MAX7314ATG+ by Analog Devices

18-Port GPIO with LED Intensity Control, Interrupt, and Hot-Insertion Protection


The MAX7314 I²C-compatible serial interfaced peripheral provides microprocessors with 16 I/O ports plus one output-only port and one input-only port. Each I/O port can be individually configured as either an open-drain current-sinking output rated at 50mA and 5.5V, or a logic input with transition detection. The output-only port can be assigned as an interrupt output for transition detection. The outputs are capable of driving LEDs, or providing logic outputs with external resistive pullup up to 5.5V. Eight-bit PWM current control is built in for all 17 output ports. A 4-bit global control applies to all LED outputs and provides coarse adjustment of current from fully off to fully on with 14 intensity steps in between. Each output has an individual 4-bit control, which further divides the globally set current into 16 more steps. Alternatively, the current control can be configured as a single 8-bit control that sets all outputs at once. Each output has independent blink timing with two blink phases. All LEDs can be individually set to be on or off during either blink phase, or to ignore the blink control. The blink period is controlled by a clock input (up to 1kHz) on BLINK or by a register. The BLINK input can also be used as a logic control to turn the LEDs on and off, or as a general-purpose input. The MAX7314 supports hot insertion. All port pins, the active-low INT output, SDA, SCL, active-low RST, BLINK, and the slave address input ADO remain high impedance in powerdown (V+ = 0V) with up to 6V asserted upon them. The MAX7314 is controlled through a 2-wire serial interface, and uses four-level logic to allow four I²C addresses from only one select pin.

Where to Buy

Prices starting from US$3.63

Distributor Stock
Logo for Farnell
Farnell
from US$5.38
No stock
Buy Now
Logo for Analog Devices
Analog Devices
from US$3.63
1,561
in stock
Buy Now
Logo for element14
element14
from US$4.30
-
Buy Now
Logo for Newark Electronics
Newark Electronics
-
-
Buy Now

Features

400kbps, 2-Wire Serial Interface, 5.5V Tolerant
2V to 3.6V Operation
Overall 8-Bit PWM LED Intensity Control Global 16-Step Intensity Control Individual 16-Step Intensity Controls
Global 16-Step Intensity Control
Individual 16-Step Intensity Controls
2-Phase LED Blinking
50mA Maximum Port Output Current
Supports Hot Insertion
Outputs are 5.5V-Rated Open Drain
Inputs are Overvoltage Protected to 5.5V
Transition Detection with Interrupt Output
1.2µA (typ), 3.6µA (max) Operating Current
Small 4mm x 4mm, Thin QFN Package
-40°C to +125°C Temperature Range

Specifications

Inputs 1
Interface Serial 2-Wire 400kbit
Outputs 1
I/O 16
Reset Input Yes
Interrupt Output Yes
Over Voltage Protection (V) 5.5
Drive Current (mA) 50
VSUPPLY (V) (min) 2
VSUPPLY (V) (max) 3.6
Package/Pins QSOP/24TQFN/24
BudgetaryPrice (See Notes) 2.78


MAX7314ATG+ Semiconductors - ICs by Analog Devices

I/O EXPANDER I2C 18PORT 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 2V
Supply Voltage Max 3.6V
Interface Case Style TQFN
No. of Pins 24Pins
No. of I/O's 18I/O's
Product Range -
Automotive Qualification Standard -
MSL MSL 1 - Unlimited
SVHC No SVHC (15-Jan-2018)

Alternative Descriptions

18-Port GPIO with LED Intensit | Analog Devices
I/O EXPANDER, I2C, 18PORT, TQFN-24 | Farnell
I/O Expander, I2C, 18Port, Tqfn-24 | Newark Electronics

Frequently Asked Questions

Where can I find additional details, specifications and documents for a MAX7314ATG+ ?

Additional datasheets, footprints and schematics for MAX7314ATG+ are listed on our Part Details page. You can also find images and similar parts to MAX7314ATG+ on this page.

What pricing and inventory information can I view?

Distributor pricing and stock information is available for MAX7314ATG+ on our Product Comparison page. Access via the 'View Pricing & Stock' button to view MAX7314ATG+ 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 MAX7314ATG+ you can contact the distributor directly for product support, shipping queries etc.

Is the MAX7314ATG+ RoHS compliant?

This part has not been flagged as RoHS Compliant.

Which authorised distributors for MAX7314ATG+ have stock available?

Authorised distributors including Analog Devices, element14, Farnell and Newark Electronics have stock available or on a lead time for MAX7314ATG+ .

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

Stock availability and lead times will be displayed for MAX7314ATG+ often in real-time on the comparison pages.

What if I can't find stock of MAX7314ATG+ ?

You can fill out our help required form which you can use to request a quote for MAX7314ATG+ 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