MAX7321AEE+ by Analog Devices

I2C Port Expander with 8 Open-Drain I/Os

Status: Active
Series: MAX7321
RoHS: Unknown
View Datasheet Manufacturer Site View Pricing & Stock

The MAX7321 2-wire serial-interfaced peripheral features eight open-drain I/O ports with selectable internal pullups and transition detection. Any port may be used as a logic input or an open-drain output. Ports are overvoltage protected to +6V independent of supply voltage. All 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 MAX7321 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 +6V tolerant active-low RST input clears the serial interface, terminating any I2C communication to or from the MAX7321. The MAX7321 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 MAX7321 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. The MAX7321 is available in 16-pin QSOP and TQFN packages, and is specified over the automotive temperature range (-40°C to +125°C).

Prices starting from US$2.36


Distributor Starting From Stock
Logo for Newark Electronics Newark Electronics US$3.10
81
Buy Now
Logo for element14 element14 US$2.46
81
Buy Now
View Full Pricing & Stock Comparison

Features

400kHz I2C Serial Interface
+1.71V to +5.5V Operating Voltage
8 Open-Drain I/O Ports Rated to 20mA Sink Current
I/O Ports Are Overvoltage Protected to +6V
Any Port Can Be a Logic Input or an Open-Drain Output
Selectable I/O Port Power-Up Default Logic States
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

Specifications

Interface Serial 2-Wire 400kbit
I/O 8
Reset Input Yes
Interrupt Output Yes
Over Voltage Protection (V) 6
Drive Current (mA) 20
VSUPPLY (V) (min) 1.71
VSUPPLY (V) (max) 5.5
Package/Pins QSOP/16TQFN/16
BudgetaryPrice (See Notes) 1.31


MAX7321AEE+ Semiconductors - ICs by Analog Devices

I/O EXPANDER I2C 8PORT 400KHZ QSOP16

Status: Unknown
Series: -
RoHS: Unknown
View Datasheet 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 8I/O's
Product Range -
Automotive Qualification Standard -
RoHS Phthalates Compliant To Be Advised
MSL MSL 1 - Unlimited
SVHC No SVHC (15-Jan-2018)

Alternative Descriptions

I/O Expander, I2C, 8Port, 400Khz, Qsop16 | Newark Electronics
I/O EXPANDER, I2C, 8PORT, 400KHZ, QSOP16 | element14

Frequently Asked Questions

Where can I find additional details, specifications and documents for a MAX7321AEE+ ?

Additional datasheets, footprints and schematics for MAX7321AEE+ are listed on our Part Details page. You can also find images and similar parts to MAX7321AEE+ on this page.

What pricing and inventory information can I view?

Distributor pricing and stock information is available for MAX7321AEE+ on our Product Comparison page. Access via the 'View Pricing & Stock' button to view MAX7321AEE+ price breaks, MOQs, lead times, inventory and SKUs from distributors.

Who can I contact for technical support of the product?

Submit any questions directly to the customer support team of the distributor listing the product. For the MAX7321AEE+ you can contact the distributor directly for product support, shipping queries etc.

Is the MAX7321AEE+ RoHS compliant?

This part has not been flagged as RoHS Compliant.

Which authorised distributors for MAX7321AEE+ have stock available?

Authorised distributors including Newark Electronics, element14 and Farnell have stock available or on a lead time for MAX7321AEE+ .

How do I check stock and lead times for all distributors?

Stock availability and lead times will be displayed for MAX7321AEE+ often in real-time on the comparison pages.

What if I can't find stock of MAX7321AEE+ ?

You can fill out our help required form which you can use to request a quote for MAX7321AEE+ from some of our verified obsolescence suppliers. Alternatively, contact us via our web chat in the bottom left of your screen and one of our team will try to help.

We use cookies to improve your experience. See our privacy policy.
Okay