EP1S20F484C6N Altera, EP1S20F484C6N Datasheet - Page 541

• 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: -

Altera Corporation
July 2005
Figure 5–43. Page 4 of the Transmitter altlvds MegaWizard Plug-In Manager
Registered Inputs
Check the Register inputs box if the input data to the transmitter is not
registered just before it feeds the transmitter module. You can choose
either tx_clkin or tx_coreclk to clock the transmitter data
(tx_in[]) signal. This serves as the register boundary. The number of
registers used is proportional to the deserialization factor (J). The
Quartus II software places the synchronization registers with the LEs in
the same row and closest to the SERDES circuitry.
Use Common PLL for Transmitter & Receiver
Check the Use Common PLLs for Rx and Tx box to place both the LVDS
transmitter and receiver in the same I/O bank in Stratix devices. The
Quartus II software also allows the transmitter and receiver to share the
PLL when the same input clock is used for both. Although you must
High-Speed Differential I/O Interfaces in Stratix Devices
Stratix Device Handbook, Volume 2
5–69