EP1S20F484C6N Altera, EP1S20F484C6N Datasheet - Page 422

• Manufacturer Part Number: EP1S20F484C6N
• Description: IC STRATIX FPGA 20K LE 484-FBGA
• Manufacturer: Altera
• Series: Stratix®r

Specifications of EP1S20F484C6N

• Number Of Logic Elements/cells: 18460
• Number Of Labs/clbs: 1846
• Total Ram Bits: 1669248
• Number Of I /o: 361
• Voltage - Supply: 1.425 V ~ 1.575 V
• Mounting Type: Surface Mount
• Operating Temperature: 0°C ~ 85°C
• Package / Case: 484-FBGA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Number Of Gates: -

DDR Memory Support Overview
3–26
Stratix Device Handbook, Volume 2
Figure 3–14. DQ Captures with Non-Inverted & Inverted Shifted DQS
DQ & DQS Signals
Shifted DQS Signal is Not Inverted
Shifted DQS Signal is Inverted
Output of register A
Output of register B
Output of register A
Output of register B
Output of latch C
Output of latch C
DQS inverted and
DQS at the pin
shifted by 90˚
DQ at the pin
DQS shifted
(dataout_h)
(dataout_h)
(dataout_l)
(dataout_l)
by 90˚
1
1
1
1
1
1
D
n − 1
D
D
D
n − 2
n − 3
n − 2
D
D
n − 2
D
n − 1
n − 1
D
n
Altera Corporation
D
D
D
n − 1
n
n
June 2006