MAX7322AEE+ by Analog Devices

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

Status: Active
Series: MAX7322
RoHS: Unknown
Download Datasheet Visit Manufacturer Site View Pricing & Stock
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.

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Prices starting from US$3.92

Distributor Stock
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Newark Electronics
from US$4.37
200
in stock
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element14
from US$4.72
200
in stock
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Farnell
from US$3.92
200
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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

Specifications

Inputs 4
Interface Serial - I2C CompatibleSerial 2-Wire 400kbit
Outputs 4
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/16TQFN/16
BudgetaryPrice (See Notes) 2.06

Last 6 months Inventory & Pricing History

MAX7322AEE+ Semiconductors - ICs by Analog Devices

I/O EXPANDER I2C 4PORT 400KHZ QSOP16

Semiconductors - ICs
> Drivers & Interfaces
> I/O Expanders
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 QSOP
No. of Pins 16Pins
No. of I/O's 4I/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

I/O Expander, I2C, 4Port, 400Khz, Qsop16 | Newark Electronics
I/O EXPANDER, I2C, 4PORT, 400KHZ, QSOP16 | element14

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This part has not been flagged as RoHS Compliant.

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