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Product Detailed Parameters
- Description：IC XPNDR 400KHZ I2C 16QSOP
- Series：-
- Mfr：Analog Devices Inc./Maxim Integrated
- Package：Tape & Reel (TR)
- Number of I/O：4
- Interface：I2C
- Interrupt Output：Yes
- Features：POR
- Output Type：-
- Current - Output Source/Sink：20mA
- Clock Frequency：400 kHz
- Voltage - Supply：1.7V ~ 5.5V
- Operating Temperature：-40°C ~ 125°C
- Mounting Type：Surface Mount
- Package / Case：16-SSOP (0.154", 3.90mm Width)
- Supplier Device Package：16-QSOP
- Grade：-
- Qualification：-
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Overview
The MAX7322AEE+T is an I2C port expander featuring four push-pull outputs and four input ports with selectable internal pullups. It operates from +1.71V to +5.5V, supports a 400kHz serial interface, and provides latching transition detection with interrupt output. The device offers 16 selectable slave addresses via AD0 and AD2 inputs, overvoltage protection on inputs to +6V, and low standby current of 0.6µA typical. It is specified for the -40°C to +125°C automotive temperature range and housed in a 16-pin QSOP package.
Feature Summary
- Four push-pull output ports rated at 20mA sink current
- Four input ports with maskable, latching transition detection
- Input ports overvoltage protected to +6V
- Low 0.6µA typical standby current
Applications
- Cell Phones
- SAN/NAS
- Servers
- Notebooks
- Satellite Radio
Procurement Notes
Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm RoHS compliance and lead-free status as indicated by the '+' suffix. Ensure the specific QSOP-16 package matches your PCB footprint requirements before finalizing procurement orders.
Selection Notes
Select this part when requiring a mix of push-pull outputs and monitored inputs within a single I2C address space. Consider the 16-address capability for multi-device systems. Verify that the +6V input tolerance meets your system's voltage levels and that the -40°C to +125°C range satisfies environmental constraints.
Part Context
The MAX7322 belongs to the Maxim Integrated MAX73xx family of pin-compatible I2C port expanders. It complements variants like the MAX7320 (8 outputs) and MAX7321 (I/O). This specific model bridges the gap between pure output drivers and complex I/O expanders, offering dedicated transition detection for inputs while maintaining simple push-pull drive capabilities.
Replacement Considerations
Pin-compatible alternatives within the same family include the MAX7320, MAX7321, and MAX7323. Verify functional equivalence regarding input/output configuration and interrupt masking capabilities before substitution.
