ep1s25 Altera Corporation, ep1s25 Datasheet - Page 152

• Manufacturer Part Number: ep1s25
• Description: Stratix Device Family Data Sheet
• Manufacturer: Altera Corporation

High-Speed Differential I/O Support
Figure 2–74. Fast PLL & Channel Layout in the EP1S10, EP1S20 or EP1S25 Devices
Notes to
(1)
(2)
(3)
2–138
Stratix Device Handbook, Volume 1
Wire-bond packages support up to 624 Mbps.
See
There is a multiplexer here to select the PLL clock source. If a PLL uses this multiplexer to clock channels outside of
its bank quadrant, those clocked channels support up to 840 Mbps for “high” speed channels and 462 Mbps for
“low” speed channels, as labeled in the device pin-outs at www.altera.com.
Transmitter Channels (2)
Transmitter Channels (2)
Up to 20 Receiver and
Up to 20 Receiver and
Table 2–41
Figure
Transmitter
Transmitter
Receiver
Receiver
2–74:
CLKIN
CLKIN
for the number of channels each device supports.
The Quartus II MegaWizard
implementation of up to 20 receiver or 20 transmitter channels for each
fast PLL. These channels operate at up to 840 Mbps. The receiver and
transmitter channels are interleaved such that each I/O bank on the left
and right side of the device has one receiver channel and one transmitter
channel per LAB row.
in EP1S10, EP1S20, and EP1S25 devices.
and channel layout in the EP1S30 to EP1S80 devices.
PLL 1
PLL 2
Fast
Fast
(3)
Figure 2–74
(3)
®
Plug-In Manager only allows the
shows the fast PLL and channel layout
PLL 4
PLL 3
Fast
Fast
Figure 2–75
Note (1)
Up to 20 Receiver and
Transmitter Channels (2)
Up to 20 Receiver and
Transmitter Channels (2)
Transmitter
Receiver
CLKIN
CLKIN
Transmitter
Receiver
shows the fast PLL
Altera Corporation
July 2005