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MAX7301AGL

产品分类: I/O扩展器
厂牌: MAXIM INTEGRATED
产品描述: 2.5V 26MHz QFN-EP-40 贴片安装
供应商型号:
供应商:
标准整包数: 0
MAXIM INTEGRATED I/O扩展器 MAX7301AGL

MAX7301AGL概述

    MAX7301 4-Wire-Interfaced I/O Expander
    Product Introduction
    The MAX7301 from Maxim Integrated is a highly integrated I/O expander designed to provide microprocessors with up to 28 configurable general-purpose I/O (GPIO) ports. Each port can independently function as either a logic input or a logic output, making it ideal for a wide range of applications requiring flexible digital control and monitoring. The device operates through an SPI-compatible serial interface, offering high-speed communication and efficient use of resources. Its key application areas include white goods, automotive electronics, gaming machines, industrial controllers, and system monitoring.
    Technical Parameters
    The MAX7301 comes in various configurations:
    - Ports: 20 or 28 GPIO ports.
    - Supply Voltage: Operates over a wide voltage range of 2.5V to 5.5V.
    - Operating Temperature: -40°C to +125°C.
    - Current Consumption:
    - Shutdown Mode: Up to 11µA.
    - Typical Operating Mode: 110µA to 230µA (depending on operating conditions).
    - Power Dissipation:
    - 28-Pin SSOP: 762mW (above +70°C).
    - 36-Pin SSOP: 941mW (above +70°C).
    - 40-Pin TQFN: 2963.0mW (above +70°C).
    Additional features include:
    - Push-pull outputs capable of sinking 10mA and sourcing 4.5mA.
    - Schmitt-trigger logic inputs with optional internal pullups.
    - Transition detection for up to seven ports (P24-P30), which trigger an interrupt on port P31 upon detecting a change in logic level.
    - Compatible with SPI, QSPI, and MICROWIRE protocols.
    Product Features and Advantages
    The MAX7301 excels in several aspects:
    1. Flexible Configuration: Each port is individually configurable, enabling diverse use cases.
    2. High Reliability: Withstanding extreme temperatures (-40°C to +125°C), it is suitable for harsh environments.
    3. Energy Efficiency: Extremely low shutdown current minimizes standby power consumption.
    4. Robust Design: Internal pullups and Schmitt triggers ensure noise immunity and stable operation.
    5. Interrupt Capability: The interrupt-driven transition detection simplifies event handling in real-time applications.
    6. Compact Packaging: Available in 28-, 36-, and 40-pin options, it occupies minimal PCB space.
    Application Case Studies and Usage Tips
    The MAX7301 is highly versatile and can be deployed in various scenarios:
    1. Industrial Control Systems: Used to monitor and control multiple sensors or actuators simultaneously.
    2. Automotive Applications: Ideal for interfacing with dashboard indicators, warning lights, and other control systems.
    3. Home Automation: Control lighting, fans, or smart appliances via GPIO ports.
    4. Gaming Equipment: Facilitates real-time input/output operations in arcade or gaming consoles.
    Usage Recommendations:
    - Ensure proper biasing of the ISET pin using a 39kΩ to 120kΩ resistor to avoid unintended behavior.
    - Always configure unused pins as outputs during power-up to prevent floating states.
    - Utilize the transition detection feature to minimize processing overhead in event-driven applications.
    Compatibility and Support
    The MAX7301 is fully compatible with popular SPI and QSPI interfaces, ensuring seamless integration with existing microcontroller ecosystems. Maxim Integrated provides extensive documentation, software libraries, and technical support to assist developers.
    Common Issues and Solutions
    Here are some typical issues users might encounter:
    1. Unstable Pin Behavior:
    - Cause: Improper pullup configuration.
    - Solution: Ensure internal pullup resistors are enabled where necessary.
    2. Incorrect Data Transmission:
    - Cause: Timing violations.
    - Solution: Adhere strictly to specified timing parameters during SPI communication.
    3. Unexpected Interrupts:
    - Cause: Incorrect mask settings.
    - Solution: Verify mask register configurations to targ

MAX7301AGL参数

参数
最大工作供电电压 -
拉电流 -
灌电流 -
I/O数量 -
最大时钟频率 26MHz
中断输出 -
典型供电电流 -
最小工作供电电压 2.5V
支持协议 -
通用封装 QFN-EP-40
安装方式 贴片安装

MAX7301AGL厂商介绍

Maxim Integrated(美信集成)是一家全球领先的半导体设计公司,专注于模拟、混合信号和微处理器解决方案。公司成立于1983年,总部位于美国加州圣何塞。

Maxim Integrated的主要产品分为以下几类:
1. 电源管理:包括电源管理IC、电池管理、电源转换器等,广泛应用于移动设备、工业控制等领域。
2. 微控制器:包括微处理器、微控制器等,应用于智能家居、物联网、医疗设备等领域。
3. 接口产品:包括以太网、串行通信、USB等接口产品,应用于通信、计算机等领域。
4. 传感器:包括温度、湿度、压力等传感器,应用于汽车、工业控制等领域。
5. 射频和无线:包括无线通信、射频放大器等产品,应用于无线通信、**通信等领域。

Maxim Integrated的优势在于:
1. 强大的研发能力:拥有超过4000项专利,持续推出创新产品。
2. 丰富的产品线:提供超过7万种产品,满足不同客户的需求。
3. 广泛的应用领域:产品广泛应用于消费电子、工业、汽车等领域。
4. 优质的客户服务:提供技术支持、定制解决方案等服务,满足客户的个性化需求。

MAX7301AGL数据手册

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MAXIM INTEGRATED I/O扩展器 MAXIM INTEGRATED MAX7301AGL MAX7301AGL数据手册

MAX7301AGL封装设计

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