XCKU085

AMDKintex UltraScale

The XCKU085 is a Kintex UltraScale FPGA from AMD, built on a 20 nm process. It provides 497,520 LUT6 look-up tables (1,088,000 system logic cells), 995,040 flip-flops, 57 Mb of block RAM and 4,100 DSP slices. It offers up to 676 user I/O pins and 56 GTH/GTY transceivers at up to 16.3 Gb/s, with hard PCI Express Gen3 blocks. It is available in 3 packages, from the A1517 (40 × 40 mm) to the F1924 (45 × 45 mm). Temperature grades: commercial, extended, industrial. Designs are built with AMD Vivado.

497,520LUTs (LUT6)

4,100DSP slices

57 MbBlock RAM

676Max. user I/O

56Transceivers (16.3 Gb/s)

Specifications

Vendor	AMD
Family	Kintex UltraScale
Series	UltraScale
Process	20 nm
Configuration memory	SRAM
Look-up tables (LUT6)	497,520
Logic block	6-input look-up table, fracturable into two LUT5 with shared inputs
LUT4 equivalent (approx.)	≈796,032
System logic cells	1,088,000
Flip-flops	995,040
Distributed RAM	13,770 Kb
Block RAM	57 Mb (1620 × 36 Kb)
DSP (DSP slice)	4,100
Clock management tiles	22

Max. user I/O	676
HP I/O	572
Differential pairs	320
GTH/GTY transceivers	56 × 16.3 Gb/s
PCI Express	4× Gen3
Analog / monitor	System Monitor
Design tool	AMD Vivado

Packages

Package	Size (mm)	Pitch (mm)	User I/O	Transceivers
A1517	40 × 40	1.0	624	48
B1760	42.5 × 42.5	1.0	676	44
F1924	45 × 45	1.0	624	56

Package names are shown as in the selection guide; the full ordering code adds speed grade and temperature (see the data sheet).

Speed and temperature grades

Temperature grade	Junction range	Speed grades
Commercial (C)	0 to 85 °C	-1
Extended (E)	0 to 100 °C	-2, -3
Industrial (I)	−40 to 100 °C	-1, -1L, -2

Alternatives to the XCKU085

Closest matches in other families and vendors by logic, DSP, memory, I/O and transceivers. Check pin compatibility and tools before migrating.

Device	LUTs	Vendor logic	DSP	Block RAM	Max I/O	Transceivers	PCIe	CoreScore
XC7VX980TAMD Virtex-7	612,000 LUT6	979K LC	3,600	52.7 Mb	900	72 GTH 13.1 Gb/s	Gen3	3,040 haps_dx7
XC7VX690TAMD Virtex-7	433,200 LUT6	693K LC	3,600	51.7 Mb	1,000	80 GTH 13.1 Gb/s	Gen3	—
XC7VX1140TAMD Virtex-7	712,000 LUT6	1139K LC	3,360	66.1 Mb	1,100	96 GTH 13.1 Gb/s	Gen3	—
XC7VX550TAMD Virtex-7	346,400 LUT6	554K LC	2,880	41.5 Mb	600	80 GTH 13.1 Gb/s	Gen3	—
XCKU11PAMD Kintex UltraScale+	299,000 LUT6	653K SLC	2,928	21.1 Mb	512	52 GTH/GTY 32.75 Gb/s	Gen3	—
XCKU13PAMD Kintex UltraScale+	341,000 LUT6	747K SLC	3,528	26.2 Mb	304	28 GTH 16.3 Gb/s	—	—

Compare side by side: XCKU085 vs XC7VX980T, XCKU085 vs XC7VX690T, XCKU085 vs XC7VX1140T, XCKU085 vs XCKU13P.

Compare the XCKU085 with up to three other FPGAs.

XCKU085 quick facts

How many LUTs does the XCKU085 have?

The XCKU085 has 497,520 LUT6 look-up tables (1,088,000 system logic cells as published by AMD). Logic block: 6-input look-up table, fracturable into two LUT5 with shared inputs.

How many DSP blocks does the XCKU085 have?

The XCKU085 has 4,100 DSP slices and 57 Mb of block RAM.

Does the XCKU085 have transceivers?

Yes, 56 GTH/GTY transceivers at up to 16.3 Gb/s.

What are the alternatives to the XCKU085?

Devices of similar size in other families include XC7VX980T (AMD Virtex-7), XC7VX690T (AMD Virtex-7), XC7VX1140T (AMD Virtex-7).

Which software is used to design with the XCKU085?

Designs for the XCKU085 are built with AMD Vivado.

Other Kintex UltraScale devices

Device	LUTs	Vendor logic	DSP	Block RAM	Max I/O	Transceivers	PCIe	CoreScore
XCKU025	145,440 LUT6	318K SLC	1,152	12.7 Mb	312	12 GTH/GTY 16.3 Gb/s	Gen3	—
XCKU035	203,128 LUT6	444K SLC	1,700	19 Mb	520	16 GTH/GTY 16.3 Gb/s	Gen3	—
XCKU040	242,400 LUT6	530K SLC	1,920	21.1 Mb	520	20 GTH/GTY 16.3 Gb/s	Gen3	1,024 hpc_ku
XCKU060	331,680 LUT6	726K SLC	2,760	38 Mb	624	32 GTH/GTY 16.3 Gb/s	Gen3	—
XCKU085	497,520 LUT6	1088K SLC	4,100	57 Mb	676	56 GTH/GTY 16.3 Gb/s	Gen3	—
XCKU095	537,600 LUT6	1176K SLC	768	59.1 Mb	702	64 GTH/GTY 16.3 Gb/s	Gen3	—
XCKU115	663,360 LUT6	1451K SLC	5,520	75.9 Mb	832	64 GTH/GTY 16.3 Gb/s	Gen3	—

Source: AMD UltraScale FPGAs Product Selection Guide, XMP102 (v1.7). Data is extracted automatically from the vendor's selection guide; verify critical values in the device data sheet.