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    首頁(yè)產(chǎn)品索引CAT9555

    CAT9555

    購(gòu)買收藏
    ?I/O Port Expander, I2C / SMBus, 16-Bit, with Active Low Interrupt

    制造商:ON

    中文數(shù)據(jù)手冊(cè)

    產(chǎn)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

    電路圖、引腳圖和封裝圖

    在線購(gòu)買

    型號(hào)制造商描述購(gòu)買
    CAT9555HV6I-GT2ONIC I/O EXPANDER I2C/SMBUS 24TQFN 立即購(gòu)買
    CAT9555YI-T2ONI/O 擴(kuò)展器 16 I2C,SMBus 400 kHz 24-TSSOP 立即購(gòu)買
    CAT9555WI-T1ONI/O Expander 16 I2C, SMBus 400kHz 24-SOIC 立即購(gòu)買
    CAT9555WI-- 立即購(gòu)買
    CAT9555YI-- 立即購(gòu)買

    技術(shù)資料

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

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