Package Parameter Guidelines

Package Parameter Guidelines - DS930

Spartan UltraScale+ FPGA Data Sheet: DC and AC Switching Characteristics (DS930)

Document ID

DS930

Release Date

2025-12-19

Revision

1.2 English

The parameters in this section provide the necessary values for calculating timing budgets for clock transmitter and receiver data-valid windows.

Table 1. Package Skew
Symbol	Description	Device	Package	Value	Units
PKGSKEW	Package Skew^{1, 2}	XCSU10P	CMVA361	56	ps
			CMVA529	58	ps
			SBVB625	81	ps
		XCSU25P	CMVA361	56	ps
			CMVA529	58	ps
			SBVB625	81	ps
		XCSU35P	CMVA361	56	ps
			CMVA529	58	ps
			SBVB625	81	ps
		XCSU45P
		XCSU60P
		XCSU65P
		XCSU100P
		XCSU150P
		XCSU200P
These values represent the worst-case skew between any two SelectIO resources in the package: shortest delay to longest delay from die pad to ball. Package delay information is available for these device/package combinations. This information can be used to deskew the package.