EP1S20F672C7N Altera, EP1S20F672C7N Datasheet - Page 76

• Manufacturer Part Number: EP1S20F672C7N
• Description: IC STRATIX FPGA 20K LE 672-FBGA
• Manufacturer: Altera
• Series: Stratix®r

Specifications of EP1S20F672C7N

• Number Of Logic Elements/cells: 18460
• Number Of Labs/clbs: 1846
• Total Ram Bits: 1669248
• Number Of I /o: 426
• Voltage - Supply: 1.425 V ~ 1.575 V
• Mounting Type: Surface Mount
• Operating Temperature: 0°C ~ 85°C
• Package / Case: 672-FBGA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Number Of Gates: -
• Other names: 544-1854; EP1S20F672C7N

Digital Signal Processing Block
Figure 2–34. Adder/Output Blocks
Notes to
(1)
(2)
2–62
Stratix Device Handbook, Volume 1
accum_sload0 (2)
accum_sload1 (2)
Adder/output block shown in
blocks and two summation blocks.
These signals are either not registered, registered once, or registered twice to match the data path pipeline.
addnsub1 (2)
addnsub3 (2)
Figure
signa (2)
signb (2)
Result C
Result D
Result A
Result B
2–34:
Figure 2–34
Accumulator1
Accumulator2
Subtractor/
Subtractor/
Note (1)
Adder/
Adder/
is in 18
×
Summation
18-bit mode. In 9 × 9-bit mode, there are four adder/subtractor
Accumulator Feedback
Accumulator Feedback
Altera Corporation
overflow0
overflow1
Output Selection
Multiplexer
Output
Register Block
July 2005