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    首頁產品索引CAT9555

    CAT9555

    購買收藏
    ?I/O Port Expander, I2C / SMBus, 16-Bit, with Active Low Interrupt

    制造商：ON

    中文數據手冊

    產品信息

    The CAT9555 is a CMOS device that provides 16-bit parallel input/output port expansion for I2C and SMBus compatible applications. These I/O expanders provide a simple solution in applications where additional I/Os are needed: sensors, power switches, LEDs, pushbuttons, and fans.
    The CAT9555 consists of two 8-bit Configuration ports (input or output), Input, Output and Polarity inversion registers, and an I2C/SMBus-compatible serial interface.
    Any of the sixteen I/Os can be configured as an input or output by writing to the configuration register. The system master can invert the CAT9555 input data by writing to the active-high polarity inversion register.
    The CAT9555 features an active low interrupt output which indicates to the system master that an input state has changed.
    The three address input pins provide the device's extended addressing capability and allow up to eight devices to share the same bus. The fixed part of the I2C slave address is the same as the CAT9554, allowing up to eight of these devices in any combination to be connected on the same bus.
    • 400 kHz I
    • C bus compatible
    • 2.3 V to 5.5 V operation
    • Low standby current
    • 5.0 V tolerant I/Os
    • 16 I/O pins that default to inputs at power-up
    • High drive capability
    • Individual I/O configuration
    • Polarity inversion register
    • Active low interrupt output
    • Internal power-on reset
    • No glitch on power-up
    • Noise filter on SDA/SCL inputs
    • Cascadable up to 8 devices
    • Industrial temperature range

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    在線購買

    型號制造商描述購買
    CAT9555HV6I-GT2ONIC I/O EXPANDER I2C/SMBUS 24TQFN 立即購買
    CAT9555YI-T2ONI/O 擴展器 16 I2C，SMBus 400 kHz 24-TSSOP 立即購買
    CAT9555WI-T1ONI/O Expander 16 I2C, SMBus 400kHz 24-SOIC 立即購買
    CAT9555WI-- 立即購買
    CAT9555YI-- 立即購買

    技術資料

    標題類型大?。↘B）下載
    SOIC-24, 300 milsPDF55 點擊下載
    TSSOP24, 4.4x7.8PDF55 點擊下載
    TQFN24, 4x4PDF55 點擊下載
    I/O Port Expander, I2C / SMBus, 16-Bit, with Active Low InterruptPDF170 點擊下載
    CAT9555_PD.GIFUNKNOW15 點擊下載
    安森美半導體智能電網方案 UNKNOW136 點擊下載

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