5 Attributes of a pin

Use the keyboard command ee to open an attribute editor dialog box. Make sure you are in the “selection mode” (type the s key). Click one pin so that the attribute editor reflects the attributes of that pin.

• pintype: this indicates the type of pin. Here is a list of pin types that are in use:
  • in: input.
  • out: output.
  • io: input/output.
  • oc: open collector.
  • oe: open emitter.
  • pas: passive.
  • tp: totem pole.
  • tri: tristate.
  • clk: clock.
  • pwr: power (includes ground).
• pinnumber: this is the number of a pin on its package. This number must match the actual pin number as specified in a datasheet. Note that some parts may come in different packages, and the pin number assignment for each package is different. In this case, you need to define a different symbol for each package. If different packages share the same pin number assignment, you can use a single symbol definition.
• pinseq: pin sequence number. this number needs to be unique within the same symbol. The easiest method is to use the pin number also as the pin sequence number.
• pinlabel: this is the name of a pin. It is not used for anything other than displaying the purpose of a pin. Nonetheless, it makes schematic capture much easier with pin labels defined. Certain parts, such as resistors and unpolarized capacitors, may have empty pin labels.