3699 - iCE40LP: What is the output impedance of HCIOT_2 on the iCE40 LP1K device?

3699 - iCE40LP: What is the output impedance of HCIOT_2 on the iCE40 LP1K device?

Description:

Refer to the Input/Output Buffer Information Specification (IBIS) model for the V-I characteristics of the LVCMOS I/O pin on the iCE40 device. The lvc330IO model has the V-I curve values for different voltages, and you can use these values to calculate the characteristics impedance for both conditions, pullup and pulldown.

To download the IBIS models go to

http://www.latticesemi.com/Products/FPGAandCPLD/iCE40.aspx