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What are the differences between the DS21455/DS21458 and the older DS21Q55?

April 26, 2017differences ds21q55 Older

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What are the differences between the DS21455/DS21458 and the older DS21Q55?

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A9. The DS21Q55 is a quad-port, 27mm x 27mm multichip module consisting of four independent DS2155 transceivers. The DS21455 is a monolithic version of the DS21Q55, and is meant to be a drop-in replacement that is package, pin, and software compatible. The DS21458 contains exactly the same die as the DS21455 and is software compatible, but it is produced in a smaller, 17mm x 17mm package. Note: New designs should use the DS21455 instead of the DS21Q55.