LFXP2-40E-5FN672C LATTICE SEMICONDUCTOR, LFXP2-40E-5FN672C Datasheet - Page 6
LFXP2-40E-5FN672C
Manufacturer Part Number
LFXP2-40E-5FN672C
Description
IC, LATTICEXP2 FPGA, 435MHZ, FPBGA-672
Manufacturer
LATTICE SEMICONDUCTOR
Series
LatticeXP2r
Datasheet
1.LFXP2-5E-5TN144C.pdf
(93 pages)
Specifications of LFXP2-40E-5FN672C
No. Of Logic Blocks
40000
No. Of Macrocells
20000
Family Type
LatticeXP2
No. Of Speed Grades
5
No. Of I/o's
540
Clock Management
PLL
Total Ram Bits
885Kbit
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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Figure 2-2. PFU Diagram
Slice
Slice 0 through Slice 2 contain two 4-input combinatorial Look-Up Tables (LUT4), which feed two registers. Slice 3
contains two LUT4s and no registers. For PFUs, Slice 0 and Slice 2 can also be configured as distributed memory,
a capability not available in PFF blocks. Table 2-1 shows the capability of the slices in both PFF and PFU blocks
along with the operation modes they enable. In addition, each PFU contains logic that allows the LUTs to be com-
bined to perform functions such as LUT5, LUT6, LUT7 and LUT8. There is control logic to perform set/reset func-
tions (programmable as synchronous/asynchronous), clock select, chip-select and wider RAM/ROM functions.
Figure 2-3 shows an overview of the internal logic of the slice. The registers in the slice can be configured as posi-
tive/negative edge triggered or level sensitive clocks.
Table 2-1. Resources and Modes Available per Slice
Slice 0 through Slice 2 have 14 input signals: 13 signals from routing and one from the carry-chain (from the adja-
cent slice or PFU). There are seven outputs: six to routing and one to carry-chain (to the adjacent PFU). Slice 3 has
13 input signals from routing and four signals to routing. Table 2-2 lists the signals associated with Slice 0 to Slice
2.
Slice 0
Slice 1
Slice 2
Slice 3
Slice
2 LUT4s and 2 Registers Logic, Ripple, RAM, ROM 2 LUT4s and 2 Registers
2 LUT4s and 2 Registers
2 LUT4s and 2 Registers Logic, Ripple, RAM, ROM 2 LUT4s and 2 Registers
FF
LUT4 &
CARRY
D
Slice 0
Resources
2 LUT4s
FF
LUT4 &
CARRY
D
PFU BLock
FF
LUT4 &
CARRY
D
Logic, Ripple, ROM
Slice 1
Logic, ROM
Modes
FF
LUT4 &
CARRY
D
Routing
Routing
From
2-3
To
FF
CARRY
LUT4 &
D
2 LUT4s and 2 Registers
Slice 2
Resources
2 LUT4s
FF
CARRY
LUT4 &
D
LatticeXP2 Family Data Sheet
PFF Block
LUT4
Slice 3
Logic, Ripple, ROM
Logic, Ripple, ROM
Logic, Ripple, ROM
Logic, ROM
LUT4
Modes
Architecture
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