LFXP2-8E-5FTN256C Lattice, LFXP2-8E-5FTN256C Datasheet - Page 111

• Manufacturer Part Number: LFXP2-8E-5FTN256C
• Description: FPGA - Field Programmable Gate Array 8K LUTs 201I/O Inst- on DSP 1.2V -5 Spd
• Manufacturer: Lattice

Specifications of LFXP2-8E-5FTN256C

• Number Of Macrocells: 8000
• Number Of Programmable I/os: 201
• Data Ram Size: 226304
• Supply Voltage (max): 1.26 V
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: 0 C
• Mounting Style: SMD/SMT
• Supply Voltage (min): 1.14 V
• Package / Case: FTBGA-256
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Lattice Semiconductor
chronous DRAM and synchronous SRAM devices respectively). This capability is also used in conjunction with off-
chip resistors to emulate LVPECL, and BLVDS output drivers.
Table 8-7. Programmable Drive Values for Differential Buffers
PCI Support with Programmable PCICLAMP
Each sysIO buffer can be configured to support PCI33. The buffers on the top and bottom sides of the device have
an optional PCI clamp diode that may optionally be specified in the ispLEVER design tools.
Programmable PCICLAMP can be turned ON or OFF. This option is available on each I/O independently on the top
and bottom side banks.
Programmable Input Delay
Each input can optionally be delayed before it is passed to the core logic or input registers. The primary use for the
input delay is to achieve zero hold time for the input registers when using a direct drive primary clock. To arrive at
zero hold time, the input delay will delay the data by at least as much as the primary clock injection delay. This
option can be turned ON or OFF for each I/O independently in the software using the FIXEDDELAY attribute. This
attribute is described in more detail in the software sysIO attribute section. Appendix A shows how this feature can
be enabled in the software using HDL attributes.
Software sysIO Attributes
sysIO attributes can be specified in the HDL, using the Spreadsheet view of the Design Planner or in the ASCII
preference file (.lpf) file directly. Appendices A, B and C list examples of how these can be assigned using each of
these methods. This section describes each of these attributes in detail.
IO_TYPE
This is used to set the sysIO standard for an I/O. The V
the attribute names itself. There is no separate attribute to set the V
I/O types.
HSTL15D_I
HSTL18D_I
SSTL25D_I
SSTL25D_II
SSTL18D_II
Differential I/O Standard
8-7
CCIO
Programmable Drive (mA)
required to set these I/O standards are embedded in
CCIO
16, 20
8, 12
8, 12
8, 12
4, 8
requirements. Table 8-8 lists the available
LatticeXP2 sysIO Usage Guide