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PCA9670PW,118 PCA9670PW
Configuration
1 options
Configuration
24+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- NXP PCA9670PW, 118
- Type
- NXP
- Minimum package
- 2500 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- NXP
- Electronic Component
- PCA9670PW,118
- Electronic Component
- 1
- Package
- TSSOP-16
- Electronic Component
- I / O Expander
- Electronic Component
- 0.28g
- Electronic Component
- 1
- I / O
- 8
- Features
- Built-in LEDDriver; positions; and; PWMOutput
- Electronic Component
- BM0265968510
- Operating Temperature
- 40℃~+85℃
- Operating Voltage
- 2.3V~5.5V
- Interface Type
- I2C
- Current(IOL)
- 25mA
- Clock Frequency(fc)
- 1MHz
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
PCA9670PW,118 8位I²C总线I/O扩展器产品概述
一、产品定位与核心价值
PCA9670PW,118是恩智浦（NXP）推出的8位I²C总线I/O扩展器，核心解决微控制器（MCU）/系统级芯片（SoC）I/O口资源不足的问题。该器件通过极简的I²C接口即可扩展出8个独立GPIO通道，无需额外占用MCU数字引脚，能有效简化系统硬件设计、降低布线复杂度，同时具备宽电压兼容、强驱动能力与低功耗特性，适配工业、消费电子等多场景需求。
二、核心参数概览
该器件关键参数清晰明确，覆盖设计选型核心维度：
- 接口类型：标准I²C串行接口；
- I/O数量：8位通用输入输出（GPIO）；
- 中断输出：无（简化电路，侧重基础扩展）；
- 工作电压：2.3V~5.5V（兼容3.3V/5V主流系统）；
- 灌电流能力：最大25mA（直接驱动小负载）；
- I²C时钟频率：最高1MHz（支持高速数据传输）；
- 工作温度：-40℃~+85℃（工业级环境适应性）；
- 级联能力：最多支持64个设备（多I/O扩展需求）；
- 静态电流：典型值2.5μA（低功耗待机）；
- 封装形式：16-TSSOP（薄型小尺寸，节省PCB空间）；
- 品牌：恩智浦（NXP）。
三、I²C接口与多设备扩展
PCA9670PW,118采用标准I²C串行接口，仅需2条信号线（SDA数据端、SCL时钟端）即可实现与主机通信，相比并行接口大幅减少布线引脚与PCB空间。其I²C总线支持最高1MHz时钟速率，满足高速数据交互需求；同时通过硬件地址配置（兼容多设备级联逻辑），最多可在同一总线挂载64个该器件，实现数十至上百个I/O通道的扩展，适配复杂系统的I/O需求。
四、电气特性与可靠性设计
该器件在电气性能上兼顾兼容性与实用性：
- 宽电压兼容：2.3V~5.5V工作范围，直接适配3.3V MCU与5V电源系统，无需电平转换电路；
- 强驱动能力：单通道最大灌电流25mA，可直接驱动LED、小型继电器、蜂鸣器等负载，省去外接驱动；
- 低功耗待机：典型静态电流2.5μA，在电池供电/待机场景下有效延长设备续航；
- 工业级温度：-40℃~+85℃范围，满足工业现场、户外设备等恶劣环境的稳定运行。
五、封装与典型应用场景
16-TSSOP封装体积小巧（约4.4mm×6.4mm），适合高密度PCB设计，典型应用包括：
- 工业控制：传感器数据采集、继电器/电磁阀控制、设备状态监测；
- 消费电子：智能家居（智能开关、传感器节点）、便携式设备I/O扩展；
- 汽车电子：车载传感器接口、灯光控制辅助（适配-40~85℃环境）；
- 医疗设备：低功耗便携医疗仪器的输入输出扩展。
总结
PCA9670PW,118以极简I²C接口、宽电压兼容、强驱动能力为核心优势，是MCU I/O资源扩展的高性价比选择，适配工业、消费电子等多场景的I/O扩展需求，同时兼顾可靠性与低功耗设计。
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