LFEC1E-4TN100C Lattice, LFEC1E-4TN100C Datasheet - Page 12
LFEC1E-4TN100C
Manufacturer Part Number
LFEC1E-4TN100C
Description
IC FPGA 1.5KLUTS 67I/O 100-TQFP
Manufacturer
Lattice
Datasheet
1.LFEC3E-5TN144C.pdf
(163 pages)
Specifications of LFEC1E-4TN100C
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Available stocks
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Part Number:
LFEC1E-4TN100C
Manufacturer:
Lattice Semiconductor Corporation
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Lattice Semiconductor
Figure 2-8. Per Quadrant Primary Clock Selection
Figure 2-9. Per Quadrant Secondary Clock Selection
Figure 2-10. Slice Clock Selection
sysCLOCK Phase Locked Loops (PLLs)
The PLL clock input, from pin or routing, feeds into an input clock divider. There are three sources of feedback sig-
nal to the feedback divider: from CLKOP (PLL Internal), from clock net (CLKOP) or from a user clock (PIN or logic).
There is a PLL_LOCK signal to indicate that VCO has locked on to the input clock signal. Figure 2-11 shows the
sysCLOCK PLL diagram.
The setup and hold times of the device can be improved by programming a delay in the feedback or input path of
the PLL which will advance or delay the output clock with reference to the input clock. This delay can be either pro-
1. Smaller devices have fewer PLL related lines.
20 Secondary Clock Feedlines : 4 Clock Input Pads + 16 Routing Signals
4 Primary Clocks (CLK0, CLK1, CLK2, CLK3) per Quadrant
Secondary Clock
20 Primary Clock Sources: 12 PLLs + 4 PIOs + 4 Routing
Primary Clock
4 Secondary Clocks per Quadrant
Routing
GND
DCS
2-9
LatticeECP/EC Family Data Sheet
Clock to
each slice
DCS
1
Architecture
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