MAX7318
2-Wire-Interfaced, 16-Bit, I/O Port Expander with Interrupt and Hot-Insertion Protection
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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
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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.
Applications
- Industrial Control
- Instrumentation and Test Measurement
- Medical Equipment
- PLCs
- RAID Systems
- Servers
Ask a Question
Submit your question below and we will return the best answer from ADI’s knowledge database:
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Analog Devices Support Portal is a one-stop shop to answer all your ADI questions.
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MAX7318
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Data Sheet
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MAX7318: 2-Wire-Interfaced, 16-Bit, I/O Port Expander with Interrupt and Hot-Insertion Protection Data Sheet (Rev.3)
Reliability Data
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98.89K
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Data Sheet 1
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Technical Articles 1
Device Drivers 1
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.
| Part Model | Pin/Package Drawing | Documentation | CAD Symbols, Footprints, and 3D Models |
|---|---|---|---|
| MAX7318AAG+ |
24-SSOP-5.3_MM
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| MAX7318AAG+T |
24-SSOP-5.3_MM
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| MAX7318ATG+ |
24-TQFN-4X4X0.75
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| MAX7318ATG+T |
24-TQFN-4X4X0.75
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| MAX7318AUG+ |
Thin Shrink Small-Outline Package
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| MAX7318AUG+T |
Thin Shrink Small-Outline Package
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| MAX7318AWG+ |
Small-Outline IC, Wide (0.3in)
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| MAX7318AWG+T |
Small-Outline IC, Wide (0.3in)
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- MAX7318AAG+
- Pin/Package Drawing
-
24-SSOP-5.3_MM
- Documentation
-
HTML
Material Declaration
-
HTML
Reliablity Data
- CAD Symbols, Footprints, and 3D Models
-
Ultra Librarian
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SamacSys
- MAX7318AAG+T
- Pin/Package Drawing
-
24-SSOP-5.3_MM
- Documentation
-
HTML
Material Declaration
-
HTML
Reliablity Data
- CAD Symbols, Footprints, and 3D Models
-
Ultra Librarian
-
SamacSys
- MAX7318ATG+
- Pin/Package Drawing
-
24-TQFN-4X4X0.75
- Documentation
-
HTML
Material Declaration
-
HTML
Reliablity Data
- CAD Symbols, Footprints, and 3D Models
-
Ultra Librarian
-
SamacSys
- MAX7318ATG+T
- Pin/Package Drawing
-
24-TQFN-4X4X0.75
- Documentation
-
HTML
Material Declaration
-
HTML
Reliablity Data
- CAD Symbols, Footprints, and 3D Models
-
Ultra Librarian
-
SamacSys
- MAX7318AUG+
- Pin/Package Drawing
-
Thin Shrink Small-Outline Package
- Documentation
-
HTML
Material Declaration
-
HTML
Reliablity Data
- CAD Symbols, Footprints, and 3D Models
-
Ultra Librarian
-
SamacSys
- MAX7318AUG+T
- Pin/Package Drawing
-
Thin Shrink Small-Outline Package
- Documentation
-
HTML
Material Declaration
-
HTML
Reliablity Data
- CAD Symbols, Footprints, and 3D Models
-
Ultra Librarian
-
SamacSys
- MAX7318AWG+
- Pin/Package Drawing
-
Small-Outline IC, Wide (0.3in)
- Documentation
-
HTML
Material Declaration
-
HTML
Reliablity Data
- CAD Symbols, Footprints, and 3D Models
-
Ultra Librarian
-
SamacSys
- MAX7318AWG+T
- Pin/Package Drawing
-
Small-Outline IC, Wide (0.3in)
- Documentation
-
HTML
Material Declaration
-
HTML
Reliablity Data
- CAD Symbols, Footprints, and 3D Models
-
Ultra Librarian
-
SamacSys
Filter by Model
Part Models
Product Lifecycle
PCN
Jan 9, 2015
- 1481
WAFER FAB
MAX7318AAG+
PRODUCTION
MAX7318ATG+
PRODUCTION
MAX7318ATG+T
PRODUCTION
MAX7318AUG+
PRODUCTION
MAX7318AUG+T
PRODUCTION
MAX7318AWG+
PRODUCTION
MAX7318AWG+T
PRODUCTION
Jun 20, 2016
- 1612
ASSEMBLY
MAX7318ATG+
PRODUCTION
MAX7318ATG+T
PRODUCTION
Filter by Model
Part Models
Product Lifecycle
PCN
Jan 9, 2015
- 1481
WAFER FAB
MAX7318AAG+
PRODUCTION
MAX7318ATG+
PRODUCTION
MAX7318ATG+T
PRODUCTION
MAX7318AUG+
PRODUCTION
MAX7318AUG+T
PRODUCTION
MAX7318AWG+
PRODUCTION
MAX7318AWG+T
PRODUCTION
Jun 20, 2016
- 1612
ASSEMBLY
Software & Part Ecosystem
Device Drivers
Looking for Evaluation Software? You can find it here
| Parts | Product Life Cycle | Description | ||
|---|---|---|---|---|
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Direct from Battery LED/GPIO Drivers9 |
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PRODUCTION |
2-Wire-Interfaced 16-Bit I/O Port Expander with Interrupt and Hot-Insertion Protection |
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PRODUCTION |
2-Wire-Interfaced 16-Bit I/O Port Expander with Interrupt and Hot-Insertion Protection |
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PRODUCTION |
2-Wire-Interfaced 8-Bit I/O Port Expander with Reset |
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PRODUCTION |
2-Wire-Interfaced, 2.5V to 5.5V, 20-Port or 28-Port I/O Expander |
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PRODUCTION |
4-Wire-Interfaced, 2.5V to 5.5V, 20-Port and 28-Port I/O Expander |
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PRODUCTION |
8-Port I/O Expander with LED Intensity Control, Interrupt, and Hot-Insertion Protection |
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PRODUCTION |
18-Port GPIO with LED Intensity Control, Interrupt, and Hot-Insertion Protection |
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PRODUCTION |
16-Port I/O Expander with LED Intensity Control, Interrupt, and Hot-Insertion Protection |
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PRODUCTION |
10-Port SPI-Interfaced I/O Expander with Overvoltage and Hot-Insertion Protection |
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Display Driver Electronics4 |
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PRODUCTION |
2-Wire-Interfaced, 2.5V to 5.5V, 20-Port or 28-Port LED Display Driver and I/O Expander |
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PRODUCTION |
4-Wire-Interfaced, 2.5V to 5.5V, 20-Port and 28-Port LED Display Driver and I/O Expander |
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PRODUCTION |
17-Output LED Driver/GPO with Intensity Control and Hot-Insertion Protection |
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PRODUCTION |
9-Output LED Driver with Intensity Control and Hot-Insertion Protection |
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Product1 |
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10-Port I/O Expander with LED Intensity Control, Interrupt, and Hot-Insertion Protection |
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Evaluation Kits 1
MAX7318EVKIT
Evaluation Kit for the MAX7318
Features and Benefits
- Windows 2000/XP/Vista (32-Bit)-Compatible Evaluation Software
- USB-PC Connection (Cable Included)
- USB Powered
- Configurable Input or Push-Pull Output
- Proven PCB Layout
- Fully Assembled and Tested
- Lead-Free and RoHS-Compliant
- On-Board Pushbutton Switches
- On-Board LEDs for Demonstrating the Push-Pull Capabilities of the GPIOs
Product Detail
The MAX7318 evaluation kit (EV kit) provides a proven design to evaluate the MAX7318 I²C-compatible 16-bit I/O port expander, with each port configurable as input or push-pull output. The EV kit also includes Windows® 2000/XP/Vista®-compatible software that provides a simple graphical user interface (GUI) for exercising the features of the MAX7318. The MAX7318 EV kit PCB comes with a MAX7318ATG+ installed.
Applications
- Industrial Control
- Instrumentation and Test Measurement
- Medical Equipment
- PLCs
- RAID Systems
- Servers
Evaluation Kits1
Tools & Simulations 1
Software Development 1
