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.

Results: 12
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Description Datasheet Availability Pricing (USD) Filter the results in the table by unit price based on your quantity.
Qty. RoHS ECAD Model Mounting Style
Package/Case
Series
Product
Interface Type
Number of I/Os
Supply Voltage - Max
Supply Voltage - Min
Minimum Operating Temperature
Maximum Operating Temperature
Packaging
Silicon Labs I/O Controller Interface IC HID USB to UART Bridge QFN24
Datasheet
26,166In Stock
Min.: 1
Mult.: 1

SMD/SMT QFN-24 CP2110 3.3 V 3.3 V - 40 C + 85 C Tube
Silicon Labs I/O Controller Interface IC USB to Dual UART Bridge QFN24
Datasheet
12,666In Stock
21,000Expected 12/10/2026
MouseReel Available
Min.: 1
Mult.: 1
: 1,500

SMD/SMT QFN-24 CP2105 USB to Dual UART Bridges UART 5 I/O 3.6 V 3 V - 40 C + 85 C Reel, Cut Tape, MouseReel

Silicon Labs I/O Controller Interface IC USB to Quad UART Bridge QFN64
Datasheet
2,212In Stock
Min.: 1
Mult.: 1

SMD/SMT QFN-64 CP2108 I/O Controllers Serial 3.6 V 3 V - 40 C + 85 C Tray

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

SMD/SMT QFN-64 CP2108 Reel, Cut Tape, MouseReel
Silicon Labs I/O Controller Interface IC USB to UART Bridge QFN28
Datasheet
2,320In Stock
4,500Expected 30/10/2026
MouseReel Available
Min.: 1
Mult.: 1
: 1,500

SMD/SMT MLP-28 CP2103 3.6 V 3.6 V - 55 C + 125 C Reel, Cut Tape, MouseReel
Silicon Labs I/O Controller Interface IC USB to UART Bridge QFN24
Datasheet
3,852In Stock
Min.: 1
Mult.: 1

SMD/SMT QFN-24 CP2104 3.3 V 3.3 V - 40 C + 85 C Tube
Silicon Labs I/O Controller Interface IC USB to Dual UART Bridge QFN24
Datasheet
2,673In Stock
5,693Expected 11/08/2026
Min.: 1
Mult.: 1

SMD/SMT QFN-24 CP2105 3.3 V 3.3 V - 40 C + 85 C Tube

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

SMD/SMT QFN-24 CP2110 HID USB to UART Bridges UART 10 I/O 3.6 V 3 V - 40 C + 85 C Reel, Cut Tape, MouseReel
Silicon Labs I/O Controller Interface IC HID USB to UART Bridge QFN28
Datasheet
669In Stock
Min.: 1
Mult.: 1

SMD/SMT QFN-28 CP2110 3.6 V 3 V - 40 C + 85 C Tube

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

SMD/SMT QFN-28 CP2110 HID USB to UART Bridges UART 10 I/O 3.6 V 3 V - 40 C + 85 C Reel, Cut Tape
Silicon Labs I/O Controller Interface IC USB to UART Bridge QFN24
Datasheet
7,456In Stock
15,000Expected 11/08/2026
MouseReel Available
Min.: 1
Mult.: 1
: 1,500

SMD/SMT QFN-24 CP2104 USB to UART Bridges UART 4 I/O 3.6 V 3 V - 40 C + 85 C Reel, Cut Tape, MouseReel
Silicon Labs I/O Controller Interface IC USB to UART Bridge QFN28
Datasheet
12,007On Order
Min.: 1
Mult.: 1

SMD/SMT MLP-28 CP2103 3.6 V 3.6 V - 55 C + 125 C Tube