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PCA9555—带中断的16位I2C和SMBus IO口产品

消耗积分:10 | 格式:rar | 大小:214 | 2010-03-12

李艳

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The PCA9555 is a 24-pin CMOS device that provides 16 bits of General Purpose parallel
Input/Output (GPIO) expansion for I2C-bus/SMBus applications and was developed to
enhance the NXP Semiconductors family of I2C-bus I/O expanders. The improvements
include higher drive capability, 5 V I/O tolerance, lower supply current, individual I/O
configuration, and smaller packaging. I/O expanders provide a simple solution when
additional I/O is needed for ACPI power switches, sensors, push buttons, LEDs, fans, etc.

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