LFXP3E-4QN208I Lattice, LFXP3E-4QN208I Datasheet - Page 14
LFXP3E-4QN208I
Manufacturer Part Number
LFXP3E-4QN208I
Description
IC FPGA 3.1KLUTS 208PQFP
Manufacturer
Lattice
Datasheet
1.LFXP6C-3TN144C.pdf
(130 pages)
Specifications of LFXP3E-4QN208I
Number Of Logic Elements/cells
*
Number Of Labs/clbs
*
Total Ram Bits
*
Number Of I /o
*
Number Of Gates
*
Voltage - Supply
*
Mounting Type
*
Operating Temperature
*
Package / Case
*
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
LFXP3E-4QN208I
Manufacturer:
Lattice Semiconductor Corporation
Quantity:
10 000
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Architecture
Lattice Semiconductor
LatticeXP Family Data Sheet
For more information on the PLL, please see details of additional technical documentation at the end of this data
sheet.
Dynamic Clock Select (DCS)
The DCS is a global clock buffer with smart multiplexer functions. It takes two independent input clock sources and
outputs a clock signal without any glitches or runt pulses. This is achieved irrespective of where the select signal is
toggled. There are eight DCS blocks per device, located in pairs at the center of each side. Figure 2-12 illustrates
the DCS Block Macro.
Figure 2-12. DCS Block Primitive
CLK0
DCS
CLK1
DCSOUT
SEL
Figure 2-13 shows timing waveforms of the default DCS operating mode. The DCS block can be programmed to
other modes. For more information on the DCS, please see details of additional technical documentation at the end
of this data sheet.
Figure 2-13. DCS Waveforms
CLK0
CLK1
SEL
DCSOUT
sysMEM Memory
The LatticeXP family of devices contain a number of sysMEM Embedded Block RAM (EBR). The EBR consists of a
9-Kbit RAM, with dedicated input and output registers.
sysMEM Memory Block
The sysMEM block can implement single port, dual port or pseudo dual port memories. Each block can be used in
a variety of depths and widths as shown in Table 2-6.
2-11
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