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EP4CE6 Datasheet(PDF) 36 Page - Altera Corporation |
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EP4CE6 Datasheet(HTML) 36 Page - Altera Corporation |
36 / 42 page 1–36 Chapter 1: Cyclone IV Device Datasheet Switching Characteristics Cyclone IV Device Handbook, December 2013 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 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 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 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 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 |
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