EP3C16F484A7N Altera, EP3C16F484A7N Datasheet - Page 106

• Manufacturer Part Number: EP3C16F484A7N
• Description: Cyclone III
• Manufacturer: Altera

Specifications of EP3C16F484A7N

• Family Name: Cyclone III
• Number Of Logic Blocks/elements: 15408
• # I/os (max): 346
• Frequency (max): 437.5MHz
• Process Technology: 65nm
• Operating Supply Voltage (typ): 1.2V
• Logic Cells: 15408
• Ram Bits: 516096
• Operating Supply Voltage (min): 1.15V
• Operating Supply Voltage (max): 1.25V
• Operating Temp Range: -40C to 125C
• Operating Temperature Classification: Automotive
• Mounting: Surface Mount
• Pin Count: 484
• Package Type: FBGA
• Lead Free Status / Rohs Status: Compliant

6–6
PCI-Clamp Diode
Cyclone III Device Handbook, Volume 1
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The IOE registers in each I/O block share the same source for the preset or clear
features. You can program preset or clear for each individual IOE, but you cannot use
both features simultaneously. You can also program the registers to power-up high or
low after configuration is complete. If programmed to power-up low, an
asynchronous clear can control the registers. If programmed to power-up high, an
asynchronous preset can control the registers. This feature prevents the inadvertent
activation of the active-low input of another device upon power up. If one register in
an IOE uses a preset or clear signal, all registers in the IOE must use that same signal if
they require preset or clear. Additionally, a synchronous reset signal is available for
the IOE registers.
For more information about the input and output pin delay settings, refer to the
and Timing Optimization
The Cyclone III device family provides an optional PCI-clamp diode enabled input
and output for each I/O pin. Dual-purpose configuration pins support the diode in
user mode if the specific pins are not used as configuration pins for the selected
configuration scheme. For example, if you are using the active serial (AS)
configuration scheme, you cannot use the clamp diode on the ASDO and nCSO pins in
user mode. Dedicated configuration pins do not support the on-chip diode.
The PCI-clamp diode is available for the following I/O standards:
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If the input I/O standard is 3.3-V LVTTL, 3.3-V LVCMOS, 3.0-V LVTTL, 3.0-V
LVCMOS, 2.5-V LVTTL/LVCMOS, PCI, or PCI-X, the PCI clamp diode is enabled by
default in the Quartus II software.
For more information, refer to the
Quartus II Handbook.
For more information about the Cyclone III device family PCI-clamp diode support,
refer to
Systems.
3.3-V LVTTL
3.3-V LVCMOS
3.0-V LVTTL
3.0-V LVCMOS
2.5-V LVTTL/LVCMOS
PCI
PCI-X
AN 447: Interfacing Cyclone III Devices with 3.3/3.0/2.5-V LVTTL/LVCMOS I/O
chapter in volume 2 of the Quartus II Handbook.
Assignment Editor
Chapter 6: I/O Features in the Cyclone III Device Family
chapter in volume 2 of the
© December 2009 Altera Corporation
I/O Element Features
Area