EP2S90F1020I4N Altera, EP2S90F1020I4N Datasheet - Page 26

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EP2S90F1020I4N

Manufacturer Part Number
EP2S90F1020I4N
Description
IC STRATIX II FPGA 90K 1020-FBGA
Manufacturer
Altera
Series
Stratix® IIr
Datasheet

Specifications of EP2S90F1020I4N

Number Of Logic Elements/cells
90960
Number Of Labs/clbs
4548
Total Ram Bits
4520488
Number Of I /o
758
Voltage - Supply
1.15 V ~ 1.25 V
Mounting Type
Surface Mount
Operating Temperature
-40°C ~ 100°C
Package / Case
1020-FBGA
Family Name
Stratix II
Number Of Logic Blocks/elements
90960
# I/os (max)
758
Frequency (max)
711.24MHz
Process Technology
90nm (CMOS)
Operating Supply Voltage (typ)
1.2V
Logic Cells
90960
Ram Bits
4520488
Operating Supply Voltage (min)
1.15V
Operating Supply Voltage (max)
1.25V
Operating Temp Range
-40C to 100C
Operating Temperature Classification
Industrial
Mounting
Surface Mount
Pin Count
1020
Package Type
FC-FBGA
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Number Of Gates
-
Lead Free Status / Rohs Status
Compliant
Other names
544-1920
EP2S90F1020I4N

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Adaptive Logic Modules
Figure 2–13. ALM in Shared Arithmetic Mode
Note to
(1)
2–18
Stratix II Device Handbook, Volume 1
Inputs dataf0 and dataf1 are available for register packing in shared arithmetic mode.
Figure
datae0
datae1
datab
dataa
datad
datac
2–13:
Adder trees can be found in many different applications. For example, the
summation of the partial products in a logic-based multiplier can be
implemented in a tree structure. Another example is a correlator function
that can use a large adder tree to sum filtered data samples in a given time
frame to recover or to de-spread data which was transmitted utilizing
spread spectrum technology.
An example of a three-bit add operation utilizing the shared arithmetic
mode is shown in
partial carry (C[2..0]) is obtained using the LUTs, while the result
(R[2..0]) is computed using the dedicated adders.
4-Input
4-Input
4-Input
4-Input
LUT
LUT
LUT
LUT
shared_arith_out
shared_arith_in
Figure
carry_out
carry_in
2–14. The partial sum (S[2..0]) and the
D
D
reg0
reg1
Q
Q
To general or
To general or
To general or
To general or
local routing
local routing
local routing
local routing
Altera Corporation
May 2007

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