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
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 Mfr.
Description Datasheet Availability Pricing (GBP) 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
Datasheet
27,166In Stock
Min.: 1
Mult.: 1


Silicon Labs I/O Controller Interface IC USB to Quad UART Bridge QFN64
Datasheet
6,262In Stock
15,000Expected 28/07/2026
MouseReel Available
Min.: 1
Mult.: 1
: 2,500


Silicon Labs I/O Controller Interface IC HID USB to UART bridge
Datasheet
5,523In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 1,500

Silicon Labs USB Interface IC HID USB to SMBUS Bridge QFN24
Datasheet
5,810In Stock
Min.: 1
Mult.: 1

Silicon Labs USB Interface IC HID USB to SMBUS Bridge QFN24
Datasheet
6,429In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 1,500

Silicon Labs USB Interface IC USBXpress - USB to UART Bridge QFN20
Datasheet
17,802In Stock
Min.: 1
Mult.: 1

Silicon Labs USB Interface IC USBXpress - USB to UART Bridge QFN24
Datasheet
7,912In Stock
22,932On Order
Min.: 1
Mult.: 1

Silicon Labs USB Interface IC USBXpress - USB to UART Bridge QFN28
Datasheet
5,020In Stock
54,000On Order
MouseReel Available
Min.: 1
Mult.: 1
: 1,500

Silicon Labs I/O Controller Interface IC USB to UART Bridge QFN28
Datasheet
3,029In Stock
4,599Expected 18/09/2026
Min.: 1
Mult.: 1

Silicon Labs I/O Controller Interface IC USB to UART Bridge QFN28
Datasheet
2,887In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 1,500

Silicon Labs I/O Controller Interface IC USB to UART Bridge QFN24
Datasheet
1,746In Stock
1,911Expected 30/07/2026
Min.: 1
Mult.: 1

Silicon Labs I/O Controller Interface IC USB to Dual UART Bridge QFN24
Datasheet
3,090In Stock
5,733Expected 30/07/2026
Min.: 1
Mult.: 1

Silicon Labs I/O Controller Interface IC HID USB to UART Bridge QFN28
Datasheet
724In Stock
Min.: 1
Mult.: 1


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

Silicon Labs USB Interface IC USBXpress - USB to UART Bridge QFN20
Datasheet
2,856In Stock
45,000Expected 21/07/2026
MouseReel Available
Min.: 1
Mult.: 1
: 1,500

Silicon Labs USB Interface IC USBXpress - USB to UART Bridge QFN24
Datasheet
1,046In Stock
66,000Expected 05/02/2027
MouseReel Available
Min.: 1
Mult.: 1
: 1,500

Silicon Labs I/O Controller Interface IC USB to Dual UART Bridge QFN24
Datasheet
171In Stock
13,500Expected 30/07/2026
MouseReel Available
Min.: 1
Mult.: 1
: 1,500


Silicon Labs I/O Controller Interface IC USB to Quad UART Bridge QFN64
Datasheet
30In Stock
2,600Expected 22/07/2026
Min.: 1
Mult.: 1

Silicon Labs USB Interface IC USBXpress - USB to UART Bridge QFN28
Datasheet
55In Stock
22,995Expected 05/02/2027
Min.: 1
Mult.: 1

Silicon Labs I/O Controller Interface IC USB to UART Bridge QFN24
Datasheet
22,398On Order
MouseReel Available
Min.: 1
Mult.: 1
: 1,500

Silicon Labs USB Interface IC USB to UART Bridge QFN28
Datasheet
65,625On Order
MouseReel Available
Min.: 1
Mult.: 1
: 1,500

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