EP3SL150F780I3N Altera, EP3SL150F780I3N Datasheet - Page 258

• Manufacturer Part Number: EP3SL150F780I3N
• Description: Stratix III
• Manufacturer: Altera

Termination Schemes for I/O Standards
Figure 7–23. Stratix III Differential SSTL I/O Standard Termination
7–40
Stratix III Device Handbook, Volume 1
Termination
External
On-Board
Termination
OCT
Differential SSTL Class I
Series OCT
Transmitter
Transmitter
50 Ω
25 Ω
25 Ω
Differential SSTL Class I
Z
Z
50 Ω
50 Ω
0
0
= 50 Ω
= 50 Ω
50 Ω
V TT V TT
V CCIO
50 Ω
GND
100 Ω
100 Ω
100 Ω
100 Ω
V CCIO
Receiver
Receiver
GND
Series OCT
Differential SSTL Class II
Transmitter
Transmitter
25 Ω
Differential SSTL Class II
50 Ω
25 Ω
25 Ω
V TT V TT
V TT
V TT
50 Ω
50 Ω
Z
Z
0
0
50 Ω
= 50 Ω
= 50 Ω
50 Ω
50 Ω
50 Ω
V CCIO
V TT V TT
100 Ω
100 Ω
GND
100 Ω
100 Ω
50 Ω
Altera Corporation
V CCIO
Receiver
November 2007
GND
Receiver