MAX7325ATG+ by Analog Devices

I2C Port Expander with 8 Push-Pull and 8 Open-Drain I/Os

Status: Active
Series: MAX7325
RoHS: Unknown
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The MAX7325 2-wire serial-interfaced peripheral features 16 I/O ports. Ports are divided into eight push-pull outputs and eight I/Os with selectable internal pullups and transition detection. Eight ports are push-pull outputs and eight I/Os may be used as a logic input or an open-drain output. Ports are overvoltage protected to +6V. All I/O ports configured as inputs are continuously monitored for state changes (transition detection). State changes are indicated by the active-low INT output. The interrupt is latched, allowing detection of transient changes. When the MAX7325 is subsequently accessed through the serial interface, any pending interrupt is cleared. The 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 MAX7325. The MAX7325 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 in groups of four ports. The MAX7325 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 of the full data sheet). The MAX7325 is available in 24-pin QSOP and TQFN packages and is specified over the -40°C to +125°C automotive temperature range.

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Prices starting from US$1.54

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Features

400kHz I2C Serial Interface
+1.71V to +5.5V Operating Voltage
8 Push-Pull Output Ports
8 Open-Drain I/O Ports, Rated at 20mA Sink Current
I/O Ports are Overvoltage Protected to +6V
Selectable I/O Port Power-Up Default Logic States
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

Specifications

Interface Serial - I2C CompatibleSerial 2-Wire 400kbit
I/O 16
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) 1.25

Last 6 months Inventory & Pricing History

MAX7325ATG+ Semiconductors - ICs by Analog Devices

I/O EXPANDER I2C 16PORT TQFN-24

Electronic & Electrical Components>Semiconductors - ICs>Driver & Interface ICs
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 MSL 1 - Unlimited
SVHC No SVHC (15-Jan-2018)

Last 6 months Inventory & Pricing History

Alternative Descriptions

I²C Port Expander with 8 Push- | Analog Devices
I/O EXPANDER, I2C, 16PORT, TQFN-24 | Farnell

Frequently Asked Questions

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This part has not been flagged as RoHS Compliant.

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