EP1AGX20CF484C6N Altera, EP1AGX20CF484C6N Datasheet - Page 47
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EP1AGX20CF484C6N
Manufacturer Part Number
EP1AGX20CF484C6N
Description
IC ARRIA GX FPGA 20K 484FBGA
Manufacturer
Altera
Series
Arria GXr
Datasheet
1.EP1AGX20CF484C6N.pdf
(234 pages)
Specifications of EP1AGX20CF484C6N
Number Of Logic Elements/cells
21580
Number Of Labs/clbs
1079
Total Ram Bits
1229184
Number Of I /o
230
Voltage - Supply
1.15 V ~ 1.25 V
Mounting Type
Surface Mount
Operating Temperature
0°C ~ 85°C
Package / Case
484-FBGA
Family Name
Arria™ GX
Number Of Logic Blocks/elements
21580
# I/os (max)
230
Process Technology
CMOS
Operating Supply Voltage (typ)
1.2V
Logic Cells
21580
Ram Bits
1229184
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
484
Package Type
FC-FBGA
No. Of Macrocells
21580
Family Type
Arria GX
No. Of I/o's
230
Operating Frequency Max
622.08MHz
Operating Temperature Range
0°C To +85°C
Logic Case Style
BGA
No. Of Pins
484
Rohs Compliant
Yes
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Number Of Gates
-
Lead Free Status / Rohs Status
Compliant
Other names
544-2395
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
EP1AGX20CF484C6N
Manufacturer:
ALTERA
Quantity:
672
Chapter 2: Arria GX Architecture
Adaptive Logic Modules
Figure 2–37. Example of a 3-Bit Add Utilizing Shared Arithmetic Mode
Shared Arithmetic Chain
© December 2009 Altera Corporation
3-Bit Add Example
implemented in adders.
implemented in LUTs.
+
2nd stage add is
1st stage add is
1 1 0 1
1 1 0
+
Binary Add
1 1 0
1 0 1
0 1 0
0 0 1
Adder trees are used in many different applications. For example, the summation of
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
sum (S[2..0]) and the partial carry (C[2..0]) is obtained using LUTs, while the
result (R[2..0]) is computed using dedicated adders.
In addition to dedicated carry chain routing, the shared arithmetic chain available in
shared arithmetic mode allows the ALM to implement a three-input add, which
significantly reduces the resources necessary to implement large adder trees or
correlator functions. Shared arithmetic chains can begin in either the first or fifth ALM
in a LAB. The Quartus II Compiler automatically links LABs to create shared
arithmetic chains longer than 16 (eight ALMs in arithmetic or shared arithmetic
mode). For enhanced fitting, a long shared arithmetic chain runs vertically allowing
fast horizontal connections to TriMatrix memory and DSP blocks. A shared arithmetic
chain can continue as far as a full column. Similar to carry chains, shared arithmetic
+
R3 R2 R1 R0
C2 C1 C0
+
+
Equivalents
Decimal
X2 X1 X0
S2 S1 S0
2 x 6
Y2 Y1 Y0
Z2 Z1 Z0
+
13
6
5
2
1
X0
Y0
X1
Y1
X2
Y2
Z0
Z1
Z2
ALM Implementation
ALM 1
ALM 2
3-Input
3-Input
3-Input
3-Input
3-Input
3-Input
3-Input
3-Input
LUT
LUT
LUT
LUT
LUT
LUT
LUT
LUT
S0
C0
S1
C1
S2
C2
shared_arith_in = '0'
'0'
carry_in = '0'
Arria GX Device Handbook, Volume 1
Figure
2–37. The partial
R0
R1
R2
R3
2–41