What are the differences between SIO and GPIO pins in PSoC® 3 and PSoC 5LP?
Table 1 summarizes the major differences between SIO (Separate Input Output) and GPIO (General purpose input output) pins in PSoC3 and PSoC 5LP.
Table 1. Differences Between SIO and GPIO Pins
| Feature |
SIO |
GPIO |
| Current Sink |
25 mA/pin |
8 mA/pin |
Programmable
Output Level (Voh) |
Yes |
No |
Programmable
Input Threshold |
Yes |
No |
| Hot Swap |
Yes |
No |
Overvoltage
Tolerance |
6 V |
VDDIO+0.5 V |
| LCD Drive |
No |
Yes |
| CapSense |
No |
Yes |
Analog
Connectivity |
No |
Yes |
Physical
Availability |
Port 12 |
Multiple other ports |
For more information on using SIO pins, please refer to AN60580 - SIO Tips and Tricks in PSoC® 3 / PSoC 5LP.
For usage details of GPIO pins, refer to AN72382 - Using PSoC® 3 and PSoC 5LP GPIO Pins.
Version: **
Translation - Japanese: PSoC® 3 and PSoC 5LP の SIO と GPIO ピンの違い - KBA91716 - Community Translated (JA)
