Schmitt Trigger inputs for 18M2?

[Dave E]

Does anyone know where I can get info on which 18M2 input pins, if any, are schmitt trigger type?

I have looked on the Rev-Ed site but have not found any tech data except the several page long PDF info sheet. Also searched Microchip site for 18M2 but found nothing.

Thanks,
Dave E

 

[westaust55]

Closest you will find at this time is the PIC16F1827 datasheet on the Microchip site.

Then you can always do some tests to verify.

 

[hippy]

Table 1-2 in the 16F1827 datasheet is what you want to look at, but the basic answer is all 18M2 digital input pins are TTL, except when used for on-chip digital input functions like HSERIN when they become Schmitt Trigger.

This generally shouldn't be a problem but it could mean that a particular signal may work with SERIN but not with HSERIN on the very same pin, or vice-versa. This is a consequence of Microchip's silicon design which we have no control over.