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8-bit Microcontrollers - MCU 8051 50 MHz 16 kB flash 2.25 kB RAM 8-bit Busy Bee MCU
- EFM8BB21F16I-C-QFN20
- Silicon Labs
-
1:
$1.92
-
4,809In Stock
|
Mouser Part No
634-8BB21F16I-CQFN20
|
Silicon Labs
|
8-bit Microcontrollers - MCU 8051 50 MHz 16 kB flash 2.25 kB RAM 8-bit Busy Bee MCU
|
|
4,809In Stock
|
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$1.92
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$1.52
|
|
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$1.33
|
|
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$1.22
|
|
|
View
|
|
|
$1.18
|
|
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$1.17
|
|
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$1.09
|
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$1.05
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$1.04
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Min.: 1
Mult.: 1
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|
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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
|
+ 125 C
|
EFM8BB2
|
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Tube
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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:
$6.21
-
1,520In Stock
|
Mouser Part No
634-BB21F16ACQFN20R
|
Silicon Labs
|
8-bit Microcontrollers - MCU 8051 50 MHz 16 kB flash 2.25 kB RAM 8-bit Busy Bee MCU
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1,520In Stock
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|
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$6.21
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$4.11
|
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$3.74
|
|
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$3.18
|
|
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$2.29
|
|
|
View
|
|
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$3.02
|
|
|
$2.71
|
|
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$2.29
|
|
|
$2.17
|
|
Min.: 1
Mult.: 1
:
1,500
|
|
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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
|
Reel, Cut Tape
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|
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8-bit Microcontrollers - MCU 8051 50 MHz 16 kB flash 2.25 kB RAM 8-bit Busy Bee MCU
- EFM8BB21F16I-C-QSOP24
- Silicon Labs
-
1:
$2.24
-
4,626In Stock
-
End of Life
|
Mouser Part No
634-8BB21F16ICQSOP24
End of Life
|
Silicon Labs
|
8-bit Microcontrollers - MCU 8051 50 MHz 16 kB flash 2.25 kB RAM 8-bit Busy Bee MCU
|
|
4,626In Stock
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|
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$2.24
|
|
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$1.89
|
|
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$1.88
|
|
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$1.86
|
|
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$1.43
|
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Min.: 1
Mult.: 1
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|
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CIP-51 8051
|
16 kB
|
2.3 kB
|
QSOP-24
|
50 MHz
|
12 bit
|
21 I/O
|
2.2 V
|
3.6 V
|
SMD/SMT
|
8 bit
|
- 40 C
|
+ 125 C
|
EFM8BB2
|
|
Tube
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|
|
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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:
$1.79
-
1,533In Stock
|
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
|
|
1,533In Stock
|
|
|
$1.79
|
|
|
$1.42
|
|
|
$1.24
|
|
|
$1.14
|
|
|
View
|
|
|
$1.10
|
|
|
$1.06
|
|
|
$1.00
|
|
|
$0.974
|
|
|
$0.963
|
|
Min.: 1
Mult.: 1
|
|
|
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
- EFM8BB21F16G-C-QFN20R
- Silicon Labs
-
1:
$1.79
-
2,616In Stock
-
45,000On Order
|
Mouser Part No
634-8BB21F16GCQFN20R
|
Silicon Labs
|
8-bit Microcontrollers - MCU 8051 50 MHz 16 kB flash 2.25 kB RAM 8-bit Busy Bee MCU
|
|
2,616In Stock
45,000On Order
Stock:
2,616 Can Dispatch Immediately
On Order:
21,000 Expected 23/7/2026
24,000 Expected 24/7/2026
Factory Lead Time:
16 Weeks
|
|
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$1.79
|
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$1.42
|
|
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$1.26
|
|
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$1.17
|
|
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$0.999
|
|
|
View
|
|
|
$1.11
|
|
|
$1.04
|
|
|
$0.988
|
|
|
$0.965
|
|
Min.: 1
Mult.: 1
:
1,500
|
|
|
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
|
|
Reel, Cut Tape, MouseReel
|
|
|
|
8-bit Microcontrollers - MCU 8051 50 MHz 16 kB flash 2.25 kB RAM 8-bit Busy Bee MCU
- EFM8BB22F16G-C-QFN28
- Silicon Labs
-
1:
$2.34
-
1,447In 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
|
|
1,447In Stock
|
|
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$2.34
|
|
|
$1.97
|
|
|
$1.68
|
|
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$1.58
|
|
|
View
|
|
|
$1.52
|
|
|
$1.45
|
|
|
$1.35
|
|
|
$1.28
|
|
Min.: 1
Mult.: 1
|
|
|
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 50 MHz 16 kB flash 2.25 kB RAM 8-bit Busy Bee MCU
- EFM8BB21F16I-C-QFN20R
- Silicon Labs
-
1:
$1.92
-
373In 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
|
|
373In Stock
|
|
|
$1.92
|
|
|
$1.52
|
|
|
$1.34
|
|
|
$1.25
|
|
|
$1.07
|
|
|
View
|
|
|
$1.19
|
|
|
$1.11
|
|
|
$1.03
|
|
|
$1.01
|
|
Min.: 1
Mult.: 1
:
1,500
|
|
|
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
- EFM8BB21F16A-C-QFN20
- Silicon Labs
-
1:
$3.77
-
154In Stock
-
2,520Expected 22/5/2026
|
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
|
|
154In Stock
2,520Expected 22/5/2026
|
|
|
$3.77
|
|
|
$3.16
|
|
|
$2.93
|
|
|
$2.40
|
|
|
View
|
|
|
$2.34
|
|
|
$2.17
|
|
|
$2.10
|
|
Min.: 1
Mult.: 1
|
|
|
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 16 kB flash 2.25 kB RAM 8-bit Busy Bee MCU
- EFM8BB22F16G-C-QFN28R
- Silicon Labs
-
1:
$2.34
-
2,999Expected 24/7/2026
|
Mouser Part No
634-8BB22F16GCQFN28R
|
Silicon Labs
|
8-bit Microcontrollers - MCU 8051 50 MHz 16 kB flash 2.25 kB RAM 8-bit Busy Bee MCU
|
|
2,999Expected 24/7/2026
|
|
|
$2.34
|
|
|
$1.97
|
|
|
$1.82
|
|
|
$1.64
|
|
|
$1.31
|
|
|
View
|
|
|
$1.53
|
|
|
$1.46
|
|
|
$1.31
|
|
|
$1.26
|
|
|
$1.24
|
|
Min.: 1
Mult.: 1
:
1,500
|
|
|
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
|
|
Reel, Cut Tape, MouseReel
|
|
|
|
8-bit Microcontrollers - MCU 8051 50 MHz 16 kB flash 2.25 kB RAM 8-bit Busy Bee MCU
- EFM8BB22F16I-C-QFN28
- Silicon Labs
-
1:
$4.43
-
1In Stock
|
Mouser Part No
634-8BB22F16ICQFN28
|
Silicon Labs
|
8-bit Microcontrollers - MCU 8051 50 MHz 16 kB flash 2.25 kB RAM 8-bit Busy Bee MCU
|
|
1In Stock
|
|
|
$4.43
|
|
|
$2.89
|
|
|
$2.65
|
|
|
$2.28
|
|
|
View
|
|
|
$2.14
|
|
|
$1.88
|
|
|
$1.56
|
|
|
$1.54
|
|
Min.: 1
Mult.: 1
|
|
|
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
|
+ 125 C
|
EFM8BB2
|
|
Tube
|
|
|
|
8-bit Microcontrollers - MCU 8051 50 MHz 16 kB flash 2.25 kB RAM 8-bit Busy Bee MCU
- EFM8BB22F16I-C-QFN28R
- Silicon Labs
-
1,500:
$1.56
-
Non-Stocked Lead-Time 16 Weeks
|
Mouser Part No
634-8BB22F16ICQFN28R
|
Silicon Labs
|
8-bit Microcontrollers - MCU 8051 50 MHz 16 kB flash 2.25 kB RAM 8-bit Busy Bee MCU
|
|
Non-Stocked Lead-Time 16 Weeks
|
|
Min.: 1,500
Mult.: 1,500
:
1,500
|
|
|
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
|
+ 125 C
|
EFM8BB2
|
|
Reel
|
|
|
|
8-bit Microcontrollers - MCU 8Bit Microcontroller Busy Bee Family
- EFM8BB22F16A-C-QFN28
- Silicon Labs
-
1:
$4.02
-
Non-Stocked Lead-Time 16 Weeks
-
End of Life
|
Mouser Part No
634-EFM8BB22F16ACQ28
End of Life
|
Silicon Labs
|
8-bit Microcontrollers - MCU 8Bit Microcontroller Busy Bee Family
|
|
Non-Stocked Lead-Time 16 Weeks
|
|
|
$4.02
|
|
|
$3.36
|
|
|
$2.86
|
|
|
$2.72
|
|
|
View
|
|
|
$2.60
|
|
|
$2.50
|
|
|
$2.31
|
|
|
$2.24
|
|
Min.: 1
Mult.: 1
|
|
|
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
|
+ 125 C
|
EFM8BB2
|
AEC-Q100
|
Tube
|
|
Singapore