LFXP2-5E-5FTN256I Lattice, LFXP2-5E-5FTN256I Datasheet - Page 263
LFXP2-5E-5FTN256I
Manufacturer Part Number
LFXP2-5E-5FTN256I
Description
FPGA - Field Programmable Gate Array 5K LUTs 172 I/O Inst on DSP 1.2V -5 Spd
Manufacturer
Lattice
Datasheet
1.LFXP2-8E-5FTN256I.pdf
(341 pages)
Specifications of LFXP2-5E-5FTN256I
Number Of Macrocells
5000
Number Of Programmable I/os
172
Data Ram Size
169984
Supply Voltage (max)
1.26 V
Maximum Operating Temperature
+ 100 C
Minimum Operating Temperature
- 40 C
Mounting Style
SMD/SMT
Supply Voltage (min)
1.14 V
Package / Case
FTBGA-256
Number Of Logic Elements/cells
*
Number Of Labs/clbs
*
Total Ram Bits
169984
Number Of I /o
172
Number Of Gates
-
Voltage - Supply
1.14 V ~ 1.26 V
Mounting Type
*
Operating Temperature
-40°C ~ 100°C
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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Lattice Semiconductor
Lattice XP2 sysDSP Usage Guide
MAC Module
The MAC Module configures multiply accumulate elements to be packed into the primitive MULT18X18MACB. The
Basic mode, shown in Figure 13-4, consists of an optional one clock, one clock enable and one reset tied to all reg-
isters. Because of the accumulator, the output register is automatically enabled. Multiple sysDSP Blocks can be
spanned to accommodate large multiplications. The accumulator of the sysDSP block is 52 bits deep and addi-
tional LUTs can be used if a larger accumulation is required. If sysDSP blocks are spanned, additional LUT logic
may be required. Select Area/Speed to determine the LUT implementation. The input data format can be selected
as Parallel, Shift or Dynamic. The Shift format can only be enabled if inputs are less than 18 bits. The Shift format
enables a sample/shift register. The Accumsload loads the accumulator with the value from the LD port. This is
required to initialize and load the first value of the accumulation. The Advanced mode, shown in Figure 13-5, allows
finer control over the registers. In the advanced mode, users can control each register with independent clocks,
clock enables and resets. MAC inputs can be from 2 to 72 bits.
Figure 13-4. MAC Mode Basic Set-up
13-4
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