MAX7323
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MAX7323

I²C Port Expander with 4 Push-Pull Outputs and 4 Open-Drain I/Os

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Low Operating Supply Voltage I²C Port Expander with 4 Push-Pull Outputs and 4 Open-Drain I/Os

Info: : PRODUCTION tooltip
Info: : PRODUCTION tooltip
Part Details
Part Models 4
1ku List Price Starting From $2.12
Features
  • 400kHz I²C Serial Interface
  • +1.71V to +5.5V Operating Voltage
  • 4 Push-Pull Output Ports Rated at 20mA Sink Current
  • 4 Open-Drain I/O Ports Rated to 20mA Sink Current
  • 4 I/O Ports Are Overvoltage Protected to +6V
  • Transient Changes Are Latched, Allowing Detection Between Read Operations
  • Active-Low INT Output Alerts Change on 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 MAX7323 2-wire serial-interfaced peripheral features eight I/O ports. Four ports are push-pull outputs and the other four are open-drain I/O ports that are overvoltage protected up to +6V independent of the supply voltage.

The four I/O ports configured as inputs are continuously monitored for state changes (transition detection). State changes are indicated by the open-drain active-low INT output. The interrupt is latched, allowing detection of transient changes. When the MAX7323 is subsequently accessed through the serial interface, any pending interrupt is cleared.

The four push-pull and four open-drain 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 MAX7323.

The MAX7323 uses two address inputs with four-level logic to allow 16 I²C slave addresses. The slave address also determines the power-up logic state for the I/O ports, and enables or disables internal 40kΩ pullups for the input ports in groups of two ports.

The MAX7323 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 MAX7323 is available in 16-pin QSOP and 16-pin TQFN packages, and is specified over the automotive temperature range (-40°C to +125°C).

Applications

  • Cell Phones
  • Notebooks
  • RAID
  • SAN/NAS
  • Servers
Part Models 4
1ku List Price Starting From $2.12

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Jan 9, 2015

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MAX7323AEE+

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Apr 9, 2018

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Jun 20, 2016

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Part Models

Product Lifecycle

PCN

Jan 9, 2015

- 1481

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WAFER FAB

MAX7323AEE+

PRODUCTION

MAX7323AEE+T

PRODUCTION

MAX7323ATE+

PRODUCTION

MAX7323ATE+T

PRODUCTION

Apr 9, 2018

- 1682

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ASSEMBLY

MAX7323ATE+

PRODUCTION

MAX7323ATE+T

PRODUCTION

Jun 20, 2016

- 1612

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ASSEMBLY

MAX7323ATE+

PRODUCTION

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PRODUCTION

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