With reference to LS1021A, what is the input/output capacitance of IntegratedFlashCcontroller (IFC) port pins?
Unfortunately, most recent data sheet (Rev. 6, 07/2018) doesn't provide requested information.
In the processor's IBIS model IFC pins are defined as:C_pin (avg) 1.35pFR_pin (avg) 0.4OhmL_pin (avg) 3.4nH
Thanks for the prompt reply. With regards to the reference circuity you attached, C_pin (out of IBIS) file is a part of the overall capacitive value, seen from outside of the package.
Taking the information for SYSCLK as an example, IBIS file defines ~1.6pF for C_pin and C_comp < 3pF. Data sheet specifies 7pF typ (12pF w.c.) as input capacitance for SYSCLK. How to match data from IBIS file and data sheet?
Thanks in advance.
The data sheet has general values that may be worst-case and may be carried over from designs in general. In some cases, those values are appropriate. The IBIS model would have the more accurate values, from what the Design team has given us.
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