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Altera_Forum
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12 years ago

Some problem about CPLD EPM570

Hello, I have some problems about EPM570. What's the GCLK maximum value that could be accepted? I searched datasheet and found it can input higher than 100 MHz. But I input a 100 MHz XTAL and C...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
12 years ago

You're looking at your clock setup time. Your tco ( clock-to-output ) worst case shows 12.908ns or a maximum of 77.47133560582584mhz, so you're even pushing it with an 80mhz clock signal...

-Mux