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PCF8574T/3,518 PCF8574T
Configuration
1 options
Configuration
26+
Available for RFQ
Technical data
Product details
20
specifications
Core information
- Product name
- NXP PCF8574T / 3, 518
- Type
- NXP
- Unit
- Electronic Component
- Minimum package
- 1000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- Electronic Component
- Electronic Component
- NXP
- Electronic Component
- PCF8574T/3,518
- Electronic Component
- 1
- Package
- SOIC-16-300mil
- Electronic Component
- I / O Expander
- Electronic Component
- 0.596g
- Electronic Component
- 1
- I / O
- 8
- Features
- Built-in LEDDriver; positions; and
- Electronic Component
- BM0000000627
- Operating Temperature
- 40℃~+85℃
- Operating Voltage
- 2.5V~6V
- Interface Type
- I2C
- Current(IOH)
- 30uA
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
PCF8574T/3,518 产品概述
一、产品简介
PCF8574T/3,518 是一款由恩智浦半导体（NXP）公司推出的 USB 及 I/O 扩展器，采用 I²C 接口协议设计，适用于多种嵌入式系统与电子设备的 I/O 扩展需求。该器件通过串行通信方式与主控单元进行数据交换，能够有效地增加系统的输入/输出端口数量，从而提升设计的灵活性与功能扩展能力。
二、核心特点
I/O 数量与接口：PCF8574T 提供 8 个 I/O 端口，通过 I²C 接口与主机进行通信，简化了 PCB 布线并减少了所需的引脚数量。这使得其在空间有限的应用中尤为适合。
中断输出功能：该器件支持中断输出功能，当 I/O 状态发生变化时能够实时通知主控制器，进而降低了主机的处理压力，提高系统响应速度。
电源要求与功耗：PCF8574T 的工作电压范围为 2.5V 到 6V，适应于多种电源环境。该器件提供的输出电流为 300µA（拉或灌输出），确保能够满足大部分低功耗应用中对外部设备的驱动需求。
工作温度范围：PCF8574T 可在 -40°C 到 85°C 的环境下稳定工作，使其特别适合工业和汽车等恶劣环境中的应用。
封装类型：该器件采用 16-SOIC 表面贴装型封装（0.295 英寸宽，7.50mm），符合现代电子设备的小型化设计需求，便于集成到各种电路板中。
快速时钟频率：PCF8574T 支持高达 100kHz 的 I²C 时钟频率，使得数据传输速率更快，能够满足对实时性要求较高的应用。
三、应用场景
PCF8574T 的广泛应用场景涵盖了多个领域，具体包括：
消费电子产品：如智能家居设备、个人电脑及控制面板，使用 PCF8574T 可有效扩展 I/O 接口，提高与传感器、按键及其他外设的交互能力。
工业自动化：在工业控制系统中，PCF8574T 可以连接多路开关、传感器及执行器，提供灵活而可靠的 I/O 扩展方案。
汽车电子：在汽车控制系统中，其耐高温的特性使得 PCF8574T 可以用于各种汽车电子模块，如仪表盘、车载信息娱乐系统等。
机器人技术：在机器人控制系统中，PCF8574T 可以用于快速处理输入信号以及控制输出动作，提升机器人的智能化水平和响应能力。
四、总结
PCF8574T/3,518 是一款高性能的 I²C I/O 扩展器，凭借其卓越的电源要求、工作温度范围和接口设计，为多种电子设备提供了灵活的解决方案。恩智浦的这个产品不仅有助于简化电路设计，还能够有效支持复杂系统中的多种功能需求，是任何希望提升其电子产品功能和可靠性的设计师值得考虑的选项。通过利用该产品，设计师可以实现更为复杂和高效的应用，这使得 PCF8574T/3,518 在现代电子设计中占据了重要位置。
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