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MAX7311

Maxim Integrated Products
Part Number MAX7311
Manufacturer Maxim Integrated Products
Description 2-Wire-Interfaced 16-Bit I/O Port Expander
Published Oct 4, 2007
Detailed Description www.DataSheet4U.com 19-2747; Rev 4; 4/05 2-Wire-Interfaced 16-Bit I/O Port Expander with Interrupt and Hot-Insertion Pr...
Datasheet PDF File MAX7311 PDF File

MAX7311
MAX7311

Overview
www.
DataSheet4U.
com 19-2747; Rev 4; 4/05 2-Wire-Interfaced 16-Bit I/O Port Expander with Interrupt and Hot-Insertion Protection General Description 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 master can invert the MAX7311 input data by writing to the active-high polarity inversion register.
The system master 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 slave ID addresses.
The MAX7311 supports hot insertion.
All port pins, the INT output, SDA, SCL and the slave address inputs AD0–2 remain high impedance in power down (V+ = 0V) with up to 6V asserted upon them.
The MAX7311 is available in 24-pin SO, SSOP, TSSOP, and thin QFN packages and is specified over the -40°C to +125°C automotive temperature range.
For applications requiring I/Os without pullup resistors, refer to the MAX7312 data sheet.
♦ 2V to 5.
5V Operation ♦ 5V Overvoltage Tolerant I/Os ♦ Supports Hot Insertion ♦ 16 I/O Pins that Default to Inputs on Power-Up ♦ 100kΩ Pullup on Each I/O ♦ Open-Drain Interrupt Output (INT) ♦ Bus Timeout for Lock-Up-Free Operation ♦ Noise Filter on SCL / SDA Inputs ♦ 64 Slave ID Addresses Available ♦ Low Standby Current (2.
9µA typ) ♦ Polarity Inversion ♦ 4mm ✕ 4mm, 0.
8mm Thin QFN Package ♦ -40°C to +125°C Operation Features ♦ 400kbps I2C-Compatible Serial Interface MAX7311 Ordering Information PART TEMP RANGE PIN-PACKAGE PKG CODE — — T2444-4 — Applications Servers RAID Systems Industrial Control Medical Equipment PLCs Instrumentation and Test Measurement MAX7311AWG -40...


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