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 (CAD) Filter the results in the table by unit price based on your quantity.
Qty. RoHS
Silicon Labs USB Interface IC HID USB to SMBUS Bridge QFN24
Datasheet
12,688In Stock
Min.: 1
Mult.: 1

Silicon Labs I/O Controller Interface IC HID USB to UART Bridge QFN24
Datasheet
28,409In Stock
Min.: 1
Mult.: 1

Silicon Labs USB Interface IC USB to UART Bridge QFN28
Datasheet
16,443In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 1,500

Silicon Labs I/O Controller Interface IC USB to Dual UART Bridge QFN24
Datasheet
9,105In Stock
Min.: 1
Mult.: 1

Silicon Labs I/O Controller Interface IC USB to Dual UART Bridge QFN24
Datasheet
20,236In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 1,500


Silicon Labs I/O Controller Interface IC USB to Quad UART Bridge QFN64
Datasheet
3,552In Stock
Min.: 1
Mult.: 1


Silicon Labs I/O Controller Interface IC USB to Quad UART Bridge QFN64
Datasheet
7,486In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 2,500


Silicon Labs I/O Controller Interface IC HID USB to UART bridge
Datasheet
7,687In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 1,500

Silicon Labs USB Interface IC HID USB to SMBUS Bridge QFN24
Datasheet
15,164In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 1,500

Silicon Labs USB Interface IC USBXpress - USB to UART Bridge QFN20
Datasheet
40,308In Stock
Min.: 1
Mult.: 1

Silicon Labs USB Interface IC USBXpress - USB to UART Bridge QFN24
Datasheet
19,837In Stock
Min.: 1
Mult.: 1

Silicon Labs USB Interface IC USBXpress - USB to UART Bridge QFN28
Datasheet
15,116In Stock
Min.: 1
Mult.: 1

Silicon Labs USB Interface IC USBXpress - USB to UART Bridge QFN20
Datasheet
43,903In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 1,500

Silicon Labs USB Interface IC USBXpress - USB to UART Bridge QFN24
Datasheet
6,115In Stock
13,992Expected 2026-03-06
MouseReel Available
Min.: 1
Mult.: 1
Reel: 1,500

Silicon Labs USB Interface IC USBXpress - USB to UART Bridge QFN28
Datasheet
27,770In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 1,500

Silicon Labs I/O Controller Interface IC USB to UART Bridge QFN28
Datasheet
1,082In Stock
Min.: 1
Mult.: 1

Silicon Labs I/O Controller Interface IC USB to UART Bridge QFN28
Datasheet
326In Stock
1,400Expected 2026-03-06
MouseReel Available
Min.: 1
Mult.: 1
Reel: 1,500

Silicon Labs I/O Controller Interface IC HID USB to UART Bridge QFN28
Datasheet
1,172In Stock
Min.: 1
Mult.: 1


Silicon Labs I/O Controller Interface IC HID USB to UART bridge
Datasheet
3,564In Stock
Min.: 1
Mult.: 1
Reel: 1,500

Silicon Labs I/O Controller Interface IC USB to UART Bridge QFN24
Datasheet
9,000On Order
MouseReel Available
Min.: 1
Mult.: 1
Reel: 1,500

Silicon Labs I/O Controller Interface IC USB to UART Bridge QFN24
Datasheet
1,907Expected 2026-07-03
Min.: 1
Mult.: 1

Silicon Labs USB Interface IC USB to UART Bridge QFN28
Datasheet
Non-Stocked Lead-Time 12 Weeks
Min.: 1,533
Mult.: 1,533