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KINTEX-7 FPGA Development Board AV7K325 User Manual
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Block RAM
(
kb
)
16,020
DSP48 Slices
840
PCIe Gen2
1
XADC
12bit, 1Mbps AD
GTP Transceiver
16
,
12.5Gb/s max
Speed Grade
-2
Temperature Grade
Industrial
Part 2.3:DDR3 DRAM
The AC7K325 FPGA core board is equipped with four 512MB DDR3 chips,
model MT41K256M16HA-125 (Compatible with MT41J256M16HA-125). Four
DDR3 SDRAMs form a 64-bit bus width. Because four DDR3 chips are
connected to the HP port of the FPGA, the DDR3 SDRAM can run at speeds
up to 800MHz (data rate 1600Mbps), and four DDR3 memory systems are
directly connected to the BANK32, BANK33, and BANK34 interfaces of the
FPGA. The specific configuration of DDR3 SDRAM is shown in Table 2-3-1.
Bit Number
Chip Model
Capacity
Factory
U3,U4,U6,U7
MT41K256M16HA-125
Or
MT41J256M16HA-125
256M x 16bit
Micron
Table 2-3-1: DDR3 SDRAM Configuration
The hardware design of DDR3 requires strict consideration of signal
integrity. We have fully considered the matching resistor/terminal resistance,
trace impedance control, and trace length control in circuit design and PCB
design to ensure high-speed and stable operation of DDR3. The hardware
connection between FPGA and DDR3 DRAM is shown in Figure 2-3-1