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isagani's avatar
isagani
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4 years ago
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EP3C5E144C7N and EP3C5E144C8N

Please advise difference between EP3C5E144C8N and EP3C5E144C7N? Can EP3C5E144C7N replace EP3C5E144C8N?
  • Shivam_Shobhit's avatar
    Shivam_Shobhit
    4 years ago

    Hi @isagani

    Hope you are doing well.

    The following handbook will make you understand what is the difference between EP3C5E144C8N and EP3C5E144C7N Cyclone III devices.

    Cyclone III Device Handbook Volume 1. Chapter 1. Cyclone III Device Family Overview ( Ref. Page 1-12)

    So after looking at the attached image and the handbook you will get that the numbers 7 and 8 in EP3C5E144C8N and EP3C5E144C7N model nos. represents the speed grade of the cyclone III device family.

    So speed grade of EP3C5E144C7N is higher than EP3C5E144C8N.

    Hence EP3C5E144C7N can replace EP3C5E144C8N as both are having the same package types but there will be an increase in speed grade.

    Hope this will resolve your issue.

    Regards,

    Shivam_Shobhit

Shivam_Shobhit's avatar
Shivam_Shobhit
Icon for New Contributor rankNew Contributor
4 years ago

Hi @isagani

Hope you are doing well.

The following handbook will make you understand what is the difference between EP3C5E144C8N and EP3C5E144C7N Cyclone III devices.

Cyclone III Device Handbook Volume 1. Chapter 1. Cyclone III Device Family Overview ( Ref. Page 1-12)

So after looking at the attached image and the handbook you will get that the numbers 7 and 8 in EP3C5E144C8N and EP3C5E144C7N model nos. represents the speed grade of the cyclone III device family.

So speed grade of EP3C5E144C7N is higher than EP3C5E144C8N.

Hence EP3C5E144C7N can replace EP3C5E144C8N as both are having the same package types but there will be an increase in speed grade.

Hope this will resolve your issue.

Regards,

Shivam_Shobhit

  • isagani's avatar
    isagani
    Icon for New Contributor rankNew Contributor
    4 years ago

    Hi Shivam,

    Thank your for the quick response. Can you help me on the speed grade 7 and 8 values?

    • Shivam_Shobhit's avatar
      Shivam_Shobhit
      Icon for New Contributor rankNew Contributor
      4 years ago

      Hey @isagani

      Hope this helps :

      Intel MAX and Classic devices use the speed grade to indicate the delay in nanoseconds (ns) through a macrocell in the device. For example, a MAX device with a -10 speed grade has a delay of 10 ns through a macrocell. Devices with low-speed grade numbers run faster than devices with high-speed grade numbers.

      Refer: Speed Grades

      Regards,

      Shivam_Shobhit

      • Anonymous's avatar
        Anonymous
        4 years ago

        @Shivam_Shobhit It is always best to provide the source for a cloned answer.

        Doc (not an Intel employee or contractor)