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    首頁(yè)產(chǎn)品索引CAT9554

    CAT9554

    購(gòu)買(mǎi)收藏
    ?I/O Port Expander, I2C / SMBus, 8-Bit, with Active Low Interrupt

    制造商：ON

    中文數(shù)據(jù)手冊(cè)

    產(chǎn)品信息

    The CAT9554 is a CMOS device that provides 8-bit parallel input/output port expansion for I2C and SMBus compatible applications. This I/O expander provides a simple solution in applications where additional I/Os are needed: sensors, power switches, LEDs, pushbuttons, and fans.
    The CAT9554 consist of an input port register, an output port register, a configuration register, a polarity inversion register and an I2C/SMBus-compatible serial interface.
    Any of the eight I/Os can be configured as an input or output by writing to the configuration register. The system master can invert the CAT9554 input data by writing to the active-high polarity inversion register.
    The CAT9554 features an active low interrupt output which indicates to the system master that an input state has changed.
    The device's extended addressing capability allows up to 8 devices to share the same bus. The CAT9554A is identical to the CAT9554 except the fixed part of the I2C slave address is different. This allows up to 16 of devices (eight CAT9554 and eight CAT9554A) 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
    • 8 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(mǎi)

    型號(hào)制造商描述購(gòu)買(mǎi)
    CAT9554HV4I-GT2ONI/O Expander 8 I2C, SMBus 400kHz 16-TQFN (4x4) 立即購(gòu)買(mǎi)
    CAT9554YI-GT2ONCAT9554 和 CAT9554A 是 CMOS 器件，提供 12C 和 SMBus 兼容的 8 位并行輸入/輸出端口擴(kuò)展。這些 I/O 擴(kuò)展器為需要額外 I/O 的應(yīng)用提供了簡(jiǎn)單的解決方案：傳感器、電源開(kāi)關(guān)、LED、按鈕和風(fēng)扇。 立即購(gòu)買(mǎi)
    CAT9554WI-GT2ONIC I/O EXPANDER I2C 8B 16SOIC 立即購(gòu)買(mǎi)
    CAT9554YI-G-- 立即購(gòu)買(mǎi)
    CAT9554WI-G-- 立即購(gòu)買(mǎi)

    技術(shù)資料

    標(biāo)題類型大?。↘B）下載
    TSSOP16, 4.4x5PDF52 點(diǎn)擊下載
    TQFN16, 4x4PDF55 點(diǎn)擊下載
    SOIC-16, 150 milsPDF54 點(diǎn)擊下載
    I/O Port Expander, I2C / SMBus, 8-Bit, with Active Low InterruptPDF151 點(diǎn)擊下載
    CAT9554_PD.GIFUNKNOW9 點(diǎn)擊下載

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