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SparkFun Electronics will be closed in observance of memorial day on Monday, May 29th. We will resume normal business hours on Tuesday, May 30th. Any orders placed after 2pm Mountain Time on Friday, May 26th will process and ship out on Tuesday, May 30th.

dbleonard

Member Since: October 12, 2009

Country: United States

  • I would like to note that the PCA9555N mentioned above has internal pull-up resistors. This chip and the PCA9535 appear to require external pull-up resistors.

No public wish lists :(