EP1S20F672I7 Altera, EP1S20F672I7 Datasheet - Page 22
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EP1S20F672I7
Manufacturer Part Number
EP1S20F672I7
Description
IC STRATIX FPGA 20K LE 672-FBGA
Manufacturer
Altera
Series
Stratix®r
Datasheet
1.EP1S10F780C7.pdf
(276 pages)
Specifications of EP1S20F672I7
Number Of Logic Elements/cells
18460
Number Of Labs/clbs
1846
Total Ram Bits
1669248
Number Of I /o
426
Voltage - Supply
1.425 V ~ 1.575 V
Mounting Type
Surface Mount
Operating Temperature
-40°C ~ 100°C
Package / Case
672-FBGA
Family Name
Stratix
Number Of Logic Blocks/elements
18460
# I/os (max)
426
Frequency (max)
420.17MHz
Process Technology
0.13um (CMOS)
Operating Supply Voltage (typ)
1.5V
Logic Cells
18460
Ram Bits
1669248
Operating Supply Voltage (min)
1.425V
Operating Supply Voltage (max)
1.575V
Operating Temp Range
-40C to 100C
Operating Temperature Classification
Industrial
Mounting
Surface Mount
Pin Count
672
Package Type
FBGA
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Number Of Gates
-
Lead Free Status / Rohs Status
Not Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
EP1S20F672I7
Manufacturer:
ALTERA/阿尔特拉
Quantity:
20 000
Company:
Part Number:
EP1S20F672I7N
Manufacturer:
ALTERA20
Quantity:
212
Logic Elements
2–8
Stratix Device Handbook, Volume 1
functions. Another special packing mode allows the register output to
feed back into the LUT of the same LE so that the register is packed with
its own fan-out LUT. This provides another mechanism for improved
fitting. The LE can also drive out registered and unregistered versions of
the LUT output.
LUT Chain & Register Chain
In addition to the three general routing outputs, the LEs within an LAB
have LUT chain and register chain outputs. LUT chain connections allow
LUTs within the same LAB to cascade together for wide input functions.
Register chain outputs allow registers within the same LAB to cascade
together. The register chain output allows an LAB to use LUTs for a single
combinatorial function and the registers to be used for an unrelated shift
register implementation. These resources speed up connections between
LABs while saving local interconnect resources. See
Interconnect” on page 2–14
register chain connections.
addnsub Signal
The LE’s dynamic adder/subtractor feature saves logic resources by
using one set of LEs to implement both an adder and a subtractor. This
feature is controlled by the LAB-wide control signal addnsub. The
addnsub signal sets the LAB to perform either A + B or A – B. The LUT
computes addition, and subtraction is computed by adding the two’s
complement of the intended subtractor. The LAB-wide signal converts to
two’s complement by inverting the B bits within the LAB and setting
carry-in = 1 to add one to the least significant bit (LSB). The LSB of an
adder/subtractor must be placed in the first LE of the LAB, where the
LAB-wide addnsub signal automatically sets the carry-in to 1. The
Quartus II Compiler automatically places and uses the adder/subtractor
feature when using adder/subtractor parameterized functions.
LE Operating Modes
The Stratix LE can operate in one of the following modes:
■
■
Each mode uses LE resources differently. In each mode, eight available
inputs to the LE—the four data inputs from the LAB local interconnect;
carry-in0 and carry-in1 from the previous LE; the LAB carry-in
from the previous carry-chain LAB; and the register chain connection—
are directed to different destinations to implement the desired logic
function. LAB-wide signals provide clock, asynchronous clear,
Normal mode
Dynamic arithmetic mode
for more information on LUT chain and
“MultiTrack
Altera Corporation
July 2005