EP2C20F256C6N Altera, EP2C20F256C6N Datasheet - Page 37

• Manufacturer Part Number: EP2C20F256C6N
• Description: IC CYCLONE II FPGA 20K 256-FBGA
• Manufacturer: Altera
• Series: Cyclone® IIr

Specifications of EP2C20F256C6N

• Number Of Logic Elements/cells: 18752
• Number Of Labs/clbs: 1172
• Total Ram Bits: 239616
• Number Of I /o: 152
• Voltage - Supply: 1.15 V ~ 1.25 V
• Mounting Type: Surface Mount
• Operating Temperature: 0°C ~ 85°C
• Package / Case: 256-FBGA
• For Use With: P0528 - BOARD DEV DE1 ALTERA544-1736 - CYCLONE II STARTER KIT EP2C20N
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Number Of Gates: -
• Other names: 544-1660

Altera Corporation
February 2007
PLLs
Cyclone II PLLs provide general-purpose clocking as well as support for
the following features:
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■
■
■
■
■
■
■
■
■
Cyclone II devices contain either two or four PLLs.
PLLs available for each Cyclone II device.
EP2C5
EP2C8
EP2C15
EP2C20
EP2C35
EP2C50
EP2C70
Table 2–3. Cyclone II Device PLL Availability
Device
Clock multiplication and division
Phase shifting
Programmable duty cycle
Up to three internal clock outputs
One dedicated external clock output
Clock outputs for differential I/O support
Manual clock switchover
Gated lock signal
Three different clock feedback modes
Control signals
PLL1
v
v
v
v
v
v
v
PLL2
Cyclone II Device Handbook, Volume 1
v
v
v
v
v
v
v
PLL3
v
v
v
v
v
Cyclone II Architecture
Table 2–3
shows the
PLL4
v
v
v
v
v
2–25