EP4CE55F23C7N Altera, EP4CE55F23C7N Datasheet - Page 8

• Manufacturer Part Number: EP4CE55F23C7N
• Description: IC CYCLONE IV E FPGA 56K 484FBGA
• Manufacturer: Altera
• Series: CYCLONE® IV Er

Specifications of EP4CE55F23C7N

• Number Of Logic Elements/cells: 55856
• Number Of Labs/clbs: 3491
• Total Ram Bits: 2340000
• Number Of I /o: 324
• Voltage - Supply: 1.15 V ~ 1.25 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: -
• Other names: 544-2683

Page 8
Figure 1. Programmable PPM Detector Options in the ALTGX MegaWizard Plug-In Manager
Errata Sheet for Cyclone IV Devices
Removal of the ±500 PPM and ±1000 PPM Options for the Programmable PPM Detector in the ALTGX MegaWizard Plug-In Manager
1
Figure 1
Plug-In Manager in the Quartus II software, version 10.0.
Designs compiled with the Quartus II software version 10.0 and earlier may have a
link failure risk when the receiver is operating in a system that has ±500 PPM or
±1000 PPM differences for the reference clock frequencies between the upstream
transmitter and the local receiver. Using CDR Manual Lock mode does not overcome
the link failure risk.
For a receiver design that has the ±500 PPM or ±1000 PPM options selected in the
Programmable PPM Detector feature, Altera recommends evaluating the system
operation with different options, ranging between ±62.5 PPM and ±300 PPM. To
change the Programmable PPM Detector option, regenerate and recompile the
ALTGX MegaWizard Plug-In Manager design file with the supported options.
If you compiled your designs using a Quartus II software version prior to 10.0 SP1,
and you have selected the ±500 PPM or the ±1000 PPM option for the Programmable
PPM Detector feature, the Quartus II Analysis and Synthesis error will be reported in
the Quartus II software version 10.0 SP1 and later.
shows the Programmable PPM Detector options in ALTGX MegaWizard
March 2011 Altera Corporation