Datasheet for the MAX7319, an 8-port I2C port expander with latching transient detection, +6V overvoltage protection, and selectable pull-ups.
The MAX7319 is an 8-port I2C port expander featuring latching transient detection on all input ports, +6V overvoltage protection, and selectable internal pull-up resistors. It supports 16 I2C slave addresses via address inputs AD0 and AD2 and includes an interrupt output (INT) to signal changes on selected inputs. The device supports hot insertion and maintains high impedance on all pins when powered down, allowing it to withstand up to +6V on input and serial pins. This manual is written in Chinese.
| Operating Supply Voltage | 1.71V to 5.5V |
|---|---|
| Operating Temperature Range | -40°C to +125°C |
| Number of Input Ports | 8 |
| I2C Clock Frequency | 400 kHz |
| Input Overvoltage Protection | +6V |
| Package Types | 16-Pin QSOP, 16-Pin TQFN |
The typical standby current is 0.6 µA when the interface is idle.
It supports 16 I2C slave addresses, selectable via the AD0 and AD2 inputs.