ep2c35 Altera Corporation, ep2c35 Datasheet - Page 29

• Manufacturer Part Number: ep2c35
• Description: Cyclone Ii Device Family Data Sheet
• Manufacturer: Altera Corporation

Altera Corporation
February 2007
Each global clock network has a clock control block to select from a
number of input clock sources (PLL clock outputs, CLK[] pins, DPCLK[]
pins, and internal logic) to drive onto the global clock network.
lists how many PLLs, CLK[] pins, DPCLK[] pins, and global clock
networks are available in each Cyclone II device. CLK[] pins are
dedicated clock pins and DPCLK[] pins are dual-purpose clock pins.
Figures 2–11
inputs, DPCLK[] pins, and clock control blocks.
EP2C5
EP2C8
EP2C15
EP2C20
EP2C35
EP2C50
EP2C70
Table 2–2. Cyclone II Device Clock Resources
Device
and
Number of
2–12
PLLs
2
2
4
4
4
4
4
show the location of the Cyclone II PLLs, CLK[]
Number of
CLK Pins
Cyclone II Device Handbook, Volume 1
16
16
16
16
16
8
8
DPCLK Pins
Number of
20
20
20
20
20
Cyclone II Architecture
8
8
Global Clock
Number of
Networks
Table 2–2
16
16
16
16
16
8
8
2–17