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Product Detailed Parameters
- Description：INTEGRATED CIRCUIT
- Series：-
- Mfr：Analog Devices Inc./Maxim Integrated
- Package：Tape & Reel (TR)
- Number of I/O：-
- Interface：-
- Interrupt Output：-
- Features：-
- Output Type：-
- Current - Output Source/Sink：-
- Clock Frequency：-
- Voltage - Supply：-
- Operating Temperature：-
- Mounting Type：-
- Package / Case：-
- Supplier Device Package：-
- Grade：-
- Qualification：-
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Overview
The MAX7320ATE+TGA8 is an I²C port expander featuring eight push-pull output ports. It operates within a supply voltage range of +1.71V to +5.5V and supports serial clock frequencies up to 400kHz. The device utilizes two address inputs (AD0, AD2) to configure one of sixteen slave addresses. Output power-up logic states are selectable in groups of four based on these address connections. The component includes an active-low RST input to clear the serial interface and terminate transactions. It is specified for operation across an extended temperature range from -40°C to +125°C.
Feature Summary
- Eight push-pull output ports with configurable power-up default states
- I²C serial interface supporting up to 400kHz clock frequency
- Sixteen selectable slave addresses via AD0 and AD2 inputs
- Active-low reset input to clear the serial interface
Applications
- Cell Phones/PDAs
- Satellite Radios
- Notebooks
- RAID Systems
- Servers
Procurement Notes
Verify the specific ordering suffix against official manufacturer documentation to confirm package type and RoHS compliance status. Ensure the component matches the required thermal and electrical specifications for the target application environment before procurement.
Selection Notes
Select this component when eight push-pull outputs are required without interrupt capabilities. Verify that the I²C address configuration using AD0 and AD2 meets system bus requirements. Confirm compatibility with the host controller's I²C voltage levels and timing constraints.
Part Context
The MAX7320 belongs to the MAX7319–MAX7329 family of pin-compatible port expanders. It serves as the output-only variant within this series, distinguished by its push-pull architecture compared to open-drain or input-focused counterparts like the MAX7319 or MAX7321.
Replacement Considerations
The MAX7328 and MAX7329 are documented as second sources to the PCF8574 and PCF8574A respectively, but direct functional substitution requires verification of output drive characteristics and I²C address mapping differences.
