LFE2-35E-5FN672C LATTICE SEMICONDUCTOR, LFE2-35E-5FN672C Datasheet - Page 14
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LFE2-35E-5FN672C
Manufacturer Part Number
LFE2-35E-5FN672C
Description
FPGA LatticeECP2 Family 32000 Cells 90nm (CMOS) Technology 1.2V 672-Pin FBGA
Manufacturer
LATTICE SEMICONDUCTOR
Datasheet
1.LFE2-12SE-6FN256C.pdf
(389 pages)
Specifications of LFE2-35E-5FN672C
Package
672FBGA
Family Name
LatticeECP2
Device Logic Units
32000
Typical Operating Supply Voltage
1.2 V
Maximum Number Of User I/os
450
Ram Bits
339968
In System Programmability
Yes
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
LFE2-35E-5FN672C
Manufacturer:
NS
Quantity:
31
Company:
Part Number:
LFE2-35E-5FN672C
Manufacturer:
Lattice Semiconductor Corporation
Quantity:
10 000
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Lattice Semiconductor
Figure 2-9. Clock Divider Connections
Clock Distribution Network
LatticeECP2/M devices have eight quadrant-based primary clocks and eight flexible region-based secondary
clocks/control signals. Two high performance edge clocks are available on each edge of the device to support high
speed interfaces. These clock inputs are selected from external I/Os, the sysCLOCK PLLs, DLLs or routing. These
clock inputs are fed throughout the chip via a clock distribution system.
Primary Clock Sources
LatticeECP2/M devices derive clocks from five primary sources: PLL (GPLL and SPLL) outputs, DLL outputs, CLK-
DIV outputs, dedicated clock inputs and routing. LatticeECP2/M devices have two to eight sysCLOCK PLLs and
two DLLs, located on the left and right sides of the device. There are eight dedicated clock inputs, two on each side
of the device, with the exception of the LatticeECP2M 256-fpBGA package devices which have six dedicated clock
inputs on the device. Figure 2-10 shows the primary clock sources.
CLKOP (GPLL)
CLKOS (GPLL)
CLKOP (DLL)
CLKOS (DLL)
PLL PAD
Routing
CLKO
RELEASE
RST
2-11
CLKDIV
LatticeECP2/M Family Data Sheet
÷1
÷2
÷4
÷8
Architecture
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