EP3SL150F780I3N Altera, EP3SL150F780I3N Datasheet - Page 492

• Manufacturer Part Number: EP3SL150F780I3N
• Description: Stratix III
• Manufacturer: Altera

Stratix III Power Technology
Stratix III Power
Technology
16–2
Stratix III Device Handbook, Volume 1
f
The following section provides details about Stratix III selectable core
voltage and programmable power technology.
Selectable Core Voltage
Altera offers a series of low-voltage Stratix products that have the ability
to power the core logic of the device with either a 0.9-V or 1.1-V power
supply. This power supply, called V
blocks, TriMatrix
The periphery, consisting of the I/O registers and their routing
connections are powered by V
the same 1.1-V power supply if you want both V
Lowering the core voltage reduces both static and dynamic power, but
causes a reduction in performance. You need to set the correct core
supply voltage in the Quartus II software settings under Operating
Conditions, since the Quartus II software analyzes the core power
consumption and timing delays based on this selection. When you
compile a design, you can select either 0.9 V or 1.1 V core voltage. You
can compare the power and performance trade-offs of a 0.9-V core
voltage compilation result and a 1.1-V core voltage compilation result
and then choose the most desirable core voltage for your design. By
default, the Quartus II software sets the core voltage to 1.1 V.
Ensure that the board has a separate 0.9-V power supply to utilize the
lower voltage option, and ensure that you connect V
level that you set in the Quartus II software. The Stratix III device cannot
distinguish which core voltage level is used on the board. Connecting to
the wrong voltage level will give you different timing delays and power
consumption than what is reported by the Quartus II software.
Refer to
about the selectable core voltage performance and power effects on
sample designs.
AN 437: Power Optimization Techniques
TM
memory blocks, clock networks, and routing lines.
CC
with a 1.1-V power supply. You can use
CCL
, powers the LAB, MLAB, DSP
for information
CC
and V
CCL
Altera Corporation
to the voltage
CCL
October 2007
to be 1.1 V.