1–36
Chapter 1: Cyclone IV Device Datasheet
Switching Characteristics
December 2016
Altera Corporation
list the IOE programmable delay for Cyclone IV GX
devices.
Table 1–44. IOE Programmable Delay on Column Pins for Cyclone IV GX Devices
Parameter
Paths
Affected
Number
of
Settings
Min
Offset
Max Offset
Unit
Fast 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
(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
Parameter
Paths
Affected
Number
of
Settings
Min
Offset
Max Offset
Unit
Fast 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
(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
Summary of Contents for Cyclone IV
Page 10: ...x Chapter Revision Dates Cyclone IV Device Handbook March 2016 Altera Corporation Volume 1...
Page 14: ...I 2 Section I Device Core Cyclone IV Device Handbook March 2016 Altera Corporation Volume 1...
Page 274: ...vi Contents Cyclone IV Device Handbook February 2015 Altera Corporation Volume 2...
Page 440: ...iv Contents Cyclone IV Device Handbook December 2016 Altera Corporation Volume 3...
Page 442: ...vi Chapter Revision Dates Cyclone IV Device Handbook December 2016 Altera Corporation Volume 3...
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