EP2C20F256C7N Altera, EP2C20F256C7N Datasheet - Page 60

• Manufacturer Part Number: EP2C20F256C7N
• Description: IC CYCLONE II FPGA 20K 256-FBGA
• Manufacturer: Altera
• Series: Cyclone® IIr

Specifications of EP2C20F256C7N

• 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: 544-1659

I/O Structure & Features
Figure 2–27. DDR SDRAM Interfacing
2–48
Cyclone II Device Handbook, Volume 1
PLL
OE
-90˚ Shifted clk
Register
LE
Register
f
clk
LE
GND
V CC
Register
Register
LE
LE
For more information on Cyclone II external memory interfaces, see the
External Memory Interfaces chapter in Volume 1 of the Cyclone II Device
Handbook.
Control Circuitry
Clock Delay
DQS
t
Clock Control
Block
OE
ENOUT
Register
LE
en/dis
Register
LE
DataA
DataB
Dynamic Enable/Disable
ena_register_mode
Circuitry
Register
Register
Global Clock
LE
LE
DQ
Register
Register
LE
LE
Altera Corporation
Register
LE
February 2007
Resynchronizing
to System Clock
Adjacent LAB LEs
Register
Register
LE
LE