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EP1C20F400I7ES 数据表(PDF) 79 Page - Altera Corporation |
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EP1C20F400I7ES 数据表(HTML) 79 Page - Altera Corporation |
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79 / 106 page  Altera Corporation 4–9 May 2008 Preliminary Timing Model Typically, the user-mode current during device operation is lower than the power-up current in Table 4–17. Altera recommends using the Cyclone Power Calculator, available on the Altera web site, to estimate the user-mode ICCINT consumption and then select power supplies or regulators based on the higher value. Timing Model The DirectDrive technology and MultiTrack interconnect ensure predictable performance, accurate simulation, and accurate timing analysis across all Cyclone device densities and speed grades. This section describes and specifies the performance, internal, external, and PLL timing specifications. All specifications are representative of worst-case supply voltage and junction temperature conditions. Preliminary and Final Timing Timing models can have either preliminary or final status. The Quartus® II software issues an informational message during the design compilation if the timing models are preliminary. Table 4–18 shows the status of the Cyclone device timing models. Preliminary status means the timing model is subject to change. Initially, timing numbers are created using simulation results, process data, and other known parameters. These tests are used to make the preliminary numbers as close to the actual timing parameters as possible. Final timing numbers are based on actual device operation and testing. These numbers reflect the actual performance of the device under worst-case voltage and junction temperature conditions. Table 4–18. Cyclone Device Timing Model Status Device Preliminary Final EP1C3 — v EP1C4 — v EP1C6 — v EP1C12 — v EP1C20 — v |
类似零件编号 - EP1C20F400I7ES |
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类似说明 - EP1C20F400I7ES |
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