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XL8574ATS是信路达(XINLUDA)推出的一款8位通用数字I/O扩展器,专为解决嵌入式系统中MCU/MPU的I/O资源不足问题设计。该器件基于I2C串行通信接口,具备宽电压范围、中断输出、工业级温区等核心特性,适配消费电子、工业控制、智能家居等多领域应用场景,是提升系统I/O灵活性的高性价比选择。
XL8574ATS聚焦“低成本I/O扩展”与“低功耗通信”两大需求,通过I2C串行接口实现8个独立I/O通道的扩展,无需占用MCU过多引脚资源。其设计兼顾性能与可靠性,既满足消费类电子的紧凑空间需求,也能适应工业环境的宽温与电压波动场景,覆盖从便携式设备到工业控制的多类应用。
仅需SDA(数据线)、SCL(时钟线)两根引脚即可实现与主机通信,大幅减少布线复杂度;支持多设备级联(通过A0~A2地址引脚配置7位I2C地址,最多扩展8个器件),满足大规模I/O扩展需求。
INT引脚为开漏输出,当任意输入引脚逻辑状态变化时,INT输出低电平(需外部上拉),主机可通过读取引脚或寄存器获取最新状态,无需持续轮询,有效降低系统功耗。
8个I/O通道均为双向可编程:输入模式下支持高阻态或弱上拉(结合应用电路),输出模式下支持推挽(外接上拉)或开漏逻辑,适配不同负载需求。
器件工作电流典型值<1mA,待机模式下功耗进一步降低,适合电池供电的物联网设备、便携式电子等场景。
XL8574ATS凭借紧凑封装与宽适配性,广泛应用于:
XL8574ATS通过优化的硬件设计与丰富功能,为嵌入式系统提供高性价比I/O扩展方案,有效提升系统灵活性与资源利用率,满足不同场景下的I/O扩展需求。
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WMSIC turns product data, package visuals, BOM context, and sourcing signals into practical RFQ notes for buyers.
Model text, package form, tray or reel details, and visual evidence are reviewed together before RFQ feedback.
BOM lines are compared by package, parameters, quantity, and workable alternatives for cleaner sourcing decisions.
Stock routes, quotation confidence, lead-time notes, and shipment feasibility are checked before sales follow-up.
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The buyer shares the full part number, package requirement, quantity, destination, and available product photos so the quotation can record the exact version under review.
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The request connects the previously used model, current demand, package evidence, target timing, and replenishment sourcing route.
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