Altera Cyclone IV - Page 482

1–36 Chapter 1: Cyclone IV Device Datasheet
Switching Characteristics
Cyclone IV Device Handbook, December 2016 Altera Corporation
Volume 3
Table 1–44 and Table 1–45 list the IOE programmable delay for Cyclone IV GX
devices.
Table 1–44. IOE Programmable Delay on Column Pins for Cyclone IV GX Devices
(1), (2)
Parameter
Paths
Affected
Number
of
Settings
Min
Offset
Max Offset
UnitFast Corner Slow Corner
C6 I7 C6 C7 C8 I7
Input delay from pin to
internal cells
Pad to I/O
dataout to
core
7 0 1.313 1.209 2.184 2.336 2.451 2.387 ns
Input delay from pin to
input register
Pad to I/O
input register
8 0 1.312 1.208 2.200 2.399 2.554 2.446 ns
Delay from output
register to output pin
I/O output
register to
pad
2 0 0.438 0.404 0.751 0.825 0.886 0.839 ns
Input delay from
dual-purpose clock pin
to fan-out destinations
Pad to global
clock
network
12 0 0.713 0.682 1.228 1.41 1.566 1.424 ns
Notes to Table 1–44:
(1) The incremental values for the settings are generally linear. For exact values of each setting, use the latest version of the Quartus II software.
(2) The minimum and maximum offset timing numbers are in reference to setting 0 as available in the Quartus II software.
Table 1–45. IOE Programmable Delay on Row Pins for Cyclone IV GX Devices
(1), (2)
Parameter
Paths
Affected
Number
of
Settings
Min
Offset
Max Offset
UnitFast Corner Slow Corner
C6 I7 C6 C7 C8 I7
Input delay from pin to
internal cells
Pad to I/O
dataout to
core
7 0 1.314 1.210 2.209 2.398 2.526 2.443 ns
Input delay from pin to
input register
Pad to I/O
input register
8 0 1.313 1.208 2.205 2.406 2.563 2.450 ns
Delay from output
register to output pin
I/O output
register to
pad
2 0 0.461 0.421 0.789 0.869 0.933 0.884 ns
Input delay from
dual-purpose clock pin
to fan-out destinations
Pad to global
clock network
12 0 0.712 0.682 1.225 1.407 1.562 1.421 ns
Notes to Table 1–45:
(1) The incremental values for the settings are generally linear. For exact values of each setting, use the latest version of Quartus II software.
(2) The minimum and maximum offset timing numbers are in reference to setting 0 as available in the Quartus II software