LFXP20C-5F484C Lattice, LFXP20C-5F484C Datasheet - Page 371
![no-image](/images/manufacturer_photos/0/3/380/lattice_sml.jpg)
LFXP20C-5F484C
Manufacturer Part Number
LFXP20C-5F484C
Description
IC FPGA 19.7KLUTS 340I/O 484-BGA
Manufacturer
Lattice
Datasheet
1.LFXP3C-3T100C.pdf
(397 pages)
Specifications of LFXP20C-5F484C
Lead Free Status / Rohs Status
Contains lead / RoHS non-compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
LFXP20C-5F484C
Manufacturer:
Lattice Semiconductor Corporation
Quantity:
10 000
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Lattice Semiconductor
IN_DEL
ROUTE
NCLK_DEL
ROUTE
NCLK_DEL
ROUTE
Report: There is no minimum offset greater than zero for this preference.
From the Set-up Report below, which was run for MAX conditions:
===========================================================================
Preference: CLOCK_TO_OUT PORT “ddr_cas_n” MAX 5.500000 ns CLKPORT “clk” CLKOUT PORT “ddr_clk”
;
---------------------------------------------------------------------------------------------
------------------------------------
Passed:
ddr_clk_c -)
Logical Details:
Constraint Details:
Physical Path Details:
Name
Name
Source:
Destination:
Data Path Delay:
Clock Path Delay:
•
Clock path clk to ddr_dq_31:
Feedback path:
t
6.346ns delay clk to ddr_cas_n less
3.271ns feedback compensation
1.713ns delay ddr_cas_n to ddr_cas_n less
2.470ns delay clk to ddr_clk (totaling 2.318ns) meets
5.500ns offset clk to ddr_cas_n by 3.182ns
Clock path clk to ddr_cas_n:
DDR_CLK
The following path meets requirements by 3.182ns
Fanout
Fanout
---
---
136
---
136
1 item scored, 0 timing errors detected.
(max) = 5.741 - 3.271 = 2.47 ns
1
--------
--------
Unknown
Cell type
Port
Delay (ns)
0.576
0.507
0.231
1.830
3.144
Delay (ns)
0.231
1.674
1.905
1.713ns
6.346ns
LLHPPLL.CLKIN to
LLHPPLL.CLKIN to
LLHPPLL.NCLK to
(25.7% logic, 74.3% route), 2 logic levels.
LLHPPLL.NCLK to
(12.1% logic, 87.9% route), 1 logic levels.
Q
Pin type
Pad
AB4.INCK to
AB4.PAD to
(100.0% logic, 0.0% route), 1 logic levels.
(28.6% logic, 71.4% route), 2 logic levels.
Site
Site
18-11
U1_ddrct_np_o4_1_008/U1_cmdexe/ddr_cas_nZ0
LLHPPLL.CLKIN clk_c
Cell name
ddr_cas_n
LLHPPLL.NCLK U2_ddr_pll_orca/ddr_pll_0_0
LLHPPLL.NCLK U2_ddr_pll_orca/ddr_pll_0_0
LLHPPLL.FB pll_nclk
AB4.INCK clk
C25.SC pll_nclk
for the DDR SDRAM Controller IP Core
(clock net +/-)
Resource
Resource
Board Timing Guidelines
(from
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