MAX7326
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MAX7326

I²C Port Expander with 12 Push-Pull Outputs and Four Inputs

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Best Suited for Monitoring Transient Changes,
Generating Control Signals, and Driving LEDs

Info: : PRODUCTION tooltip
Info: : PRODUCTION tooltip
Part Details
Part Models 2
1ku List Price Starting From $2.29
Features
  • 400kHz I²C Serial Interface
  • +1.71V to +5.5V Operating Voltage
  • 12 Push-Pull Output Ports, Rated at 20mA Sink Current
  • Four Input Ports, Overvoltage Protected to +6V
  • Transient Changes are Latched, Allowing Detection Between Read Operations
  • Active-Low INT Output Alerts Changes on Inputs
  • AD0 and AD2 Inputs Select from 16 Slave Addresses
  • Low 0.6µA (typ) Standby Current
  • -40°C to +125°C Temperature Range
Additional Details
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The MAX7326, a 2-wire serial-interfaced peripheral, features 12 push-pull outputs and four input ports with selectable internal pullups and transition detection. Ports are overvoltage protected to +6V, independent of supply voltage.

The inputs are continuously monitored for state changes (transition detection). State changes are indicated by the open-drain, +6V-tolerant active-low INT output. The interrupt is latched, detecting transient changes. When the MAX7326 is subsequently accessed through the serial interface, any pending interrupt is cleared. The 12 push-pull outputs are rated to sink 20mA and are capable of driving LEDs. The active-low RST input clears the serial interface, terminating any I²C communication to or from the MAX7326.

The MAX7326 uses two address inputs with four-level logic to allow 16 I²C slave addresses. The slave address also enables or disables internal 40kΩ pullups in groups of two ports.

The MAX7326 is one device in a family of pin-compatible port expanders with a choice of input ports, open-drain I/O ports, and push-pull output ports.

The MAX7326 is available in 24-pin QSOP and TQFN packages, and it is specified over the -40°C to +125°C automotive temperature range.

Applications

  • Cell Phones
  • Notebooks
  • SAN/NAS
  • Satellite Radio
  • Servers
Part Models 2
1ku List Price Starting From $2.29

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Documentation

Documentation

Part Model Pin/Package Drawing Documentation CAD Symbols, Footprints, and 3D Models
MAX7326AEG+
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MAX7326ATG+
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Part Models

Product Lifecycle

PCN

Jan 9, 2015

- 1481

WAFER FAB

MAX7326AEG+

PRODUCTION

MAX7326ATG+

LAST TIME BUY

Filter by Model

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Reset Filters

Part Models

Product Lifecycle

PCN

Jan 9, 2015

- 1481

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WAFER FAB

MAX7326AEG+

PRODUCTION

MAX7326ATG+

LAST TIME BUY

Software & Part Ecosystem

Software & Part Ecosystem

Evaluation Kit

Evaluation Kits 2

MAX7326EVKIT

Evaluation Kit/Evaluation System for the MAX7326

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MAX7326EVKIT

Evaluation Kit/Evaluation System for the MAX7326

Evaluation Kit/Evaluation System for the MAX7326

Features and Benefits

  • 400kHz, 2-Wire Serial Interface
  • 1.71V to 5.5V Operation
  • 12 Push-Pull Output Ports, Rated at 20mA Sink Current
  • 4 Input Ports with Maskable Latching-Transition Detection
  • Input Ports are Overvoltage Protected to 6V
  • Proven PCB Layout
  • Windows 2000/XP/Vista (32-Bit)-Compatible Software
  • Fully Assembled and Tested
  • EV System: USB PC Connection

Product Detail

The MAX7326 evaluation kit (EV kit) is a fully assembled and tested printed-circuit board (PCB) that demonstrates the capabilities of the MAX7326 I²C port expander with 12 push-pull outputs and 4 inputs. The MAX7326 EV kit also includes Windows® 2000/XP/Vista-compatible software that provides a simple graphical user interface (GUI) for exercising the MAX7326's features.

The MAX7326 evaluation system (EV system) includes a MAX7326 EV kit and a Maxim CMAXQUSB serial-interface board. The CMAXQUSB board connects to a PC's USB port and allows the transfer of I²C commands to the MAX7326 EV kit.

The EV kit comes with the MAX7326ATG+ installed.

Applications

  • Automotive
  • Cell Phones
  • Notebooks
  • SAN/NAS
  • Satellite Radio
  • Servers

MAX7326EVCMAXQU

Evaluation Kit/Evaluation System for the MAX7326

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MAX7326EVCMAXQU

Evaluation Kit/Evaluation System for the MAX7326

Evaluation Kit/Evaluation System for the MAX7326

Features and Benefits

  • 400kHz, 2-Wire Serial Interface
  • 1.71V to 5.5V Operation
  • 12 Push-Pull Output Ports, Rated at 20mA Sink Current
  • 4 Input Ports with Maskable Latching-Transition Detection
  • Input Ports are Overvoltage Protected to 6V
  • Proven PCB Layout
  • Windows 2000/XP/Vista (32-Bit)-Compatible Software
  • Fully Assembled and Tested
  • EV System: USB PC Connection

Product Detail

The MAX7326 evaluation kit (EV kit) is a fully assembled and tested printed-circuit board (PCB) that demonstrates the capabilities of the MAX7326 I²C port expander with 12 push-pull outputs and 4 inputs. The MAX7326 EV kit also includes Windows® 2000/XP/Vista-compatible software that provides a simple graphical user interface (GUI) for exercising the MAX7326's features.

The MAX7326 evaluation system (EV system) includes a MAX7326 EV kit and a Maxim CMAXQUSB serial-interface board. The CMAXQUSB board connects to a PC's USB port and allows the transfer of I²C commands to the MAX7326 EV kit.

The EV kit comes with the MAX7326ATG+ installed.

Applications

  • Automotive
  • Cell Phones
  • Notebooks
  • SAN/NAS
  • Satellite Radio
  • Servers

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