EPF8452AQC160-4 Altera, EPF8452AQC160-4 Datasheet - Page 9

• Manufacturer Part Number: EPF8452AQC160-4
• Description: IC FLEX 8000A FPGA 4K 160-PQFP
• Manufacturer: Altera
• Series: FLEX 8000r

Specifications of EPF8452AQC160-4

• Number Of Logic Elements/cells: 336
• Number Of Labs/clbs: 42
• Number Of I /o: 120
• Number Of Gates: 4000
• Voltage - Supply: 4.75 V ~ 5.25 V
• Mounting Type: Surface Mount
• Operating Temperature: 0°C ~ 85°C
• Package / Case: 160-MQFP, 160-PQFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Total Ram Bits: -
• Other names: 544-2259

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
9
3