LFE2M20SE-5FN256I Lattice, LFE2M20SE-5FN256I Datasheet - Page 39
LFE2M20SE-5FN256I
Manufacturer Part Number
LFE2M20SE-5FN256I
Description
FPGA LatticeECP2M Family 19000 Cells 90nm (CMOS) Technology 1.2V 256-Pin FBGA
Manufacturer
Lattice
Datasheet
1.LFE2-12SE-6FN256C.pdf
(389 pages)
Specifications of LFE2M20SE-5FN256I
Package
256FBGA
Family Name
LatticeECP2M
Device Logic Units
19000
Typical Operating Supply Voltage
1.2 V
Maximum Number Of User I/os
140
Ram Bits
1246208
In System Programmability
Yes
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
LFE2M20SE-5FN256I
Manufacturer:
Lattice Semiconductor Corporation
Quantity:
10 000
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Lattice Semiconductor
Top Edge
The PICs on the top edge are different from PIOs on the left, right and bottom edges. PIOs on this edge do not
have DDR registers or DQS signals.
The exact DQS pins are shown in a dual function in the Logic Signal Connections table in this data sheet. Addi-
tional detail is provided in the Signal Descriptions table. The DQS signal from the bus is used to strobe the DDR
data from the memory into input register blocks. Interfaces on the left and right edges are designed for DDR mem-
ories that support 16 bits of data, whereas interfaces on the bottom are designed for memories that support 18 bits
of data.
Figure 2-33. DQS Input Routing for the Left and Right Edges of the Device
DQS
PIO A
PIO B
PIO A
PIO B
PIO A
PIO B
PIO A
PIO B
PIO A
PIO B
PIO A
PIO B
PIO A
PIO B
PIO A
PIO B
2-36
sysIO
Buffer
Delay
LatticeECP2/M Family Data Sheet
PADA "T"
PADA "T"
PADA "T"
PADA "T"
PADA "T"
PADA "T"
PADB "C"
PADB "C"
PADA "T"
PADB "C"
PADB "C"
PADB "C"
PADB "C"
PADB "C"
DQS Pin
PADA "T"
PADB "C"
Assigned
LVDS Pair
LVDS Pair
LVDS Pair
LVDS Pair
LVDS Pair
LVDS Pair
LVDS Pair
LVDS Pair
Architecture
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