Xilinx VCU128 User Manual

Table 6: DDR4 Memory 72-bit I/F to FPGA U1 Banks 64, 65, and 66 (cont'd)
FPGA (U1) Pin
Schematic Net
Name
I/O Standard
Component Memory
Pin # Pin Name Ref. Des.
BE54 PL_DDR4_BA0 SSTL12_DCI N2 BA0 U17-U19 U73-U74
BE53 PL_DDR4_BA1 SSTL12_DCI N8 BA1 U17-U19 U73-U74
BG54 PL_DDR4_BG0 SSTL12_DCI M2 BG0 U17-U19 U73-U74
BG53 PL_DDR4_WE_B SSTL12_DCI L2 WE_B/A14 U17-U19 U73-U74
BJ54 PL_DDR4_RAS_B SSTL12_DCI L8 RAS_B/A16 U17-U19 U73-U74
BH54 PL_DDR4_CAS_B SSTL12_DCI M8 CAS_B_A15 U17-U19 U73-U74
BK53 PL_DDR4_CK_T DIFF_SSTL12_DCI K7 CK_T U17-U19 U73-U74
BK54 PL_DDR4_CK_C DIFF_SSTL12_DCI K8 CK_C U17-U19 U73-U74
BH52 PL_DDR4_CKE SSTL12_DCI K2 CKE U17-U19 U73-U74
BG52 PL_DDR4_ACT_B SSTL12_DCI L3 ACT_B U17-U19 U73-U74
BJ53 PL_DDR4_TEN SSTL12_DCI N9 TEN U17-U19 U73-U74
BJ52 PL_DDR4_ALERT_B SSTL12_DCI P9 ALERT_B U17-U19 U73-U74
BL48 PL_DDR4_PARITY SSTL12_DCI T3 PAR U17-U19 U73-U74
BH50 PL_DDR4_RESET_B LVCMOS12 P1 RESET_B U17-U19 U73-U74
BH49 PL_DDR4_ODT SSTL12_DCI K3 ODT U17-U19 U73-U74
BP49 PL_DDR4_CS_B SSTL12_DCI L7 CS_B U17-U19 U73-U74
The VCU128 DDR4 memory component interfaces adhere to the constraints guidelines
documented in the “DDR3/DDR4 Design Guidelines” secon of the UltraScale Architecture-Based
FPGAs Memory IP LogiCORE IP Product Guide (PG150). The VCU128 board DDR4 memory
component interface is a 40Ω impedance implementaon.
For more informaon on the internal VREF, see the “Supply Voltages for the SelectIO Pins VREF”
and the “Internal VREF” secons in the UltraScale Architecture SelectIO Resources User Guide
(UG571). For more details about the Micron DDR4 component memory, see the Micron
MT40A512M16LY data sheet at the Micron Technology website.
RLD3 Component Memory
[Figure 2, callout 5]
The 288 MB RLD3 72-bit wide component memory system is comprised of two 36-bit 1.125 Gb
RLDRAM3 devices located at U39 and U37.
• Manufacturer: Micron
• Part Number: MT44K32M36RB-107E
• Descripon:
○ 1.125 Gb (32 Mb x 36)
Chapter 3: Board Component Descriptions
UG1302 (v1.0) December 21, 2018 www.xilinx.com
VCU128 Board User Guide 24
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Xilinx VCU128 Specifications

General

Brand	Xilinx
Model	VCU128
Category	Motherboard
Language	English