MAX7312
Info: : PRODUCTION
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MAX7312

2-Wire-Interfaced 16-Bit I/O Port Expander with Interrupt and Hot-Insertion Protection

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Info: : PRODUCTION tooltip
Info: : PRODUCTION tooltip
Part Details
Part Models 8
1ku List Price Starting From $3.09
Features
  • 400kbps I²C-Compatible Serial Interface
  • 2V to 5.5V Operation
  • 5V Overvoltage Tolerant I/Os
  • Supports Hot Insertion
  • 16 I/O Pins that Default to Inputs on Power-Up
  • Open-Drain Interrupt Output (Active-Low INT)
  • Bus Timeout for Lock-Up-Free Operation
  • Noise Filter on SCL/SDA Inputs
  • 64 User-Selectable Slave ID Addresses
  • Low Standby Current (2.9µA typ)
  • Polarity Inversion
  • 4mm x 4mm, 0.8mm Thin QFN Package
  • -40°C to +125°C Operation
Additional Details
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The MAX7312 2-wire-interfaced expander provides 16-bit parallel input/output (I/O) port expansion in SMBus™ and I²C applications. The MAX7312 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 MAX7312 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 an output. A power-on reset (POR) initializes the 16 I/Os as inputs. Three address select pins configure the part to one of 64 slave ID addresses.

The MAX7312 supports hot insertion. All port pins, the active-low INT output, SDA, SCL, and the slave address inputs AD0-2 remain high impedance in power-down (Vt = 0V) up to 6V.

The MAX7312 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 with integrated 100kΩ pullup resistors, refer to the MAX7311 data sheet.

Applications

  • Instrumentation and Test Measurement Networking
  • Medical Equipment
  • RAID Systems
  • Servers/Blades
Part Models 8
1ku List Price Starting From $3.09

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Documentation

Documentation

Part Model Pin/Package Drawing Documentation CAD Symbols, Footprints, and 3D Models
MAX7312AAG+
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MAX7312AAG+T
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MAX7312ATG+
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MAX7312ATG+T
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MAX7312AUG+
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MAX7312AUG+T
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MAX7312AWG+
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MAX7312AWG+T
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Filter by Model

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Product Lifecycle

PCN

Jan 9, 2015

- 1481

WAFER FAB

MAX7312AAG+

PRODUCTION

MAX7312AAG+T

PRODUCTION

MAX7312ATG+

PRODUCTION

MAX7312ATG+T

PRODUCTION

MAX7312AUG+

PRODUCTION

MAX7312AUG+T

PRODUCTION

MAX7312AWG+

PRODUCTION

MAX7312AWG+T

PRODUCTION

Jun 20, 2016

- 1612

ASSEMBLY

MAX7312ATG+

PRODUCTION

MAX7312ATG+T

PRODUCTION

Filter by Model

reset

Reset Filters

Part Models

Product Lifecycle

PCN

Jan 9, 2015

- 1481

arrow down

WAFER FAB

MAX7312AAG+

PRODUCTION

MAX7312AAG+T

PRODUCTION

MAX7312ATG+

PRODUCTION

MAX7312ATG+T

PRODUCTION

MAX7312AUG+

PRODUCTION

MAX7312AUG+T

PRODUCTION

MAX7312AWG+

PRODUCTION

MAX7312AWG+T

PRODUCTION

Jun 20, 2016

- 1612

arrow down

ASSEMBLY

MAX7312ATG+

PRODUCTION

MAX7312ATG+T

PRODUCTION

Software & Part Ecosystem

Software & Part Ecosystem

Evaluation Kit

Evaluation Kits 1

MAX7312EVKIT

Evaluation Kit for the MAX7312

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MAX7312EVKIT

Evaluation Kit for the MAX7312

Evaluation Kit for the MAX7312

Features and Benefits

  • Windows 2000/XP/Vista (32-Bit)-Compatible Evaluation Software
  • USB-PC Connection (Cable Included)
  • USB Powered
  • Configurable Input or Push-Pull Output
  • Proven PCB Layout
  • Fully Assembled and Tested
  • Lead-Free and RoHS-Compliant
  • On-Board Pushbutton Switches
  • On-Board LEDs for Demonstrating the Push-Pull Capabilities of the GPIOs

Product Detail

The MAX7312 evaluation kit (EV kit) provides a proven design to evaluate the MAX7312 I²C-compatible 16-bit I/O port expander, with each port configurable as input or push-pull output. The EV kit also includes Windows 2000/XP/Vista®-compatible software that provides a simple graphical user interface (GUI) for exercising the features of the MAX7312. The MAX7312 EV kit printed-circuit board (PCB) comes with a MAX7312ATG+ installed.

Applications

  • Instrumentation and Test Measurement Networking
  • Medical Equipment
  • RAID Systems
  • Servers/Blades

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