EVAL-LTC4306-PMDZ

EVAL-LTC4306-PMDZ features LTC4306, a 4-channel, 2-wire I2C bus and SMBus compatible multiplexer having bus buffers that provide capacitive isolation between the upstream bus and downstream buses. This evaluation board provides 6-pin PMOD connectors for upstream and downstream connection for compatibility with PMOD form factors such as EVAL-ADICUP3029, an Arduino based Wireless Development Platform for Internet of Things applications based on an ultra-low power ARM Cortex-M3 processor. Pmod™ is the Digilent defined standard of Peripheral Modules, small I/O interface boards that offer an ideal way to extend the capabilities of programmable logic and microcontroller boards. They allow sensitive signal conditioning circuits and high-power drive circuits to be placed where they are most effective - near sensors and actuators.

• Supports four selectable downstream I²C buses for flexible bus routing and system expansion
• Downstream buses support independent pull-up voltages from 2.7V to 5.5V for level shifting
• Programmable timeout disconnects downstream buses when an I²C bus remains stuck low
• Rise-time accelerators reduce signal rise time and improve I²C communication over longer cables
• Bus buffering isolates upstream/downstream buses reducing capacitance and improving signal integrity
• Hot-swap protection prevents I²C bus corruption during live insertion or removal from backplanes
• Dedicated ALERT-N inputs on downstream buses provide efficient fault detection and reporting
• Two GPIO pins support input, open-drain output, and push-pull output configurations for control
• Three address pins provide 27 distinct I²C addresses for flexible device addressing and nesting