EP1C12Q240C6 Altera, EP1C12Q240C6 Datasheet - Page 11
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EP1C12Q240C6
Manufacturer Part Number
EP1C12Q240C6
Description
IC CYCLONE FPGA 12K LE 240-PQFP
Manufacturer
Altera
Series
Cyclone®r
Datasheet
1.EP1C3T144C8.pdf
(106 pages)
Specifications of EP1C12Q240C6
Number Of Logic Elements/cells
12060
Number Of Labs/clbs
1206
Total Ram Bits
239616
Number Of I /o
173
Voltage - Supply
1.425 V ~ 1.575 V
Mounting Type
Surface Mount
Operating Temperature
0°C ~ 85°C
Package / Case
240-MQFP, 240-PQFP
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Number Of Gates
-
Other names
544-1079
Available stocks
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Figure 2–4. LAB-Wide Control Signals
Logic Elements
Altera Corporation
May 2008
Dedicated
LAB Row
Clocks
Local
Interconnect
Local
Interconnect
Local
Interconnect
Local
Interconnect
Local
Interconnect
Local
Interconnect
6
With the LAB-wide addnsub control signal, a single LE can implement a
one-bit adder and subtractor. This saves LE resources and improves
performance for logic functions such as DSP correlators and signed
multipliers that alternate between addition and subtraction depending
on data.
The LAB row clocks [5..0] and LAB local interconnect generate the
LAB-wide control signals. The MultiTrack
skew allows clock and control signal distribution in addition to data.
Figure 2–4
The smallest unit of logic in the Cyclone architecture, the LE, is compact
and provides advanced features with efficient logic utilization. Each LE
contains a four-input LUT, which is a function generator that can
implement any function of four variables. In addition, each LE contains a
programmable register and carry chain with carry select capability. A
single LE also supports dynamic single bit addition or subtraction mode
selectable by a LAB-wide control signal. Each LE drives all types of
interconnects: local, row, column, LUT chain, register chain, and direct
link interconnects. See
labclk1
labclkena1
shows the LAB control signal generation circuit.
labclk2
Figure
labclkena2
2–5.
asyncload
or labpre
syncload
TM
interconnect's inherent low
labclr1
labclr2
Logic Elements
synclr
Preliminary
addnsub
2–5