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
26,165In 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 I/O Controller Interface IC USB to UART Bridge QFN24
Datasheet
21,717In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 1,500

Silicon Labs I/O Controller Interface IC USB to Dual UART Bridge QFN24
Datasheet
6,509In Stock
Min.: 1
Mult.: 1

Silicon Labs I/O Controller Interface IC USB to Dual UART Bridge QFN24
Datasheet
6,435In Stock
21,000On Order
MouseReel Available
Min.: 1
Mult.: 1
: 1,500


Silicon Labs I/O Controller Interface IC USB to Quad UART Bridge QFN64
Datasheet
1,954In Stock
3,900Expected 03/11/2026
Min.: 1
Mult.: 1


Silicon Labs I/O Controller Interface IC USB to Quad UART Bridge QFN64
Datasheet
15,335In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 2,500

Silicon Labs USB Interface IC HID USB to SMBUS Bridge QFN24
Datasheet
5,614In Stock
Min.: 1
Mult.: 1

Silicon Labs USB Interface IC HID USB to SMBUS Bridge QFN24
Datasheet
6,100In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 1,500

Silicon Labs USB Interface IC USB to UART Bridge QFN28
Datasheet
58,207In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 1,500

Silicon Labs USB Interface IC USBXpress - USB to UART Bridge QFN20
Datasheet
14,259In Stock
12,600Expected 11/09/2026
Min.: 1
Mult.: 1

Silicon Labs USB Interface IC USBXpress - USB to UART Bridge QFN20
Datasheet
40,260In Stock
63,000Expected 08/01/2027
MouseReel Available
Min.: 1
Mult.: 1
: 1,500

Silicon Labs I/O Controller Interface IC USB to UART Bridge QFN24
Datasheet
2,165In Stock
Min.: 1
Mult.: 1


Silicon Labs I/O Controller Interface IC HID USB to UART bridge
Datasheet
4,023In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 1,500

Silicon Labs I/O Controller Interface IC HID USB to UART Bridge QFN28
Datasheet
667In Stock
Min.: 1
Mult.: 1

Silicon Labs USB Interface IC USBXpress - USB to UART Bridge QFN24
Datasheet
3,727In Stock
22,932On Order
Min.: 1
Mult.: 1

Silicon Labs USB Interface IC USBXpress - USB to UART Bridge QFN24
Datasheet
4,417In Stock
66,000On Order
MouseReel Available
Min.: 1
Mult.: 1
: 1,500

Silicon Labs USB Interface IC USBXpress - USB to UART Bridge QFN28
Datasheet
3,073In Stock
54,000On Order
MouseReel Available
Min.: 1
Mult.: 1
: 1,500

Silicon Labs USB Interface IC USBXpress - USB to UART Bridge QFN28
Datasheet
1,886In Stock
22,995Expected 01/01/2027
Min.: 1
Mult.: 1

Silicon Labs I/O Controller Interface IC USB to UART Bridge QFN28
Datasheet
7In Stock
4,500Expected 22/09/2026
MouseReel Available
Min.: 1
Mult.: 1
: 1,500

Silicon Labs I/O Controller Interface IC USB to UART Bridge QFN28
Datasheet
12,007On Order
Min.: 1
Mult.: 1

Silicon Labs USB Interface IC USB to UART Bridge QFN28
Datasheet
3,066Expected 09/04/2027
Min.: 1
Mult.: 1