EP1S25F780C7N Altera, EP1S25F780C7N Datasheet - Page 78

• Manufacturer Part Number: EP1S25F780C7N
• Description: IC STRATIX FPGA 25K LE 780-FBGA
• Manufacturer: Altera
• Series: Stratix®r

Specifications of EP1S25F780C7N

• Number Of Logic Elements/cells: 25660
• Number Of Labs/clbs: 2566
• Total Ram Bits: 1944576
• Number Of I /o: 597
• Voltage - Supply: 1.425 V ~ 1.575 V
• Mounting Type: Surface Mount
• Operating Temperature: 0°C ~ 85°C
• Package / Case: 780-FBGA
• Family Name: Stratix
• Number Of Logic Blocks/elements: 25660
• # I/os (max): 597
• Frequency (max): 420.17MHz
• Process Technology: 0.13um (CMOS)
• Operating Supply Voltage (typ): 1.5V
• Logic Cells: 25660
• Ram Bits: 1944576
• 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: 780
• Package Type: FC-FBGA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Number Of Gates: -
• Lead Free Status / Rohs Status: Compliant
• Other names: 544-1860; EP1S25F780C7N

Digital Signal Processing Block
2–64
Stratix Device Handbook, Volume 1
Output Selection Multiplexer
The outputs from the various elements of the adder/output block are
routed through an output selection multiplexer. Based on the DSP block
operational mode and user settings, the multiplexer selects whether the
output from the multiplier, the adder/subtractor/accumulator, or
summation block feeds to the output.
Output Registers
Optional output registers for the DSP block outputs are controlled by four
sets of control signals: clock[3..0], aclr[3..0], and ena[3..0].
Output registers can be used in any mode.
Modes of Operation
The adder, subtractor, and accumulate functions of a DSP block have four
modes of operation:
■
■
■
■
1
Simple Multiplier Mode
In simple multiplier mode, the DSP block drives the multiplier sub-block
result directly to the output with or without an output register. Up to four
18 × 18-bit multipliers or eight 9 × 9-bit multipliers can drive their results
directly out of one DSP block. See
Simple multiplier
Multiply-accumulator
Two-multipliers adder
Four-multipliers adder
Each DSP block can only support one mode. Mixed modes in the
same DSP block is not supported.
Figure
2–35.
Altera Corporation
July 2005