USB UART 2 Click

Product Code: MIKROE-2674

USB UART 2 Click
USB UART 2 Click
USB UART 2 Click
USB UART 2 Click

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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.

Use the USB UART 2 click for isolating USB communication, and preventing voltage spikes from destroying sensitive equipment.

ADUM4160BRWZ features

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. 

How the click works

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.


Type USB
Applications USB peripheral isolation, isolated USB hub, etc.
On-board modules ADUM4160BRWZ USB port isolator, FT232 IC
Interface UART,GPIO
Input Voltage 3.3V or 5V
Compatibility mikroBUS
Click board size M (42.9 x 25.4 mm)

Pinout diagram

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).

Notes Pin mikroBUS logo.png Pin Notes
  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
  NC 5 MISO SCL 12 NC  
  NC 6 MOSI SDA 11 NC  
Power supply +3.3V 7 3.3V 5V 10 +5V Power supply
Ground GND 8 GND GND 9 GND Ground

Jumpers and settings

Designator Name Default Position Default Option Description
JP1 PWR.SEL. Left 3V3 Power Supply Voltage Selection 3V3/5V, left position 3V3, right position 5V

LEDs and buttons

Designator Name Type Description
TX   LED Shows UART TX activity
RX   LED Shows UART RX activity


 mikroBUS™ Standard specification 
 ADUM4160BRWZ datasheet

 USB UART 2 click schematic

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Tags: USB, UART, 2, Click, MIKROE, 2674,

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