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.

Types of Semiconductors

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Results: 22
Select Image Part # Mfr. Description Datasheet Availability Pricing (DKK) Filter the results in the table by unit price based on your quantity. Qty. RoHS
Silicon Labs I/O Controller Interface IC HID USB to UART Bridge QFN24 27.198In Stock
Min.: 1
Mult.: 1

Silicon Labs I/O Controller Interface IC USB to Dual UART Bridge QFN24 5.231In Stock
Min.: 1
Mult.: 1

Silicon Labs I/O Controller Interface IC USB to Dual UART Bridge QFN24 9.403In Stock
Min.: 1
Mult.: 1
: 1.500


Silicon Labs I/O Controller Interface IC USB to Quad UART Bridge QFN64 8.980In Stock
15.000Expected 05/08/2026
Min.: 1
Mult.: 1
: 2.500


Silicon Labs I/O Controller Interface IC HID USB to UART bridge 5.823In Stock
Min.: 1
Mult.: 1
: 1.500

Silicon Labs USB Interface IC HID USB to SMBUS Bridge QFN24 6.329In Stock
Min.: 1
Mult.: 1

Silicon Labs USB Interface IC USBXpress - USB to UART Bridge QFN20 20.560In Stock
Min.: 1
Mult.: 1

Silicon Labs USB Interface IC USBXpress - USB to UART Bridge QFN24 10.445In Stock
Min.: 1
Mult.: 1

Silicon Labs USB Interface IC USBXpress - USB to UART Bridge QFN20 15.481In Stock
45.000Expected 23/04/2027
Min.: 1
Mult.: 1
: 1.500

Silicon Labs USB Interface IC USBXpress - USB to UART Bridge QFN24 22.031In Stock
27.000Expected 23/04/2027
Min.: 1
Mult.: 1
: 1.500

Silicon Labs USB Interface IC USBXpress - USB to UART Bridge QFN28 23.010In Stock
27.000Expected 23/04/2027
Min.: 1
Mult.: 1
: 1.500

Silicon Labs I/O Controller Interface IC USB to UART Bridge QFN28 3.543In Stock
Min.: 1
Mult.: 1
: 1.500

Silicon Labs I/O Controller Interface IC USB to UART Bridge QFN24 644In Stock
1.911Expected 23/06/2026
Min.: 1
Mult.: 1

Silicon Labs I/O Controller Interface IC USB to UART Bridge QFN24 3.951In Stock
7.500Expected 03/08/2026
Min.: 1
Mult.: 1
: 1.500


Silicon Labs I/O Controller Interface IC USB to Quad UART Bridge QFN64 983In Stock
2.600Expected 27/07/2026
Min.: 1
Mult.: 1

Silicon Labs I/O Controller Interface IC HID USB to UART Bridge QFN28 949In Stock
Min.: 1
Mult.: 1


Silicon Labs I/O Controller Interface IC HID USB to UART bridge 3.314In Stock
Min.: 1
Mult.: 1
: 1.500

Silicon Labs USB Interface IC USBXpress - USB to UART Bridge QFN28 2.105In Stock
22.995Expected 23/04/2027
Min.: 1
Mult.: 1

Silicon Labs USB Interface IC USB to UART Bridge QFN28 306In Stock
37.500Expected 28/08/2026
Min.: 1
Mult.: 1
: 1.500

Silicon Labs I/O Controller Interface IC USB to UART Bridge QFN28 78In Stock
3.066Expected 23/06/2026
Min.: 1
Mult.: 1

Silicon Labs USB Interface IC HID USB to SMBUS Bridge QFN24
7.495Expected 09/06/2026
Min.: 1
Mult.: 1
: 1.500

Silicon Labs USB Interface IC USB to UART Bridge QFN28 Non-Stocked Lead-Time 18 Weeks
Min.: 1.533
Mult.: 1.533