Key facts
- Brand
- Maxim
- Model
- MAX7324
- Industry
- Industrial
- Documents
- 2
- Languages
- EN
- Last added
- 2012-05-08
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Maxim MAX7324 12‑bit I2C Port Expander Datasheet
The MAX7324 is a 2‑wire serial‑interfaced port expander offering eight push‑pull outputs and eight CMOS inputs. Each input includes selectable internal pull‑ups, over‑voltage protection to +6 V, and transition detection with an interrupt output. The device supports two address pins (ADO, AD2) providing up to 16 I²C slave addresses and selectable pull‑up groups.
The datasheet provides absolute maximum ratings, DC electrical characteristics, timing parameters, and package information for QSOP and TQFN options. Typical applications include cell phones, notebooks, automotive systems, and servers where compact I/O expansion is required.
Maxim MAX7324 specifications
| I²C Serial Clock Frequency | 400 kHz |
|---|---|
| Push‑Pull Output Current | 20 mA sink |
| Operating Temperature Range | -40 °C to +125 °C |
All Maxim MAX7324 documents by type
Ratings, dimensions and ordering codes, for selection and design work.
Questions answered in these manuals
How is the I²C slave address selected for the MAX7324?
The address is set by the two address inputs ADO and AD2, providing four‑level logic for up to 16 possible I²C slave addresses.
What current can the push‑pull outputs sink?
Each push‑pull output can sink up to 20 mA and is suitable for driving LEDs.
What is the maximum sink current for each output pin?
Each push‑pull output can sink up to 20 mA.
Are the input ports protected against over‑voltage?
Yes, the input ports are over‑voltage protected up to +6 V.