MAX7322
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MAX7322

I²C Port Expander with 4 Push-Pull Outputs and 4 Inputs

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Low Operating Supply Voltage I²C Port Expander with 4 Push-Pull Outputs and 4 Input Ports

Info: : PRODUCTION tooltip
Info: : PRODUCTION tooltip
Part Details
Part Models 4
1ku List Price Starting From $2.20
Features
  • 400kHz I²C Serial Interface
  • +1.71V to +5.5V Operation Voltage
  • 4 Push-Pull Output Ports Rated at 20mA Sink Current
  • 4 Input Ports with Maskable, Latching Transition Detection
  • Input Ports are Overvoltage Protected to +6V
  • Transient Changes are Latched, Allowing Detection Between Read Operations
  • Active-Low INT Output Alerts Change on Any Selection of Inputs
  • AD0 and AD2 Inputs Select from 16 Slave Addresses
  • Low 0.6µA (typ) Standby Current
  • -40°C to +125°C Operating Temperature Range
Additional Details
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The MAX7322 2-wire serial-interfaced peripheral features four push-pull outputs and four input ports with selectable internal pullups. Input ports are overvoltage protected to +6V and feature transition detection with interrupt output.

The four input ports are continuously monitored for state changes (transition detection). The interrupt is latched, allowing detection of transient changes. Any combination of inputs can be selected using the interrupt mask to assert the open-drain active-low INT output. When the MAX7322 is subsequently accessed through the serial interface, any pending interrupt is cleared.

The four 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 MAX7322.

The MAX7322 uses two address inputs with four-level logic to allow 16 I²C slave addresses. The slave address also sets the power-up default logic state for the four output ports, and enables or disables internal 40kΩ pullups for the input ports.

The MAX7322 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 (see Table 1 in the full data sheet).

The MAX7322 is available in 16-pin QSOP and TQFN packages, and is specified over the -40°C to +125°C automotive temperature range.

Applications

  • Cell Phones
  • Notebooks
  • SAN/NAS
  • Satellite Radio
  • Servers
Part Models 4
1ku List Price Starting From $2.20

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Documentation

Documentation

Part Model Pin/Package Drawing Documentation CAD Symbols, Footprints, and 3D Models
MAX7322AEE+
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MAX7322AEE+T
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MAX7322ATE+
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Product Lifecycle

PCN

Jan 24, 2019

- 1746N

ASSEMBLY

MAX7322AEE+

PRODUCTION

MAX7322AEE+T

PRODUCTION

Jan 9, 2015

- 1481

WAFER FAB

MAX7322AEE+

PRODUCTION

MAX7322ATE+

PRODUCTION

MAX7322ATE+T

PRODUCTION

Apr 9, 2018

- 1682

ASSEMBLY

MAX7322ATE+

PRODUCTION

MAX7322ATE+T

PRODUCTION

Jun 20, 2016

- 1612

ASSEMBLY

MAX7322ATE+

PRODUCTION

MAX7322ATE+T

PRODUCTION

Filter by Model

reset

Reset Filters

Part Models

Product Lifecycle

PCN

Jan 24, 2019

- 1746N

arrow down

ASSEMBLY

MAX7322AEE+

PRODUCTION

MAX7322AEE+T

PRODUCTION

Jan 9, 2015

- 1481

arrow down

WAFER FAB

MAX7322AEE+

PRODUCTION

MAX7322ATE+

PRODUCTION

MAX7322ATE+T

PRODUCTION

Apr 9, 2018

- 1682

arrow down

ASSEMBLY

MAX7322ATE+

PRODUCTION

MAX7322ATE+T

PRODUCTION

Jun 20, 2016

- 1612

arrow down

ASSEMBLY

MAX7322ATE+

PRODUCTION

MAX7322ATE+T

PRODUCTION

Software & Part Ecosystem

Software & Part Ecosystem

Evaluation Kit

Evaluation Kits 2

MAX7322EVCMAXQU

MAX7322 Evaluation Kit/Evaluation System

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MAX7322EVCMAXQU

MAX7322 Evaluation Kit/Evaluation System

MAX7322 Evaluation Kit/Evaluation System

Features and Benefits

  • 400kHz I²C/2-Wire Serial Interface
  • 1.71V to 5.5V Operation Voltage
  • 4 Push-Pull Output Ports Rated at 20mA Sink Current
  • 4 Input Ports with Maskable, Latching Transition Detection
  • Proven PCB Layout
  • Windows 98SE/2000/XP-Compatible Evaluation Software
  • Fully Assembled and Tested
  • EV System: USB-to-PC Connection

Product Detail

The MAX7322 evaluation kit (EV kit) is a fully assembled and tested printed circuit board (PCB) that demonstrates the capabilities of the MAX7322 I²C port expander with four push-pull outputs and four inputs. The MAX7322 EV kit also includes Windows® 98SE/2000/XP-compatible software, which provides a simple graphical user interface (GUI) for exercising the MAX7322's features.

The MAX7322 evaluation system (EV system) includes a MAX7322 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 MAX7322 EV kit.

The EV kit comes with the MAX7322ATE+ installed. The MAX7322 EV kit can also be used to evaluate the MAX7319/MAX7320/MAX7321/MAX7323. Contact the factory for free samples of the pin-compatible MAX7319ATE+, MAX7320ATE+, MAX7321ATE+, or MAX7323ATE+ to evaluate these parts.

Applications

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

MAX7322EVKIT

MAX7322 Evaluation Kit/Evaluation System

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MAX7322EVKIT

MAX7322 Evaluation Kit/Evaluation System

MAX7322 Evaluation Kit/Evaluation System

Features and Benefits

  • 400kHz I²C/2-Wire Serial Interface
  • 1.71V to 5.5V Operation Voltage
  • 4 Push-Pull Output Ports Rated at 20mA Sink Current
  • 4 Input Ports with Maskable, Latching Transition Detection
  • Proven PCB Layout
  • Windows 98SE/2000/XP-Compatible Evaluation Software
  • Fully Assembled and Tested
  • EV System: USB-to-PC Connection

Product Detail

The MAX7322 evaluation kit (EV kit) is a fully assembled and tested printed circuit board (PCB) that demonstrates the capabilities of the MAX7322 I²C port expander with four push-pull outputs and four inputs. The MAX7322 EV kit also includes Windows® 98SE/2000/XP-compatible software, which provides a simple graphical user interface (GUI) for exercising the MAX7322's features.

The MAX7322 evaluation system (EV system) includes a MAX7322 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 MAX7322 EV kit.

The EV kit comes with the MAX7322ATE+ installed. The MAX7322 EV kit can also be used to evaluate the MAX7319/MAX7320/MAX7321/MAX7323. Contact the factory for free samples of the pin-compatible MAX7319ATE+, MAX7320ATE+, MAX7321ATE+, or MAX7323ATE+ to evaluate these parts.

Applications

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

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