MAX7311AUG+T

MAX7311AUG+T is a 2-wire-interfaced 16-Bit I/O port expander with interrupt and hot-insertion protection. The MAX7311 2-wire-interfaced expander provides 16-bit parallel input/output (I/O) port expansion for SMBus™ and I2C™ applications. The MAX7311 consists of input port registers, output port registers, polarity inversion registers, configuration registers, a bus timeout register, and an I2C-compatible serial interface logic compatible with SMBus. The system host can invert the MAX7311 input data by writing to the active-high polarity inversion register. The system host can enable or disable bus timeout by writing to the bus timeout register. Any of the 16 I/O ports can be configured as an input or output. A power-on reset (POR) initializes the 16 I/Os as inputs. Three address select pins configure one of 64 server ID addresses. The MAX7311 supports hot insertion.

• 400Kbps I2C-compatible serial interface
• 2V to 5.5V operation
• 5V overvoltage tolerant I/Os
• 16 I/O pins that default to inputs on power-up
• 100kohm pullup on each I/O
• Bus timeout for lock-up-free operation
• 64 server ID addresses available
• Low standby current (2.9µA typ)
• Polarity inversion
• Available in 24 pin TSSOP package

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