The MikroElektronika an Expand 13 Click is a compact add-on board that contains a multi-port I/O expander. This board features the PI4IOE5V96248, a 48-bit general-purpose I/O expander providing remote I/O expansion for most MCU’s families from Diodes Incorporated. The PI4IOE5V96248 comes in a 6-channel configuration and allows easy addition of I/O through a standard I2C serial interface. It has a built-in level shifting feature that makes it highly flexible in power supply systems where communication between incompatible I/O voltages is required. It also contains a reset and interrupts feature that informs the MCU of incoming data on its ports without communicating via the serial bus. This Click board provides a simple solution when additional I/Os are needed while keeping interconnections to a minimum in system monitoring applications, industrial controllers, portable equipment, and many more.

Remote I/O pins that default to inputs at Power-Up
compliant with the I2C-bus Fast and Standard modes
5V tolerant I/Os
25mA sink capability for directly driving LEDs
programmable slave addresses