Hey guys,
I just purchased both a 3pin 4.00MHz Ceramic Resonator (CST4.00MGW) aswell as a 20MHz "Crystal for MPU Clock" (20.000m-hc49). I want to connect one of them up to my PIC16F877 as a clock. Now my question is as follows:
For the CERAMIC RESONATOR : DO i need additional circuitry ? if not , is there polarity on the resonator? ie: do i need to connect them in a specific way to my CLK in CLK out ? and is the middle pin the ground pin ?
Same for the Crystal , do i need any additonal capacitors or resistors ? is there polarity ?
One more question.
Lets say I output a logical 1 to one of the ports on my PIC, say RA0, does that mean the PIC gives a VOLTAGE at that pin ? or is it a current? and how much (voltage or current) ? what is the name of this parameter ?
thanks guys
I just purchased both a 3pin 4.00MHz Ceramic Resonator (CST4.00MGW) aswell as a 20MHz "Crystal for MPU Clock" (20.000m-hc49). I want to connect one of them up to my PIC16F877 as a clock. Now my question is as follows:
For the CERAMIC RESONATOR : DO i need additional circuitry ? if not , is there polarity on the resonator? ie: do i need to connect them in a specific way to my CLK in CLK out ? and is the middle pin the ground pin ?
Same for the Crystal , do i need any additonal capacitors or resistors ? is there polarity ?
One more question.
Lets say I output a logical 1 to one of the ports on my PIC, say RA0, does that mean the PIC gives a VOLTAGE at that pin ? or is it a current? and how much (voltage or current) ? what is the name of this parameter ?
thanks guys