MAX7312AUG+ by Analog Devices

2-Wire-Interfaced 16-Bit I/O Port Expander with Interrupt and Hot-Insertion Protection


The MAX7312 2-wire-interfaced expander provides 16-bit parallel input/output (I/O) port expansion in SMBus™ and I²C applications. The MAX7312 consists of input port registers, output port registers, polarity inversion registers, configuration registers, a bus timeout register, and an I²C-compatible serial interface logic, compatible with SMBus. The system master can invert the MAX7312 input data by writing to the active-high polarity inversion register. The system master can enable or disable bus timeout by writing to the bus timeout register. Any of the 16 I/O ports can be configured as an input or an output. A power-on reset (POR) initializes the 16 I/Os as inputs. Three address select pins configure the part to one of 64 slave ID addresses. The MAX7312 supports hot insertion. All port pins, the active-low INT output, SDA, SCL, and the slave address inputs AD0-2 remain high impedance in power-down (Vt = 0V) up to 6V. The MAX7312 is available in 24-pin SO, SSOP, TSSOP, and thin QFN packages and is specified over the -40°C to +125°C automotive temperature range. For applications requiring I/Os with integrated 100kΩ pullup resistors, refer to the MAX7311 data sheet.

Where to Buy

Prices starting from US$2.93

Distributor Stock
Logo for Farnell
Farnell
from US$3.70
242
in stock
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Logo for Newark Electronics
Newark Electronics
from US$4.63
242
in stock
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Logo for element14
element14
from US$3.71
242
in stock
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Logo for Avnet Asia
Avnet Asia
from US$2.93
-
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Features

400kbps I²C-Compatible Serial Interface
2V to 5.5V Operation
5V Overvoltage Tolerant I/Os
Supports Hot Insertion
16 I/O Pins that Default to Inputs on Power-Up
Open-Drain Interrupt Output (Active-Low INT)
Bus Timeout for Lock-Up-Free Operation
Noise Filter on SCL/SDA Inputs
64 User-Selectable Slave ID Addresses
Low Standby Current (2.9µA typ)
Polarity Inversion
4mm x 4mm, 0.8mm Thin QFN Package
-40°C to +125°C Operation

Specifications

Interface Serial 2-Wire 400kbit
I/O 16
Interrupt Output Yes
Over Voltage Protection (V) 5.5
Drive Current (mA) 40
VSUPPLY (V) (min) 2
VSUPPLY (V) (max) 5.5
Package/Pins SOIC (W)/24SSOP/24TQFN/24TSSOP/24
BudgetaryPrice (See Notes) 2.63


MAX7312AUG+ Semiconductors - ICs by Analog Devices

I/O EXPANDER I2C 16BIT TSSOP-24

Status: Unknown
Series: -
RoHS: Unknown
Download Datasheet Visit Manufacturer Site View Pricing & Stock

Specifications

Chip Configuration 16bit
Bus Frequency 400kHz
IC Interface Type I2C
Supply Voltage Min 2V
Supply Voltage Max 5.5V
Interface Case Style TSSOP
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)

Alternative Descriptions

I/O Expander, I2C, 16Bit, Tssop-24 | Newark Electronics
I/O EXPANDER, I2C, 16BIT, TSSOP-24 | element14
I/O Port Expander 24-Pin TSSOP | Avnet Asia

Frequently Asked Questions

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Is the MAX7312AUG+ RoHS compliant?

This part has not been flagged as RoHS Compliant.

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Authorised distributors including Newark Electronics, element14, Farnell and Avnet Asia have stock available or on a lead time for MAX7312AUG+ .

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