Altera Cyclone IV - Page 481

Chapter 1: Cyclone IV Device Datasheet 1–35
Switching Characteristics
December 2016 Altera Corporation Cyclone IV Device Handbook,
Volume 3
Table 1–42 and Table 1–43 list the IOE programmable delay for Cyclone IV E 1.2 V
core voltage devices.
Table 1–42. IOE Programmable Delay on Column Pins for Cyclone IV E 1.2 V Core Voltage Devices
(1), (2)
Parameter
Paths
Affected
Number
of
Setting
Min
Offset
Max Offset
UnitFast Corner Slow Corner
C6 I7 A7 C6 C7 C8 I7 A7
Input delay from pin to
internal cells
Pad to I/O
dataout to
core
7 0 1.314 1.211 1.211 2.177 2.340 2.433 2.388 2.508 ns
Input delay from pin to
input register
Pad to I/O
input register
8 0 1.307 1.203 1.203 2.19 2.387 2.540 2.430 2.545 ns
Delay from output
register to output pin
I/O output
register to
pad
2 0 0.437 0.402 0.402 0.747 0.820 0.880 0.834 0.873 ns
Input delay from
dual-purpose clock pin
to fan-out destinations
Pad to global
clock
network
12 0 0.693 0.665 0.665 1.200 1.379 1.532 1.393 1.441 ns
Notes to Table 1–42:
(1) The incremental values for the settings are generally linear. For the exact values for 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 1–43. IOE Programmable Delay on Row Pins for Cyclone IV E 1.2 V Core Voltage Devices
(1), (2)
Parameter
Paths
Affected
Number
of
Setting
Min
Offset
Max Offset
UnitFast Corner Slow Corner
C6 I7 A7 C6 C7 C8 I7 A7
Input delay from pin to
internal cells
Pad to I/O
dataout to
core
7 0 1.314 1.209 1.209 2.201 2.386 2.510 2.429 2.548 ns
Input delay from pin to
input register
Pad to I/O
input register
8 0 1.312 1.207 1.207 2.202 2.402 2.558 2.447 2.557 ns
Delay from output
register to output pin
I/O output
register to
pad
2 0 0.458 0.419 0.419 0.783 0.861 0.924 0.875 0.915 ns
Input delay from
dual-purpose clock pin
to fan-out destinations
Pad to global
clock
network
12 0 0.686 0.657 0.657 1.185 1.360 1.506 1.376 1.422 ns
Notes to Table 1–43:
(1) The incremental values for the settings are generally linear. For the exact values for 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.