EPF81500AQC240-2 Altera, EPF81500AQC240-2 Datasheet - Page 9

• Manufacturer Part Number: EPF81500AQC240-2
• Description: IC FLEX 8000A FPGA 16K 240-PQFP
• Manufacturer: Altera
• Series: FLEX 8000r

Specifications of EPF81500AQC240-2

• Number Of Logic Elements/cells: 1296
• Number Of Labs/clbs: 162
• Number Of I /o: 181
• Number Of Gates: 16000
• Voltage - Supply: 4.75 V ~ 5.25 V
• Mounting Type: Surface Mount
• Operating Temperature: 0°C ~ 85°C
• Package / Case: 240-MQFP, 240-PQFP
• Family Name: FLEX 8000
• Number Of Usable Gates: 16000
• Number Of Logic Blocks/elements: 1296
• # Registers: 1500
• # I/os (max): 181
• Frequency (max): 125MHz
• Process Technology: CMOS
• Operating Supply Voltage (typ): 5V
• Logic Cells: 1296
• Ram Bits: 8
• Device System Gates: 16000
• 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: 240
• Package Type: PQFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Total Ram Bits: -
• Lead Free Status / Rohs Status: Not Compliant
• Other names: 544-2249

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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