I have a bag of the ZTT-20.00MT ones (digikey partno:X909-ND) that I use
on the 16f877 with 100% success. I use the HS oscilator mode.(highest gain)

Peter

-----Original Message-----
From: pic microcontroller discussion list
[mailto:PICLIST@MITVMA.MIT.EDU]On Behalf Of Marius Bratrein
Sent: Tuesday, March 21, 2000 9:38 PM
To: PICLIST@MITVMA.MIT.EDU
Subject: acceptable resonators for PIC MCUs


    Does anyone have experience using a ceramic resonator at clock speeds
greater than 16 mhz?  Can anyone tell me which resonators will work?  I
have tried an ECS ZTT series 20mhz resonator, but as far as I can tell,
the PIC does not have enough gain to drive it.  Thanks