MAX7301AAI+

MAX7301AAI+ is a compact, serial-interfaced I/O expander. It provides microprocessors with upto 28 ports. Each port is individually user configurable to either a logic input or logic output. Each port can be configured either as a push-pull logic output capable of sinking 10mA and sourcing 4.5mA, or a Schmitt logic input with optional internal pullup. Seven ports feature configurable transition detection logic, which generates an interrupt upon change of port logic level. It is controlled through an SPI-compatible 4-wire serial interface. It is used in applications such as white goods, gaming machines, industrial controllers, system monitoring.

• High-speed, 26MHz, SPI-/QSPI™-/MICROWIRE®- compatible serial interface
• 2.25V to 5.5V operation, logic transition detection for seven I/O ports
• Low power consumption reduces power-supply requirements
• 11μA maximum shutdown current
• Input leakage current is ±1nA typical at (V+ = 2.5V to 5.5V)
• Port sink current is 10mA typical at (VPORT = 0.6V)
• Output data propagation delay is 21ns maximum at (V+ = 2.5V to 5.5V)
• CLK pulse-width (high) is 19ns minimum at (V+ = 2.5V to 5.5V)
• Output short-circuit current is 11mA typical at (V+ = 2.5V to 5.5V)
• Operating temperature range from -40°C to +125°C, 28-lead SSOP package

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