EP1S25F672C8 Altera, EP1S25F672C8 Datasheet - Page 90

• Manufacturer Part Number: EP1S25F672C8
• Description: IC STRATIX FPGA 25K LE 672-FBGA
• Manufacturer: Altera
• Series: Stratix®r

Specifications of EP1S25F672C8

• Number Of Logic Elements/cells: 25660
• Number Of Labs/clbs: 2566
• Total Ram Bits: 1944576
• Number Of I /o: 473
• 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: Contains lead / RoHS non-compliant
• Number Of Gates: -
• Other names: 544-1119

PLLs & Clock Networks
2–76
Stratix Device Handbook, Volume 1
Figure 2–43. Regional Clocks
Fast Regional Clock Network
In EP1S25, EP1S20, and EP1S10 devices, there are two fast regional clock
networks, FCLK[1..0], within each quadrant, fed by input pins that can
connect to fast regional clock networks (see
larger devices, there are two fast regional clock networks within each
half-quadrant (see
clock networks. All devices have eight FCLK pins to drive fast regional
clock networks. Any I/O pin can drive a clock or control signal onto any
fast regional clock network with the addition of a delay. This signal is
driven via the I/O interconnect. The fast regional clock networks can also
be driven from internal logic elements.
RCLK[1..0]
RCLK[4..5]
CLK[3..0]
Figure
2–45). Dual-purpose FCLK pins drive the fast
RCLK[6..7]
RCLK[2..3]
CLK[7..4]
RCLK[12..13]
RCLK[11..10]
CLK[15..12]
Figure
Regional Clocks Only Drive a Device
Quadrant from Specified CLK Pins or
PLLs within that Quadrant
2–44). In EP1S30 and
Altera Corporation
CLK[11..8]
RCLK[14..15]
July 2005
RCLK[9..8]