EP4CE55F23I7 Altera, EP4CE55F23I7 Datasheet - Page 122

• Manufacturer Part Number: EP4CE55F23I7
• Description: IC CYCLONE IV FPGA 55K 484FBGA
• Manufacturer: Altera
• Series: CYCLONE® IV Er

Specifications of EP4CE55F23I7

• 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: -40°C ~ 100°C
• Package / Case: 484-FBGA
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Number Of Gates: -

6–14
Voltage-Referenced I/O Standard Termination
Figure 6–5. Cyclone IV Devices HSTL I/O Standard Termination
Figure 6–6. Cyclone IV Devices SSTL I/O Standard Termination
Cyclone IV Device Handbook, Volume 1
Termination
Termination
and without
Calibration
On-Board
OCT with
External
Termination
and without
Termination
Calibration
OCT with
On-Board
External
Cyclone IV Device
Family Series OCT
Transmitter
Voltage-referenced I/O standards require an input reference voltage (V
termination voltage (V
termination voltage of the transmitting device, as shown in
Cyclone IV Device
Family Series OCT
Transmitter
Transmitter
Transmitter
50
50
Ω
Ω
25 Ω
SSTL Class I
HSTL Class I
50 Ω
50
50 Ω
V REF
50 Ω
V REF
50 Ω
Ω
V REF
50 Ω
50 Ω
V REF
50 Ω
V TT
V TT
V TT
V TT
TT
). The reference voltage of the receiving device tracks the
Receiver
Receiver
Receiver
Receiver
Cyclone IV Device
Family Series OCT
Cyclone IV Device
Family Series OCT
Transmitter
Transmitter
Transmitter
Transmitter
25
25
Ω
Ω
V TT
V TT
25 Ω
50 Ω
HSTL Class II
50 Ω
Chapter 6: I/O Features in Cyclone IV Devices
SSTL Class II
50 Ω
50 Ω
V TT
V TT
50 Ω
50 Ω
V REF
50 Ω
© December 2010 Altera Corporation
50 Ω
V REF
Termination Scheme for I/O Standards
50
50 Ω
Figure 6–5
V TT
50 Ω
Ω
V REF
V REF
V TT
50 Ω
V TT
V TT
Receiver
Receiver
Receiver
Receiver
and
REF
) and a
Figure
6–6.