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Altera_Forum
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10 years ago

No ground pin in Max V 5M80ZE64I5N CPLD

We are planning to use Altera Max V 5M80ZE64I5N CPLD in oneof our designs. We need 54 user I/O’s in the design. As per the link https://www.altera.com/content/dam/altera-www/global/en_us/pdfs...
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Altera_Forum
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10 years ago

Hi Sinora, there is no Groung "GND" pin on this EQFP package. The exposed pad is an extra pad underneath the EQFP package that may act as a ground connection and/or as a heat sink for the package. The pad size is indicated by E2*D2 in package outline, and with the pad soldered down onto the ground plane heat is passed into the PCB. This exposed pad also gives a solid ground connection.