LFXP10C-3F388I Lattice, LFXP10C-3F388I Datasheet - Page 23

• Manufacturer Part Number: LFXP10C-3F388I
• Description: FPGA LatticeXP Family 10000 Cells 320MHz 130nm (CMOS) Technology 1.8V/2.5V/3.3V 388-Pin FBGA Tray
• Manufacturer: Lattice

Specifications of LFXP10C-3F388I

• Package: 388FBGA
• Family Name: LatticeXP
• Device Logic Units: 10000
• Maximum Internal Frequency: 320 MHz
• Typical Operating Supply Voltage: 1.8|2.5|3.3 V
• Maximum Number Of User I/os: 244
• Ram Bits: 221184
• Re-programmability Support: Yes
• Lead Free Status / Rohs Status: Contains lead / RoHS non-compliant

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