Package Parameter Guidelines

Virtex UltraScale+ FPGA Data Sheet: DC and AC Switching Characteristics (DS923)

Document ID

DS923

Release Date

2024-08-09

Revision

1.20 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}	XCVU3P	FFVC1517	197	ps
		XCVU5P	FLVA2104	175	ps
			FLVB2104	225	ps
			FLVC2104	216	ps
		XCVU7P	FLVA2104	175	ps
			FLVB2104	225	ps
			FLVC2104	216	ps
		XCVU9P	FLGA2104	217	ps
			FLGB2104	275	ps
			FLGC2104	299	ps
			FSGD2104	229	ps
			FLGA2577	149	ps
		XCVU11P	FLGF1924	180	ps
			FLGB2104	216	ps
			FLGC2104	175	ps
			FSGD2104	224	ps
			FLGA2577	154	ps
		XCVU13P	FHGA2104	215	ps
			FHGB2104	259	ps
			FHGC2104	182	ps
			FIGD2104	198	ps
			FLGA2577	140	ps
PKGSKEW (cont'd)	Package Skew (cont'd)^{1, 2}	XCVU19P	FSVA3824	323	ps
		XCVU19P	FSVB3824	246	ps
		XCVU23P	VSVA1365	134	ps
		XCVU23P	FSVJ1760	187	ps
		XCVU27P	FIGD2104	198	ps
		XCVU27P	FSGA2577	139	ps
		XCVU29P	FIGD2104	198	ps
		XCVU29P	FSGA2577	139	ps
		XCVU31P	FSVH1924	165	ps
		XCVU33P	FSVH2104	194	ps
		XCVU35P	FSVH2104	200	ps
		XCVU35P	FSVH2892	241	ps
		XCVU37P	FSVH2892	278	ps
		XCVU45P	FSVH2104	200	ps
		XCVU45P	FSVH2892	241	ps
		XCVU47P	FSVH2892	278	ps
		XCVU57P	FSVK2892	278	ps
		XQVU3P	FFRC1517	176	ps
		XQVU7P	FLRA2104	175	ps
		XQVU7P	FLRB2104	224	ps
		XQVU11P	FLRC2104	174	ps
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.