EP4SE360F35I4 Datasheet, PDF (214/432 Pages) Altera Corporation – This section provides a complete overview of all features relating to the Stratix IV device family, which is the most architecturlly advanced

6–40
Chapter 6: I/O Features in Stratix IV Devices
Termination Schemes for I/O Standards
Figure 6–28. HSTL I/O Standard Termination
Termination
External
On-Board
Termination
Transmitter
HSTL Class I
VTT
50 Ω
50 Ω
VREF
Receiver
Transmitter
HSTL Class II
VTT
VTT
50 Ω 50 Ω
50 Ω
VREF
Receiver
OCT
Transmit
Stratix IV
Series OCT 50 Ω
Transmitter
VTT
50 Ω
50 Ω
VREF
Receiver
Stratix IV
Series OCT 25 Ω
Transmitter
VTT
VTT
50 Ω 50 Ω
50 Ω
VREF
Receiver
OCT
Receive
Transmitter
50 Ω
VREF
VCCIO
100 Ω
Stratix IV
Parallel OCT
100 Ω
Receiver
Transmitter
VTT
50 Ω
50 Ω
VREF
VCCIO
Stratix IV
Parallel OCT
100 Ω
100 Ω
Receiver
OCT
in Bi-
Directional
Pins
Series OCT ^VCCIO
50 Ω
100 Ω
100 Ω
Stratix IV
50 Ω
VCCIO
100 Ω
100 Ω
Series
OCT 50 Ω
Stratix IV
Series OCT ^VCCIO
25 Ω
100 Ω
50 8
100 Ω
Stratix IV
VCCIO
100 Ω
100 Ω
Series
OCT 25 Ω
Stratix IV
Stratix IV Device Handbook
Volume 1
September 2012 Altera Corporation