CP21xx Smart Interface ICs

Silicon Labs CP21xx Smart Interface ICs leverage Silicon Labs' world-class mixed-signal design expertise to provide a family of high-performance interface devices that enable designers to differentiate their products and speed time-to-market. These mixed-signal IC products span different technologies and standards to enable quick and effective communication between two devices or functionalities. These devices include USB to UART bridges, ISB to I2S digital audio bridges, HID USB to SMBus/I2C bridges, and SPI to I2C bridge with GPIO port expanders, and USB to SPI bridges.

Results: 12
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Description Datasheet Availability Pricing (CAD) Filter the results in the table by unit price based on your quantity.
Qty. RoHS ECAD Model Mounting Style
Package / Case
Series
Product
Interface Type
Number of I/Os
Supply Voltage - Max
Supply Voltage - Min
Minimum Operating Temperature
Maximum Operating Temperature
Packaging
Silicon Labs I/O Controller Interface IC HID USB to UART Bridge QFN24
Datasheet
27,498In Stock
Min.: 1
Mult.: 1

SMD/SMT QFN-24 CP2110 3.3 V 3.3 V - 40 C + 85 C Tube
Silicon Labs I/O Controller Interface IC USB to Dual UART Bridge QFN24
Datasheet
5,925In Stock
Min.: 1
Mult.: 1

SMD/SMT QFN-24 CP2105 3.3 V 3.3 V - 40 C + 85 C Tube
Silicon Labs I/O Controller Interface IC USB to Dual UART Bridge QFN24
Datasheet
11,763In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 1,500

SMD/SMT QFN-24 CP2105 USB to Dual UART Bridges UART 5 I/O 3.6 V 3 V - 40 C + 85 C Reel, Cut Tape, MouseReel

Silicon Labs I/O Controller Interface IC USB to Quad UART Bridge QFN64
Datasheet
9,837In Stock
15,000Expected 2026-07-24
MouseReel Available
Min.: 1
Mult.: 1
: 2,500

SMD/SMT QFN-64 CP2108 Reel, Cut Tape, MouseReel

Silicon Labs I/O Controller Interface IC HID USB to UART bridge
Datasheet
5,823In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 1,500

SMD/SMT QFN-24 CP2110 HID USB to UART Bridges UART 10 I/O 3.6 V 3 V - 40 C + 85 C Reel, Cut Tape, MouseReel
Silicon Labs I/O Controller Interface IC USB to UART Bridge QFN24
Datasheet
685In Stock
1,911Expected 2026-06-26
Min.: 1
Mult.: 1

SMD/SMT QFN-24 CP2104 3.3 V 3.3 V - 40 C + 85 C Tube
Silicon Labs I/O Controller Interface IC USB to UART Bridge QFN24
Datasheet
4,076In Stock
7,500Expected 2026-08-03
MouseReel Available
Min.: 1
Mult.: 1
: 1,500

SMD/SMT QFN-24 CP2104 USB to UART Bridges UART 4 I/O 3.6 V 3 V - 40 C + 85 C Reel, Cut Tape, MouseReel

Silicon Labs I/O Controller Interface IC USB to Quad UART Bridge QFN64
Datasheet
1,193In Stock
2,600Expected 2026-07-24
Min.: 1
Mult.: 1

SMD/SMT QFN-64 CP2108 I/O Controllers Serial 3.6 V 3 V - 40 C + 85 C Tray
Silicon Labs I/O Controller Interface IC HID USB to UART Bridge QFN28
Datasheet
949In Stock
Min.: 1
Mult.: 1

SMD/SMT QFN-28 CP2110 3.6 V 3 V - 40 C + 85 C Tube

Silicon Labs I/O Controller Interface IC HID USB to UART bridge
Datasheet
3,314In Stock
Min.: 1
Mult.: 1
: 1,500

SMD/SMT QFN-28 CP2110 HID USB to UART Bridges UART 10 I/O 3.6 V 3 V - 40 C + 85 C Reel, Cut Tape
Silicon Labs I/O Controller Interface IC USB to UART Bridge QFN28
Datasheet
718In Stock
3,000Expected 2026-06-02
MouseReel Available
Min.: 1
Mult.: 1
: 1,500

SMD/SMT MLP-28 CP2103 3.6 V 3.6 V - 55 C + 125 C Reel, Cut Tape, MouseReel
Silicon Labs I/O Controller Interface IC USB to UART Bridge QFN28
Datasheet
78In Stock
3,066Expected 2026-07-10
Min.: 1
Mult.: 1

SMD/SMT MLP-28 CP2103 3.6 V 3.6 V - 55 C + 125 C Tube