EP3SE50F780I3N Altera, EP3SE50F780I3N Datasheet - Page 43

• Manufacturer Part Number: EP3SE50F780I3N
• Description: Stratix III
• Manufacturer: Altera

Chapter 1: Stratix III Device Datasheet: DC and Switching Characteristics
I/O Timing
© July 2010 Altera Corporation
5. Compare the results of steps 2 and 4. The increase or decrease in delay must be
The Quartus II software reports the timing with the conditions listed in
using
the output timing of the Quartus II software.
Figure 1–6. Output Delay Timing Report Setup for Single-Ended Outputs and Dedicated Differential
Outputs
Note to
(1) Output pin timing is reported at the output pin of the FPGA device. Additional delays for loading and board trace delay
Figure 1–7
the Quartus II software for differential outputs with single and multiple external
resistors, respectively.
Figure 1–7. Output Delay Timing Report Setup for Differential Outputs with Single External Resistor
Figure 1–8. Output Delay Timing Report Setup for Differential Outputs with Three External Resistor
added to or subtracted from the I/O Standard Output Adder delays to yield the
actual worst-case propagation delay (clock-to-output) of the PCB trace.
must be accounted for with IBIS model simulations.
Figure
Equation 1–1 on page
(Note 1)
and
1–6:
Figure 1–8
Output
Buffer
V
GND
CCIO
Output
show the circuit that is represented by the output timing of
Differential Outputs
Differential Outputs
Non-Dedicated
Non-Dedicated
1–7.
V
MEAS
Figure 1–6
R
S
V
V
V
V
V
GND
MEAS
MEAS
MEAS
MEAS
TT
R
C
shows the circuit that is represented by
T
L
R
R
S
S
R
R
P
P
R
R
D
Stratix III Device Handbook, Volume 2
D
Output
Output
p
n
R
D
Table 1–37
1–33