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 (CHF) 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
26’166In 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
10’444In Stock
12’000Expected 8/11/2026
MouseReel Available
Min.: 1
Mult.: 1
: 1’500

Silicon Labs I/O Controller Interface IC USB to Dual UART Bridge QFN24
Datasheet
7’960In Stock
Min.: 1
Mult.: 1

Silicon Labs I/O Controller Interface IC USB to Dual UART Bridge QFN24
Datasheet
10’413In Stock
21’000Expected 10/12/2026
MouseReel Available
Min.: 1
Mult.: 1
: 1’500


Silicon Labs I/O Controller Interface IC USB to Quad UART Bridge QFN64
Datasheet
2’151In Stock
Min.: 1
Mult.: 1


Silicon Labs I/O Controller Interface IC USB to Quad UART Bridge QFN64
Datasheet
19’049In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 2’500

Silicon Labs USB Interface IC HID USB to SMBUS Bridge QFN24
Datasheet
5’695In Stock
Min.: 1
Mult.: 1

Silicon Labs USB Interface IC HID USB to SMBUS Bridge QFN24
Datasheet
6’127In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 1’500

Silicon Labs USB Interface IC USBXpress - USB to UART Bridge QFN20
Datasheet
15’940In Stock
12’600Expected 1/15/2027
Min.: 1
Mult.: 1

Silicon Labs USB Interface IC USBXpress - USB to UART Bridge QFN20
Datasheet
44’688In Stock
63’000Expected 2/19/2027
MouseReel Available
Min.: 1
Mult.: 1
: 1’500

Silicon Labs I/O Controller Interface IC USB to UART Bridge QFN28
Datasheet
2’320In Stock
4’500Expected 10/16/2026
MouseReel Available
Min.: 1
Mult.: 1
: 1’500

Silicon Labs I/O Controller Interface IC USB to UART Bridge QFN24
Datasheet
3’661In 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
669In Stock
Min.: 1
Mult.: 1

Silicon Labs USB Interface IC USBXpress - USB to UART Bridge QFN24
Datasheet
4’814In Stock
22’932On Order
Min.: 1
Mult.: 1

Silicon Labs USB Interface IC USBXpress - USB to UART Bridge QFN28
Datasheet
58In Stock
22’995Expected 2/5/2027
Min.: 1
Mult.: 1

Silicon Labs USB Interface IC USBXpress - USB to UART Bridge QFN24
Datasheet
61In Stock
66’000Expected 2/5/2027
MouseReel Available
Min.: 1
Mult.: 1
: 1’500

Silicon Labs USB Interface IC USBXpress - USB to UART Bridge QFN28
Datasheet
58In Stock
54’000On Order
MouseReel Available
Min.: 1
Mult.: 1
: 1’500

Silicon Labs USB Interface IC USB to UART Bridge QFN28
Datasheet
65’094On Order
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
Non-Stocked Lead-Time 29 Weeks
Min.: 1
Mult.: 1