EP2S90F1020C5 Altera, EP2S90F1020C5 Datasheet - Page 23

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EP2S90F1020C5

Manufacturer Part Number
EP2S90F1020C5
Description
IC STRATIX II FPGA 90K 1020-FBGA
Manufacturer
Altera
Series
Stratix® IIr
Datasheet

Specifications of EP2S90F1020C5

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
0°C ~ 85°C
Package / Case
1020-FBGA
Family Name
Stratix II
Number Of Logic Blocks/elements
90960
# I/os (max)
758
Frequency (max)
609.76MHz
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
0C to 85C
Operating Temperature Classification
Commercial
Mounting
Surface Mount
Pin Count
1020
Package Type
FC-FBGA
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Number Of Gates
-
Lead Free Status / Rohs Status
Not Compliant
Other names
544-1465
EP2S90F1020C5

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Altera Corporation
May 2007
Figure 2–11. ALM in Arithmetic Mode
While operating in arithmetic mode, the ALM can support simultaneous
use of the adder's carry output along with combinational logic outputs. In
this operation, the adder output is ignored. This usage of the adder with
the combinational logic output provides resource savings of up to 50% for
functions that can use this ability. An example of such functionality is a
conditional operation, such as the one shown in
equation for this example is:
To implement this function, the adder is used to subtract ‘Y’ from ‘X.’ If
‘X’ is less than ‘Y,’ the carry_out signal is ‘1.’ The carry_out signal is
fed to an adder where it drives out to the LAB local interconnect. It then
feeds to the LAB-wide syncload signal. When asserted, syncload
selects the syncdata input. In this case, the data ‘Y’ drives the
syncdata inputs to the registers. If ‘X’ is greater than or equal to ‘Y,’ the
syncload signal is de-asserted and ‘X’ drives the data port of the
registers.
datae0
datae1
dataf0
dataf1
datab
dataa
datad
datac
R = (X < Y) ? Y : X
4-Input
4-Input
4-Input
4-Input
LUT
LUT
LUT
LUT
carry_out
carry_in
Stratix II Device Handbook, Volume 1
adder0
adder1
D
D
reg0
reg1
Figure
Q
Q
Stratix II Architecture
2–12. The
To general or
To general or
To general or
To general or
local routing
local routing
local routing
local routing
2–15

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