MAX7318ATG+ by Analog Devices

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


The MAX7318 2-wire-interfaced expander provides 16-bit parallel input/output (I/O) port expansion for SMBus™ and I²C applications. The MAX7318 consists of input port registers, output port registers, polarity inversion registers, configuration registers, and an I²C-compatible serial interface logic compatible with SMBus. The system master can invert the MAX7318 input data by writing to the active-high polarity inversion register. Any of the 16 I/O ports can be configured as an input or output. A power-on reset (POR) initializes the 16 I/Os as inputs. Three address select pins configure one of 64 slave ID addresses. The MAX7318 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 (V+ = 0V) with up to 6V asserted upon them. The MAX7318 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 an SMBus timeout function, refer to the MAX7311 data sheet.

Where to Buy

Prices starting from US$3.04

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Features

400kbps I²C-Compatible Serial Interface
2V to 5.5V Operation
5.5V Overvoltage-Tolerant I/Os
Supports Hot Insertion
16 I/O Pins that Default to Inputs on Power-Up
100kΩ Pullup on Each I/O
Open-Drain Interrupt Output (Active-Low INT)
Noise Filter on SCL/SDA Inputs
64 Slave ID Addresses Available
Low Standby Current (5.4µA 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) 2.58


MAX7318ATG+ Semiconductors - ICs by Analog Devices

I/O EXPANDER SPI 16BIT 26MHZ TQFN-24

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

Specifications

Chip Configuration 16bit
Bus Frequency 26MHz
IC Interface Type SPI
Supply Voltage Min 2V
Supply Voltage Max 5.5V
Interface Case Style TQFN
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

2-Wire-Interfaced, 16-Bit, I/O | Analog Devices
I/O Expander, Spi, 16Bit, 26Mhz, Tqfn-24 | Newark Electronics
I/O EXPANDER, SPI, 16BIT, 26MHZ, TQFN-24 | element14

Frequently Asked Questions

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Is the MAX7318ATG+ RoHS compliant?

This part has not been flagged as RoHS Compliant.

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