Controllers

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Mfr Part #	Quantity Available	Price	Series	Package	Product Status	DigiKey Programmable	Protocol	Function	Interface	Standards	Voltage - Supply	Current - Supply	Operating Temperature	Package / Case	Supplier Device Package

FT234XD-R IC USB SERIAL BASIC UART 12DFN FTDI, Future Technology Devices International Ltd	13,728 In Stock	1 : ¥19.21000 Cut Tape (CT) 5,000 : ¥14.55833 Tape & Reel (TR)	-	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Active	Not Verified	USB	Bridge, USB to UART	UART	USB 2.0	2.97V ~ 5.5V	8mA	-40°C ~ 85°C	12-VFDFN Exposed Pad	12-DFN (3x3)
FT231XQ-R IC USB SERIAL FULL UART 20QFN FTDI, Future Technology Devices International Ltd	68,198 In Stock	1 : ¥19.89000 Cut Tape (CT) 5,000 : ¥14.98339 Tape & Reel (TR)	USBmadeEZ-UART, FT-X, X-Chip	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Active	Not Verified	USB	Bridge, USB to UART	UART	USB 2.0	3.3V ~ 5V	8mA	-40°C ~ 85°C	20-WFQFN Exposed Pad	20-QFN (4x4)
FT4222HQ-D-R IC BRIDGE USB TO I2C/SPI 32VQFN FTDI, Future Technology Devices International Ltd	26,712 In Stock	1 : ¥30.86000 Cut Tape (CT) 5,000 : ¥24.65353 Tape & Reel (TR)	-	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Active	Not Verified	USB	Bridge, USB to I2C/SPI	I2C, SPI	USB 2.0	1.8V, 2.5V, 3.3V, 5V	78mA	-40°C ~ 85°C	32-VFQFN Exposed Pad	32-VQFN (5x5)

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Controllers

Products in this family are used primarily to provide informatic connectivity between endpoints that employ differing communication protocols and/or signaling methods. Examples include devices that connect an I2C bus to a UART, USB to I2C, SPI, Ethernet, or UART, Ethernet MACs and PHYs, and others. Also included are devices used to establish multi-way connections using interfaces designed for point-to-point communications, such as USB hub controllers.