ATUSB-I2C-AUTO-PCB

USB-I2C-AUTO-PCB Information Sheet USB-I2C-AUTO-PCB Information Sheet Using the USB-I2C-AUTO-PCB Using the USB-I2C-AUTO-PCB This product provides an interface to convert I2C and debug signals to USB and communicate with the PC-based applications. This product is designed to be used with Microchip maXTouch® touchscreen controllers. This product provides an interface to convert I2C and debug signals to USB and communicate with the PC-based applications. This product is designed to be used with Microchip maXTouch® touchscreen controllers. The USB-I2C-AUTO-PCB automatically adapts the voltage levels for SDA, SCL, /CHG, /RESET, DBG_CLK, and DBG_DATA signals depending on the connected maXTouch device. The valid VDD levels for these signals are between 1.6V and 3.6V. The USB-I2C-AUTO-PCB automatically adapts the voltage levels for SDA, SCL, /CHG, /RESET, DBG_CLK, and DBG_DATA signals depending on the connected maXTouch device. The valid VDD levels for these signals are between 1.6V and 3.6V. The communication interface between the bridge IC and the target can be either via the level shifter ICs or bypassing them: The communication interface between the bridge IC and the target can be either via the level shifter ICs or bypassing them: Using Level shifter Using Level shifter • VDD_BRIDGE must be 5V • R6 + R7 are placed • R8 + R13 are DNF • LK3, LK5, LK6, LK7, LK8, LK9 are OPEN Bypassing Level shifter • VDD_BRIDGE must be 5V • R6 + R7 are placed • R8 + R13 are DNF • LK3, LK5, LK6, LK7, LK8, LK9 are OPEN Bypassing Level shifter • • • • VDD_BRIDGE must be 3V R6 + R7 are DNF R8 + R13 are placed LK3, LK5, LK6, LK7, LK8, LK9 are CLOSED • • • • VDD_BRIDGE must be 3V R6 + R7 are DNF R8 + R13 are placed LK3, LK5, LK6, LK7, LK8, LK9 are CLOSED In either case, power for the VDD rail must be supplied from the host. The USB-I2C-AUTO-PCB is not designed to supply power to a host system. In either case, power for the VDD rail must be supplied from the host. The USB-I2C-AUTO-PCB is not designed to supply power to a host system. Microchip Technology Inc. • 2355 West Chandler Blvd. • Chandler, AZ 85224-6199 www.microchip.com Microchip Technology Inc. • 2355 West Chandler Blvd. • Chandler, AZ 85224-6199 www.microchip.com The Microchip name and logo and the Microchip logo are registered trademarks of Microchip Technology Inc. in the U.S.A. and other countries. maXTouch is a registered trademark of Microchip Technology Inc. in the U.S. A. and other countries. © 2017, Microchip Technology Incorporated. All Rights Reserved. DS5002579A The Microchip name and logo and the Microchip logo are registered trademarks of Microchip Technology Inc. in the U.S.A. and other countries. maXTouch is a registered trademark of Microchip Technology Inc. in the U.S. A. and other countries. © 2017, Microchip Technology Incorporated. All Rights Reserved. DS5002579A