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SLabe
Partner
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Using 3.3V input with VCCIO @ 2.5V for Cyclone 10LP

Looking at the following document:  Intel® Cyclone® 10 LP Device Datasheet

In table 3 on Page 7 VI is listed as 3.6V max recommended operating condition regardless of VCCIO

In Table 14 on page 15 max ViH is listed as VCCIO + 0.3V

There is also mention in Table 3 of AN 447: Interfacing Intel FPGA Devices with 3.3/3.0/2.5 V LVTTL/LVCMOS I/O Systems regarding use of the PCI clamp diode, but this may or may not apply to the 10LP (which does seem to have the Diode option).

Could you help clarify this for us? Thank you,

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SLabe
Partner
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Hello, just enquiring if there is an update available for my customer. Thank you.

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