EP2C5Q208C7 Altera, EP2C5Q208C7 Datasheet - Page 46

IC CYCLONE II FPGA 5K 208-PQFP

EP2C5Q208C7

Manufacturer Part Number
EP2C5Q208C7
Description
IC CYCLONE II FPGA 5K 208-PQFP
Manufacturer
Altera
Series
Cyclone® IIr
Datasheet

Specifications of EP2C5Q208C7

Number Of Logic Elements/cells
4608
Number Of Labs/clbs
288
Total Ram Bits
119808
Number Of I /o
142
Voltage - Supply
1.15 V ~ 1.25 V
Mounting Type
Surface Mount
Operating Temperature
0°C ~ 85°C
Package / Case
208-MQFP, 208-PQFP
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Number Of Gates
-
Other names
544-1447

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Embedded Multipliers
Figure 2–18. Multiplier Block Architecture
Note to
(1)
2–34
Cyclone II Device Handbook, Volume 1
If necessary, these signals can be registered once to match the data signal path.
Figure
2–18:
Data A
Data B
Each multiplier operand can be a unique signed or unsigned number.
Two signals, signa and signb, control the representation of each
operand respectively. A logic 1 value on the signa signal indicates that
data A is a signed number while a logic 0 value indicates an unsigned
number.
various operand sign representations. The result of the multiplication is
signed if any one of the operands is a signed value.
Unsigned
Unsigned
Signed
Signed
Table 2–11. Multiplier Sign Representation
Data A (signa Value)
ENA
ENA
D
D
CLRN
CLRN
signa (1)
signb (1)
clock
Q
Q
Table 2–11
ena
aclr
Register
Input
shows the sign of the multiplication result for the
Embedded Multiplier Block
Unsigned
Signed
Unsigned
Signed
Data B (signb Value)
ENA
D
CLRN
Register
Output
Q
Unsigned
Signed
Signed
Signed
Data Out
Altera Corporation
Result
February 2007

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