EP1C6T144C8 Altera, EP1C6T144C8 Datasheet - Page 15

IC CYCLONE FPGA 5980 LE 144-TQFP

EP1C6T144C8

Manufacturer Part Number
EP1C6T144C8
Description
IC CYCLONE FPGA 5980 LE 144-TQFP
Manufacturer
Altera
Series
Cyclone®r
Datasheet

Specifications of EP1C6T144C8

Number Of Logic Elements/cells
5980
Number Of Labs/clbs
598
Total Ram Bits
92160
Number Of I /o
98
Voltage - Supply
1.425 V ~ 1.575 V
Mounting Type
Surface Mount
Operating Temperature
0°C ~ 85°C
Package / Case
144-TQFP, 144-VQFP
Family Name
Cyclone®
Number Of Logic Blocks/elements
5980
# I/os (max)
98
Frequency (max)
275.03MHz
Process Technology
0.13um (CMOS)
Operating Supply Voltage (typ)
1.5V
Logic Cells
5980
Ram Bits
92160
Operating Supply Voltage (min)
1.425V
Operating Supply Voltage (max)
1.575V
Operating Temp Range
0C to 85C
Operating Temperature Classification
Commercial
Mounting
Surface Mount
Pin Count
144
Package Type
TQFP
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Number Of Gates
-
Lead Free Status / Rohs Status
Not Compliant
Other names
544-1058

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Altera Corporation
May 2008
Dynamic Arithmetic Mode
The dynamic arithmetic mode is ideal for implementing adders, counters,
accumulators, wide parity functions, and comparators. An LE in dynamic
arithmetic mode uses four 2-input LUTs configurable as a dynamic
adder/subtractor. The first two 2-input LUTs compute two summations
based on a possible carry-in of 1 or 0; the other two LUTs generate carry
outputs for the two chains of the carry select circuitry. As shown in
Figure
carry-in1 chain. The selected chain's logic level in turn determines
which parallel sum is generated as a combinatorial or registered output.
For example, when implementing an adder, the sum output is the
selection of two possible calculated sums:
or
The other two LUTs use the data1 and data2 signals to generate two
possible carry-out signals⎯ one for a carry of 1 and the other for a carry of
0. The carry-in0 signal acts as the carry select for the carry-out0
output and carry-in1 acts as the carry select for the carry-out1
output. LEs in arithmetic mode can drive out registered and unregistered
versions of the LUT output.
The dynamic arithmetic mode also offers clock enable, counter enable,
synchronous up/down control, synchronous clear, synchronous load,
and dynamic adder/subtractor options. The LAB local interconnect data
inputs generate the counter enable and synchronous up/down control
signals. The synchronous clear and synchronous load options are
LAB-wide signals that affect all registers in the LAB. The Quartus II
software automatically places any registers that are not used by the
counter into other LABs. The addnsub LAB-wide signal controls
whether the LE acts as an adder or subtractor.
data1 + data2 + carry-in0
data1 + data2 + carry-in1
2–7, the LAB carry-in signal selects either the carry-in0 or
Logic Elements
Preliminary
2–9

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