK$67.49
250
HK$79.32
500
HK$74.23
1,000
HK$71.27
1,500
HK$67.49
Buy
Min.: 1 Mult.: 1
Reel :1,500
Details
8051
32 kB
2.25 kB
QFN-28
50 MHz
12 bit
20 I/O
2 V
5.25 V
SMD/SMT
8 bit
- 40 C
+ 85 C
C8051F411
Reel, Cut Tape, MouseReel
8-bit Microcontrollers - MCU 8051 25 MHz 16 kB LFO 8-bit MCU
+2 images
C8051F336-GM
Silicon Labs
1:
HK$91.82
2,941 In Stock
Mouser Part No 634-C8051F336-GM
Silicon Labs
8-bit Microcontrollers - MCU 8051 25 MHz 16 kB LFO 8-bit MCU
2,941 In Stock
Alternative Packaging
1
HK$91.82
10
HK$76.12
25
HK$64.94
250
HK$63.87
500
View
500
HK$59.35
1,000
HK$53.76
1,911
HK$51.05
Buy
Min.: 1 Mult.: 1
Details
8051
16 kB
768 B
QFN-20
25 MHz
10 bit
17 I/O
2.7 V
3.6 V
SMD/SMT
8 bit
- 40 C
+ 85 C
C8051F336
Tube
8-bit Microcontrollers - MCU 8KB,24ADC,28Pin MCU
+2 images
C8051F351-GM
Silicon Labs
1:
HK$120.09
1,528 In Stock
Mouser Part No 634-C8051F351-GM
Silicon Labs
8-bit Microcontrollers - MCU 8KB,24ADC,28Pin MCU
1,528 In Stock
Alternative Packaging
1
HK$120.09
10
HK$99.63
25
HK$86.72
100
HK$83.35
250
View
250
HK$80.56
500
HK$78.01
1,000
HK$75.38
2,500
Quote
Buy
Min.: 1 Mult.: 1
Details
8051
8 kB
768 B
QFN-28
50 MHz
24 bit
17 I/O
2.7 V
3.6 V
SMD/SMT
8 bit
- 40 C
+ 85 C
C8051F351
Tube
8-bit Microcontrollers - MCU Single-Cycle 8051 8K ISP Flash MCU
+1 image
AT89LP52-20JU
Microchip Technology
1:
HK$28.36
130 Expected 14/9/2026
Mouser Part No 556-AT89LP52-20JU
Microchip Technology
8-bit Microcontrollers - MCU Single-Cycle 8051 8K ISP Flash MCU
130 Expected 14/9/2026
1
HK$28.36
27
HK$25.98
108
HK$24.99
Buy
Min.: 1 Mult.: 1
Details
8051
8 kB
256 B
PLCC-44
20 MHz
No ADC
36 I/O
2.4 V
5.5 V
SMD/SMT
8 bit
- 40 C
+ 85 C
Tube
8-bit Microcontrollers - MCU 8kB/256B RAM, 8b ADC, 2% osc, QFN11 OTP available (T600-GM)
C8051F300-GMR
Silicon Labs
1:
HK$63.13
900 In Stock
Mouser Part No 634-C8051F300-GMR
Silicon Labs
8-bit Microcontrollers - MCU 8kB/256B RAM, 8b ADC, 2% osc, QFN11 OTP available (T600-GM)
900 In Stock
Alternative Packaging
1
HK$63.13
10
HK$51.29
25
HK$44.80
100
HK$41.84
250
View
1,500
HK$34.11
250
HK$40.36
500
HK$38.14
1,000
HK$34.52
1,500
HK$34.11
Buy
Min.: 1 Mult.: 1
Reel :1,500
Details
8051
8 kB
256 B
QFN-11
25 MHz
8 bit
8 I/O
2.7 V
3.6 V
SMD/SMT
8 bit
- 40 C
+ 85 C
C8051F300
Reel, Cut Tape, MouseReel
8-bit Microcontrollers - MCU 50 MIPS, 128 kB, 8 kB, CAN2.0, LIN 2.1, SPI, 2xUART, I2C, QFP48
C8051F580-IQR
Silicon Labs
1:
HK$142.62
4,175 In Stock
End of Life
Mouser Part No 634-C8051F580-IQR
End of Life
Silicon Labs
8-bit Microcontrollers - MCU 50 MIPS, 128 kB, 8 kB, CAN2.0, LIN 2.1, SPI, 2xUART, I2C, QFP48
4,175 In Stock
Alternative Packaging
1
HK$142.62
10
HK$115.90
25
HK$102.67
100
HK$97.90
500
HK$85.73
1,000
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250
HK$93.05
1,000
HK$81.87
2,500
Quote
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Min.: 1 Mult.: 1
Reel :500
Details
8051
128 kB
8.25 kB
TQFP-48
50 MHz
12 bit
40 I/O
1.8 V
5.25 V
SMD/SMT
8 bit
- 40 C
+ 125 C
C8051F580
Reel, Cut Tape, MouseReel
Hong Kong
