Key facts
- Brand
- Maxim
- Model
- MAX7311
- Industry
- Industrial
- Documents
- 2
- Languages
- EN
- Last added
- 2012-04-05
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Maxim MAX7311 2-Wire I/O Port Expander Datasheet
The MAX7311 provides 16 parallel I/O pins that can be individually configured as inputs or outputs via an SMBus™/I²C‑compatible serial interface. It includes features such as polarity inversion, bus timeout, open‑drain interrupt output, and supports hot insertion. Three address pins allow selection of one of 64 slave IDs, making it suitable for server, RAID, industrial control, medical, and PLC applications.
The device operates from 2 V to 5.5 V, with a standby current as low as 2.9 pA and a typical pull‑up of 100 kΩ on each I/O. It is offered in 24‑pin SO, SSOP, TSSOP, and thin QFN packages and is qualified for the –40 °C to +125 °C automotive temperature range.
Maxim MAX7311 specifications
| Supply Voltage | 2 V to 5.5 V |
|---|---|
| Operating Temperature Range | -40 °C to +125 °C |
| Number of I/O Pins | 16 |
| Interrupt Output | Open‑Drain |
| I²C Clock Frequency | 400 kHz |
| Slave ID Addresses | 64 |
| Standby Current | 2.9 pA typ |
| Pull‑up Resistor per I/O | 100 kΩ |
| Package Options | 24‑pin SO, SSOP, TSSOP, thin QFN |
All Maxim MAX7311 documents by type
Ratings, dimensions and ordering codes, for selection and design work.
Questions answered in these manuals
What is the maximum operating temperature of the MAX7311?
The device is specified for operation up to +125 °C.
How many I/O pins does the MAX7311 provide?
It provides 16 I/O pins that default to inputs on power‑up.
What supply voltage range does the MAX7311 support?
The MAX7311 operates with a supply voltage from 2 V up to 5.5 V.
How many I/O pins are available on the MAX7311?
The device provides 16 parallel I/O pins.