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EPM1270F100A 数据表(PDF) 70 Page - Altera Corporation |
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EPM1270F100A 数据表(HTML) 70 Page - Altera Corporation |
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70 / 86 page  5–12 Chapter 5: DC and Switching Characteristics Timing Model and Specifications MAX II Device Handbook © Novermber 2008 Altera Corporation Table 5–17 through Table 5–20 show the adder delays for tZX and tXZ microparameters when using an I/O standard other than 3.3-V LVTTL with 16 mA drive strength. t XZ (3) Output buffer disable delay — 756 — 982 — 1,209 — 1,045 — 1,264 ps t ZX (4) Output buffer enable delay — 1,003 — 1,303 — 1,604 — 1,160 — 1,325 ps Notes to Table 5–16: (1) Delay numbers for tGLOB differ for each device density and speed grade. The delay numbers for tGLOB, shown in Table 5–16, are based on an EPM240 device target. (2) Refer to Table 5–29 and 5–21 for delay adders associated with different I/O standards, drive strengths, and slew rates. (3) Refer to Table 5–19 and 5–13 for tXZ delay adders associated with different I/O standards, drive strengths, and slew rates. (4) Refer to Table 5–17 and 5–12 for tZX delay adders associated with different I/O standards, drive strengths, and slew rates. Table 5–16. IOE Internal Timing Microparameters (Part 2 of 2) Symbol Parameter –3 Speed Grade –4 Speed Grade –5 Speed Grade –6 Speed Grade –7 Speed Grade Unit Min Max Min Max Min Max Min Max Min Max Table 5–17. tZX IOE Microparameter Adders for Fast Slew Rate Standard –3 Speed Grade –4 Speed Grade –5 Speed Grade –6 Speed Grade –7 Speed Grade Unit Min Max Min Max Min Max Min Max Min Max 3.3-V LVCMOS 8 mA — 0 — 0 — 0 — 0 — 0 ps 4 mA — 28 — 37 — 45 — 72 — 71 ps 3.3-V LVTTL 16 mA — 0 — 0 — 0 — 0 — 0 ps 8 mA — 28 — 37 — 45 — 72 — 71 ps 2.5-V LVTTL 14 mA — 14 — 19 — 23 — 75 — 87 ps 7 mA — 314 — 409 — 503 — 162 — 174 ps 1.8-V LVTTL 6 mA — 450 — 585 — 720 — 279 — 289 ps 3 mA — 1,443 — 1,876 — 2,309 — 499 — 508 ps 1.5-V LVTTL 4 mA — 1,118 — 1,454 — 1,789 — 580 — 588 ps 2 mA — 2,410 — 3,133 — 3,856 — 915 — 923 ps 3.3-V PCI 20 mA — 19 — 25 — 31 — 72 — 71 ps Table 5–18. tZX IOE Microparameter Adders for Slow Slew Rate Standard –3 Speed Grade –4 Speed Grade –5 Speed Grade –6 Speed Grade –7 Speed Grade Unit Min Max Min Max Min Max Min Max Min Max 3.3-V LVCMOS 8 mA — 6,350 — 6,050 — 5,749 — 5,951 — 5,952 ps 4 mA — 9,383 — 9,083 — 8,782 — 6,534 — 6,533 ps 3.3-V LVTTL 16 mA — 6,350 — 6,050 — 5,749 — 5,951 — 5,952 ps 8 mA — 9,383 — 9,083 — 8,782 — 6,534 — 6,533 ps |
类似零件编号 - EPM1270F100A |
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类似说明 - EPM1270F100A |
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