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 (SGD) 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 9,442In Stock
Min.: 1
Mult.: 1
: 1,500


Silicon Labs I/O Controller Interface IC USB to Quad UART Bridge QFN64 9,188In Stock
15,000Expected 5/8/2026
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 6,344In Stock
Min.: 1
Mult.: 1

Silicon Labs USB Interface IC USBXpress - USB to UART Bridge QFN20 26,177In Stock
Min.: 1
Mult.: 1

Silicon Labs USB Interface IC USBXpress - USB to UART Bridge QFN24 11,936In Stock
Min.: 1
Mult.: 1

Silicon Labs USB Interface IC USBXpress - USB to UART Bridge QFN20 15,593In Stock
45,000Expected 22/1/2027
Min.: 1
Mult.: 1
: 1,500

Silicon Labs USB Interface IC USBXpress - USB to UART Bridge QFN24 23,000In Stock
27,000Expected 22/1/2027
Min.: 1
Mult.: 1
: 1,500

Silicon Labs USB Interface IC USBXpress - USB to UART Bridge QFN28 23,210In Stock
27,000Expected 22/1/2027
Min.: 1
Mult.: 1
: 1,500

Silicon Labs I/O Controller Interface IC USB to UART Bridge QFN24 680In Stock
1,911Expected 26/6/2026
Min.: 1
Mult.: 1

Silicon Labs I/O Controller Interface IC USB to UART Bridge QFN24 4,001In Stock
7,500Expected 3/8/2026
Min.: 1
Mult.: 1
: 1,500

Silicon Labs I/O Controller Interface IC USB to Dual UART Bridge QFN24 5,164In Stock
Min.: 1
Mult.: 1


Silicon Labs I/O Controller Interface IC USB to Quad UART Bridge QFN64 1,015In Stock
2,600Expected 27/7/2026
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 USB to UART Bridge QFN28 1,151In Stock
37,500Expected 28/8/2026
Min.: 1
Mult.: 1
: 1,500

Silicon Labs USB Interface IC USBXpress - USB to UART Bridge QFN28 2,241In Stock
22,995On Order
Min.: 1
Mult.: 1

Silicon Labs I/O Controller Interface IC USB to UART Bridge QFN28 593In Stock
3,000Expected 2/6/2026
Min.: 1
Mult.: 1
: 1,500

Silicon Labs USB Interface IC HID USB to SMBUS Bridge QFN24 54In Stock
7,500Expected 9/6/2026
Min.: 1
Mult.: 1
: 1,500

Silicon Labs I/O Controller Interface IC USB to UART Bridge QFN28 78In Stock
3,066Expected 3/7/2026
Min.: 1
Mult.: 1

Silicon Labs USB Interface IC USB to UART Bridge QFN28 Non-Stocked Lead-Time 18 Weeks
Min.: 1,533
Mult.: 1,533