EPF8282ALC84-4N Altera, EPF8282ALC84-4N Datasheet - Page 9

• Manufacturer Part Number: EPF8282ALC84-4N
• Description: IC, PLD, 208 MACROCELL, 60MHZ, PLCC-84
• Manufacturer: Altera
• Series: FLEX 8Kr

Specifications of EPF8282ALC84-4N

• No. Of Macrocells: 208
• No. Of I/o's: 64
• Global Clock Setup Time: 1.2ns
• Frequency: 60MHz
• Supply Voltage Range: 3V To 3.6V
• Operating Temperature Range: 0°C To +70°C
• Family Name: FLEX 8000
• Number Of Usable Gates: 2500
• Number Of Logic Blocks/elements: 208
• # Registers: 282
• # I/os (max): 78
• Frequency (max): 125MHz
• Process Technology: CMOS
• Operating Supply Voltage (typ): 5V
• Logic Cells: 208
• Device System Gates: 2500
• Operating Supply Voltage (min): 4.75V
• Operating Supply Voltage (max): 5.25V
• Operating Temp Range: 0C to 70C
• Operating Temperature Classification: Commercial
• Mounting: Surface Mount
• Pin Count: 84
• Package Type: PLCC
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Altera Corporation
Figure 4. FLEX 8000 Carry Chain Operation
Cascade Chain
With the cascade chain, the FLEX 8000 architecture can implement
functions that have a very wide fan-in. Adjacent LUTs can be used to
compute portions of the function in parallel; the cascade chain serially
connects the intermediate values. The cascade chain can use a logical AND
or logical OR (via De Morgan’s inversion) to connect the outputs of
adjacent LEs. Each additional LE provides four more inputs to the
effective width of a function, with a delay as low as 0.6 ns per LE.
a1
b1
a2
b2
a n
b n
Carry-In
FLEX 8000 Programmable Logic Device Family Data Sheet
Carry Chain
Carry Chain
Carry Chain
Carry
LUT
LUT
LUT
LU
Register
Register
Register
Register
LE n + 1
LE1
LE n
LE2
s1
s2
Carry-Out
s n
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