USB UART 2 click provides USB isolation and carries the ADUM4160BRWZ USB port isolator.
The click is designed to run on either 3.3V or 5V power supply. It communicates with the target microcontroller over UART interface, with additional functionality provided the following pins on the mikroBUS™ line: RST, CS, PWM, INT.
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ADUM4160BRWZ is a USB port isolator, based on Analog Devices, Inc., iCoupler® technology. Combining high-speed CMOS and monolithic air core transformer technology, these isolation components provide outstanding performance characteristics and are easily integrated with low and full speed USB-compatible peripheral devices.
The ADUM4160BRWZ uses the edge detection based iCoupler technology in conjunction with internal logic to implement a transparent, easily configured, upstream facing port isolator. Isolating an upstream facing port provides several advantages in simplicity, power management, and robust operation.
The click takes power both from the development system and from the USB, so both sides of the isolator can function.
The FT232RL chip on board to act as a USB-UART converter.
|Applications||USB peripheral isolation, isolated USB hub, etc.|
|On-board modules||ADUM4160BRWZ USB port isolator, FT232 IC|
|Power Supply||3.3V or 5V|
|Click board size||M (42.9 x 25.4 mm)|
This table shows how the pinout on USB UART 2 click corresponds to the pinout on the mikroBUS™ socket (the latter shown in the two middle columns).
|NC||1||AN||PWM||16||CBUS3||Factory PWR EN|
|Clear to send||CTS||2||RST||INT||15||RTS||Request to send|
|Factory Sleep||CBUS4||3||CS||TX||14||TXD||UART transmit data|
|NC||4||SCK||RX||13||RXD||UART receive data|
|Power supply||+3.3V||7||3.3V||5V||10||+5V||Power supply|
|Designator||Name||Default Position||Default Option||Description|
|JP1||PWR.SEL.||Left||3V3||Power Supply Voltage Selection 3V3/5V, left position 3V3, right position 5V|
|TX||LED||Shows UART TX activity|
|RX||LED||Shows UART RX activity|