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ShivaKi's avatar
ShivaKi
Icon for New Contributor rankNew Contributor
1 year ago

Cyclone V part number 5CEBA7F27C8N

Hello, In the Cyclone V part 5CEBA7F27C8N, please provide below inputs 1. The slew rate given in datasheet is mentioned as HIGH or LOW, could you provide the slew rate value for HIGH and LOW. 2. D...
Configuration
AqidAyman_Altera's avatar
AqidAyman_Altera
Icon for Regular Contributor rankRegular Contributor
1 year ago

For Q2, Cyclone V device support hot-socketing feature where signals can be driving I/O pins before or during power up and power down without damaging the device. Refer https://www.intel.com/content/www/us/en/docs/programmable/683375/current/hot-socketing-feature.html. However, please be aware on the +-10% of 3.3V as it might exceed maximum value from the datasheet. Please also noted on the Power-On-Reset (POR) monitoring certain power supplies where it keeps the Cyclone® V device in the reset state until the power supply outputs are within the recommended operating range.


For Q3, both is correct as the I/O pins are tied to weak pull up that is why the pin is experiencing high impedance (High Z).


  • ShivaKi's avatar
    ShivaKi
    Icon for New Contributor rankNew Contributor
    1 year ago

    Hello,

    Related to Q3: During powerup and configuration, if user IO pins are connected to external supply voltages(coming from signals connected from other sources), Will it cause issue with Cyclone V device or for Configuring Cyclone V device.

    Please confirm