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.

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Results: 22
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 Mfr.
Description Datasheet Availability Pricing (THB) 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
27,498In Stock
Min.: 1
Mult.: 1

Silicon Labs I/O Controller Interface IC USB to Dual UART Bridge QFN24
Datasheet
5,206In Stock
Min.: 1
Mult.: 1

Silicon Labs I/O Controller Interface IC USB to Dual UART Bridge QFN24
Datasheet
9,713In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 1,500


Silicon Labs I/O Controller Interface IC USB to Quad UART Bridge QFN64
Datasheet
9,210In Stock
15,000Expected 8/5/2026
MouseReel Available
Min.: 1
Mult.: 1
: 2,500


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

Silicon Labs USB Interface IC HID USB to SMBUS Bridge QFN24
Datasheet
6,349In Stock
Min.: 1
Mult.: 1

Silicon Labs USB Interface IC USBXpress - USB to UART Bridge QFN20
Datasheet
26,320In Stock
Min.: 1
Mult.: 1

Silicon Labs USB Interface IC USBXpress - USB to UART Bridge QFN24
Datasheet
12,031In Stock
Min.: 1
Mult.: 1

Silicon Labs USB Interface IC USBXpress - USB to UART Bridge QFN20
Datasheet
15,606In Stock
45,000Expected 1/22/2027
MouseReel Available
Min.: 1
Mult.: 1
: 1,500

Silicon Labs USB Interface IC USBXpress - USB to UART Bridge QFN24
Datasheet
23,420In Stock
27,000Expected 1/22/2027
MouseReel Available
Min.: 1
Mult.: 1
: 1,500

Silicon Labs USB Interface IC USBXpress - USB to UART Bridge QFN28
Datasheet
23,775In Stock
27,000Expected 1/22/2027
MouseReel Available
Min.: 1
Mult.: 1
: 1,500

Silicon Labs I/O Controller Interface IC USB to UART Bridge QFN24
Datasheet
680In Stock
1,911Expected 7/3/2026
Min.: 1
Mult.: 1

Silicon Labs I/O Controller Interface IC USB to UART Bridge QFN24
Datasheet
4,002In Stock
7,500Expected 8/3/2026
MouseReel Available
Min.: 1
Mult.: 1
: 1,500


Silicon Labs I/O Controller Interface IC USB to Quad UART Bridge QFN64
Datasheet
1,103In Stock
2,600Expected 7/27/2026
Min.: 1
Mult.: 1

Silicon Labs I/O Controller Interface IC HID USB to UART Bridge QFN28
Datasheet
949In 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 USB to UART Bridge QFN28
Datasheet
537In Stock
37,500Expected 8/28/2026
MouseReel Available
Min.: 1
Mult.: 1
: 1,500

Silicon Labs USB Interface IC USBXpress - USB to UART Bridge QFN28
Datasheet
2,306In Stock
22,995On Order
Min.: 1
Mult.: 1

Silicon Labs I/O Controller Interface IC USB to UART Bridge QFN28
Datasheet
693In Stock
3,000Expected 6/2/2026
MouseReel Available
Min.: 1
Mult.: 1
: 1,500

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

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

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