Eight output-only I/Os on I²C — what you get
The MAX7320AEE+ from Maxim Integrated is an I²C-controlled port expander that gives you eight output-only I/O pins. It is not a bidirectional GPIO bank — every pin drives out, nothing reads in. That makes it a clean fit for turning on LEDs, latching relays, setting configuration straps, or driving logic-level signals where the host microcontroller has run out of pins.
Temperature range and output drive — where it fits
The outputs can be configured as open-drain or push-pull, which matters when you are mixing voltage domains on the same bus — open-drain lets multiple expanders share a pull-up without contention.
The 0.154-inch (3.90 mm) width SSOP-style footprint is common and easy to route — no fine-pitch tricks. It ships in a tube, not tape-and-reel, so plan for manual placement or a tube feeder if you are running high volume.
No interrupt — plan your polling
This expander does not have an interrupt output pin. The host controller must poll the device over I²C to read the output state or detect a change. For applications where the outputs are set once and left alone (like configuration latches), polling overhead is negligible. If you need edge-triggered notification from the expander, look at a sibling with an interrupt pin — the MAX7320 family includes variants that offer it.