MAX7324ATG+ by Analog Devices

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


The MAX7324 2-wire serial-interfaced peripheral features 16 I/O ports that are divided into eight push-pull outputs and eight inputs. Each input features selectable internal pullups, overvoltage protection to +6V, and transition detection with an interrupt output. All 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 active-low INT output. When the MAX7324 is subsequently accessed through the serial interface, any pending interrupt is cleared. The 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 MAX7324. The MAX7324 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 four ports. The MAX7324 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 MAX7324 is available in 24-pin QSOP and TQFN packages, and is specified over the -40°C to +125°C automotive temperature range.

Where to Buy

Prices starting from US$2.29

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Features

400kHz, +6V-Tolerant I²C Serial Interface
+1.71V to +5.5V Operating Voltage
Eight Push-Pull Outputs
Eight 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 Standby Current
-40°C to +125°C Temperature Range

Specifications

Inputs 8
Interface Serial - I2C CompatibleSerial 2-Wire 400kbit
Outputs 8
Reset Input Yes
Interrupt Output Yes
Over Voltage Protection (V) 6
Drive Current (mA) 25
VSUPPLY (V) (min) 1.71
VSUPPLY (V) (max) 5.5
Package/Pins QSOP/24TQFN/24
BudgetaryPrice (See Notes) 2.14


MAX7324ATG+ Semiconductors - ICs by Analog Devices

I/O EXPANDER 16 I/O 400KHZ TQFN-24

Status: Unknown
Series: -
RoHS: Unknown
Download Datasheet Visit Manufacturer Site View Pricing & Stock

Specifications

Chip Configuration -
Bus Frequency 400kHz
IC Interface Type I2C
Supply Voltage Min 1.71V
Supply Voltage Max 5.5V
Interface Case Style TQFN
No. of Pins 24Pins
No. of I/O's 16I/O's
Product Range -
Automotive Qualification Standard -
RoHS Phthalates Compliant To Be Advised
MSL -
SVHC No SVHC (15-Jan-2018)

Alternative Descriptions

I²C Port Expander with Eight P | Analog Devices
I/O EXPANDER, 16 I/O, 400KHZ, TQFN-24 | Farnell
I/O Expander, 16 I/O, 400Khz, Tqfn-24 | Newark Electronics

Frequently Asked Questions

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Is the MAX7324ATG+ RoHS compliant?

This part has not been flagged as RoHS Compliant.

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Authorised distributors including Analog Devices, element14, Farnell and Newark Electronics have stock available or on a lead time for MAX7324ATG+ .

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