MAX7318ATG+
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Integrated Circuits ICs
Specifications
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Introduction
MAX7318ATG+
The MAX7318ATG+ is an integrated circuit (IC) primarily categorized as an I²C-controlled GPIO expander, designed and manufactured by Maxim Integrated (now part of Analog Devices). It addresses the common challenge of limited general-purpose input/output (GPIO) pins in microcontroller (MCU) or processor-based systems, enabling efficient expansion of digital I/O capabilities while minimizing interface complexity.
Key Functional Characteristics
- I²C Interface Compatibility: Operates on the industry-standard I²C serial communication bus, supporting both standard-mode (100 kHz) and fast-mode (400 kHz) data transfer rates.
- GPIO Expansion Capacity: Provides 16 independent, configurable digital I/O pins, each programmable as input or output via I²C bus.
- Output Drive Capability: Delivers sufficient sink/source current to directly drive low-power loads without additional buffer components.
- Input Handling: Features Schmitt-trigger functionality for enhanced noise immunity in electrically noisy environments.
- Power Supply Flexibility: Operates from 2.5V to 5.5V, compatible with both 3.3V and 5V system architectures.
Package Type & Physical Attributes
Package: 16-pin TQFN (Thin Quad Flat No-Lead)
Benefits: Small footprint, excellent thermal performance, reduced parasitic inductance/capacitance
Compliance: "+" symbol denotes lead-free (RoHS-compliant) manufacturing
Typical Application Fields
- Consumer Electronics: Smart home devices, portable gadgets, and audio/video equipment
- Industrial Automation: PLCs, sensor modules, and human-machine interfaces (HMIs)
- Automotive Electronics: In-vehicle infotainment systems, dashboard controls, and lighting modules
Key Advantages
- Space Efficiency: TQFN package and I²C interface minimize board real estate
- Flexibility: 16 individually configurable I/O pins adapt to varied use cases
- Robustness: Schmitt-trigger inputs and wide voltage range ensure reliable operation in harsh environments
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