KTS1620 Low Voltage 24-Bit I²C-bus I/O Expander
■KTS1620 is a 24-bit general-purpose I/O expander via the I²C bus for microcontrollers when additional I/Os are needed while keeping interconnections to the minimum.
■KTS1620 has separate power rails (VDD_I2C and VDD_P) for I²C bus and I/O ports, both ranging from 1.65V to 5.5V, allowing mixed power system where I²C bus power is not compatible with I/O port power.
■KTS1620 meets the I²C Fast-mode Plus spec up to 1MHz. External reset input, internal power-on reset and I²C software reset provide flexible ways to reset the IC. Four adjustable I²C slave addresses allow multiple KTS1620s in one I²C bus system.
■KTS1620 provides multiple ways to program the 24-bit I/O ports. When the port works as input, it can program the polarity, latch, pull-up, pull-down and interrupt functions. The interrupt function includes the level/edge trigger, mask, clear, status features. For system with noisy input, KTS1620 also provides debounce function with programmable debounce time. When the port works as output, it can program output stage with bank/pin selectable push-pull or open-drain options, it can also program four drive strengths of the output stage to optimize the rise/fall times.
■KTS1620 is available in a RoHS compliant 36-ball 2.6mm x 2.6mm FO-WLP66 and a 32-lead 5mm x 5mm x 0.75mm Thin-QFN package.
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Low Voltage 24-Bit I²C-bus I/O Expander 、 24-bit general-purpose I/O expander |
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[ Smartphone ][ Tablet ][ Wearables ][ Laptop ][ Desktop ] |
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Datasheet |
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Please see the document for details |
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FO-WLP66;Thin-QFNFO-WLP66-36;TQFN55-32;FO-WLP66-36 |
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English Chinese Chinese and English Japanese |
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November 2020 |
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Revision 04c |
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2.4 MB |
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