EP4CGX30CF23C8N Datasheet, PDF (36/42 Pages) Altera Corporation – Cyclone IV Device Datasheet

1–36
Chapter 1: Cyclone IV Device Datasheet
Switching Characteristics
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
Fast Corner
C6
I7
Max Offset
Slow Corner
C6
C7
C8
Unit
I7
Input delay from pin to
internal cells
Pad to I/O
dataout to
core
7
Input delay from pin to Pad to I/O
input register
input register
8
Delay from output
register to output pin
I/O output
register to
pad
2
Input delay from
Pad to global
dual-purpose clock pin clock
12
to fan-out destinations network
0 1.313 1.209 2.184 2.336 2.451 2.387 ns
0 1.312 1.208 2.200 2.399 2.554 2.446 ns
0 0.438 0.404 0.751 0.825 0.886 0.839 ns
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
Fast Corner
C6
I7
Max Offset
Slow Corner
C6
C7
C8
Unit
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 Pad to I/O
input register
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
Cyclone IV Device Handbook,
Volume 3
December 2013 Altera Corporation