Guidelines for new components that will be added to the UTAT Altium library.

Note: checking the boxes will show up for everyone. Copy the list if you want to check things off yourself.

Components

• [ ] Link datasheet
• [ ] Add suppliers
• [ ] All appropriate parameters added

Symbols

• [ ] Symbol grid is 100mil
• [ ] Pins start with number 1 and are exactly 200mil long
  • [ ] Exposed pad should be the next available designator (ex. pin 9 on an 8-pin chip)
• [ ] Pins have a descriptive, short label from the datasheet
  • [ ] Exposed pad should be labeled PAD or PAD_GND if it’s recommended that it gets tied to ground. Don’t just call it GND.
  • [ ] Connector mounting elements should be MP (Mounting Pad) for SMT or MH (Mounting Hole) for TH
• [ ] Pins have the correct type (input/output/power/passive)
• [ ] Active low pins labeled correctly. Don’t use an overbar, use an ‘n’ or ‘_N’.
• [ ] Power pins in top left, ground pins on bottom right (along with PADs)
• [ ] Generally, inputs on the left and outputs on the right
  • [ ] Consider the flow of data and power and try to achieve a left-to-right flow, don’t literally do input pins on the left and output pins on the left.
• [ ] Group functionally similar pins together
• [ ] Designator is a letter followed by a ‘?’ (designator reference)
  • [ ] Connectors MUST use J?, P? is only for cable ends.
• [ ] Design Item ID is same as the manufacturer part number of the component

Footprints

• [ ] Name the footprint the same as the datasheet
  • [ ] Use IPC naming conventions if no name is given on the datasheet
• [ ] Are the dimensions correct? Are you sure?