LFE2-12E-5F256C LATTICE SEMICONDUCTOR, LFE2-12E-5F256C Datasheet - Page 39
LFE2-12E-5F256C
Manufacturer Part Number
LFE2-12E-5F256C
Description
FPGA LatticeECP2 Family 12000 Cells 90nm (CMOS) Technology 1.2V 256-Pin FBGA
Manufacturer
LATTICE SEMICONDUCTOR
Datasheet
1.LFE2-12SE-6FN256C.pdf
(389 pages)
Specifications of LFE2-12E-5F256C
Package
256FBGA
Family Name
LatticeECP2
Device Logic Units
12000
Typical Operating Supply Voltage
1.2 V
Maximum Number Of User I/os
193
Ram Bits
226304
In System Programmability
Yes
Available stocks
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Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
LFE2-12E-5F256C
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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