From the bottom view, the pin count direction is

From the bottom view, the pin count direction is

• A. CW
• B. CCW
• C. Up
• D. Down

Answer: (A)

Pin numbering on ICs follows a fixed path around the package. From the top view, you start at pin 1 (marked by a notch or dot) and the numbers increase as you move around the package in a counterclockwise direction. If you flip the package and look from the bottom, you’re effectively looking through the card the other way, so the same sequence appears to run in the opposite direction—clockwise. That’s why, from the bottom view, the pin count direction is clockwise. This convention helps keep footprints and datasheets consistent when switching between top and bottom perspectives. The other options don’t fit because up or down aren’t about how numbers circulate the package, and counterclockwise is the top-view direction, which becomes clockwise from the bottom.

Pin numbering on ICs follows a fixed path around the package. From the top view, you start at pin 1 (marked by a notch or dot) and the numbers increase as you move around the package in a counterclockwise direction. If you flip the package and look from the bottom, you’re effectively looking through the card the other way, so the same sequence appears to run in the opposite direction—clockwise. That’s why, from the bottom view, the pin count direction is clockwise. This convention helps keep footprints and datasheets consistent when switching between top and bottom perspectives. The other options don’t fit because up or down aren’t about how numbers circulate the package, and counterclockwise is the top-view direction, which becomes clockwise from the bottom.