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Altera_Forum's avatar
Altera_Forum
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9 years ago

MAX10 IO Buffer output impedance

Hi, I was just wondering whether anyone have idea regarding typical value of MAX10 GPIO's output impedance. Thanks in advance. Best -Taufiq
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
9 years ago

Output impedance can be best derived from I/V slope in output characteristics defined in IBIS files. I see a range of about 6 ohms with 16 mA drive strength up to 30 ohms with 4 mA drive strength for LVCMOS30 typical curves.