MAX7319AEE+ by Analog Devices

I²C Port Expander with Eight Inputs and Maskable Transition Detection

Status: Active
Series: MAX7319
RoHS: Unknown
Download Datasheet Visit Manufacturer Site View Pricing & Stock
The MAX7319 2-wire serial-interfaced peripheral features eight input ports with selectable internal pullups, overvoltage protection to +6V, and transition detection with interrupt output. All input ports are continuously monitored for state changes (transition detection). Transitions are 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 MAX7319 is subsequently accessed through the serial interface, any pending interrupt is cleared. The +5.5V tolerant active-low RST input clears the serial interface, terminating any I²C communication to or from the MAX7319. The MAX7319 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 MAX7319 supports hot insertion. All eight input ports, the serial interface SDA, SCL, AD0, AD2, active-low INT, and active-low RST remain high impedance in power-down (V+ = 0) with up to +6V asserted on them. The MAX7319 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 MAX7319 is available in 16-pin QSOP and 16-pin TQFN packages, and is specified over the automotive temperature range (-40°C to +125°C).

Where to Buy

Prices starting from US$3.91

Distributor Stock
Logo for Newark
Newark Electronics
from US$3.92
343
in stock
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element14
from US$4.24
343
in stock
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Farnell
from US$3.91
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Features

400kHz, +5.5V-Tolerant I²C Serial Interface
+1.71V to +5.5V Operating Voltage
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 (typ) Standby Current
-40°C to +125°C

Specifications

Inputs 8
Interface Serial - I2C CompatibleSerial 2-Wire 400kbit
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

Last 6 months Inventory & Pricing History

MAX7319AEE+ Semiconductors - ICs by Analog Devices

I/O EXPANDER I2C 8 I/P PORT QSOP-16

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 8I/O's
Product Range -
Automotive Qualification Standard -
MSL MSL 1 - Unlimited
SVHC No SVHC (15-Jan-2018)

Last 6 months Inventory & Pricing History

Alternative Descriptions

I/O Expander, I2C, 8 I/P Port, Qsop-16 | Newark Electronics
I/O EXPANDER, I2C, 8 I/P PORT, QSOP-16 | element14

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This part has not been flagged as RoHS Compliant.

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