EP3SL150F1152C2N Altera, EP3SL150F1152C2N Datasheet - Page 267

• Manufacturer Part Number: EP3SL150F1152C2N
• Description: IC STRATX III FPGA 150K 1152FBGA
• Manufacturer: Altera
• Series: Stratix® IIIr

Specifications of EP3SL150F1152C2N

• Number Of Logic Elements/cells: 142500
• Number Of Labs/clbs: 5700
• Total Ram Bits: 6390
• Number Of I /o: 744
• Voltage - Supply: 0.86 V ~ 1.15 V
• Mounting Type: Surface Mount
• Operating Temperature: 0°C ~ 85°C
• Package / Case: 1152-FBGA
• For Use With: 544-2568 - KIT DEVELOPMENT STRATIX III
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Number Of Gates: -
• Other names: 544-2409; EP3SL150F1152C2NES

Chapter 8: External Memory Interfaces in Stratix III Devices
Stratix III External Memory Interface Features
DQS Phase-Shift Circuitry
© March 2010 Altera Corporation
1
1
When using the Altera memory controller MegaCore
instantiated for you.
The ALTMEMPHY megafunction and the Altera memory controller MegaCore
functions can run at half the frequency of the I/O interface of the memory devices to
allow better timing management in high-speed memory interfaces. Stratix III devices
have built-in registers to convert data from full-rate (I/O frequency) to half-rate
(controller frequency) and vice versa. You can bypass these registers if your memory
controller is not running at half the rate of the I/O frequency.
Stratix III phase-shift circuitry provides phase shift to the DQS and CQn pins on read
transactions, when the DQS/CQ and CQn pins are acting as input clocks or strobes to
the FPGA. DQS phase-shift circuitry consists of DLLs that are shared between
multiple DQS pins and the phase-offset module to further fine-tune the DQS phase
shift for different sides of the device.
circuitry is connected to the DQS/CQ and CQn pins in the device.
Figure 8–10
shows how the DQS phase-shift
®
functions, the PHY is
Stratix III Device Handbook, Volume 1
8–19