27220 Parallax Inc, 27220 Datasheet - Page 19

• Manufacturer Part Number: 27220
• Description: BOOK STAMPWORKS
• Manufacturer: Parallax Inc

Specifications of 27220

• Accessory Type: Booklet
• Product: Microcontroller Accessories
• Lead Free Status / RoHS Status: Not applicable / Not applicable
• For Use With/related Products: StampWorks
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Not applicable / Not applicable

Preparing the StampWorks Lab · Page 9
NOTES ON USING INTEGRATED CIRCUITS IN STAMPWORKS
EXPERIMENTS
There are two ways to draw integrated circuits (ICs) in a schematic: One way is
considered “chip-centric” in which I/O pins appear in the schematic according to their
StampWorks
physical location on the device.
uses schematics drawn for efficiency,
meaning that I/O pins are placed to make the schematic legible. I/O pins on all
chips are counted according to their indicator, starting with Pin 1 and counting in a
counter-clockwise direction as shown below: