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MAX2 bảng dữ liệu(PDF) 84 Page - Altera Corporation |
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MAX2 bảng dữ liệu(HTML) 84 Page - Altera Corporation |
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84 / 297 page  5–12 Chapter 5: DC and Switching Characteristics Timing Model and Specifications MAX II Device Handbook © August 2009 Altera Corporation Table 5–17 through Table 5–20 show the adder delays for t ZX and tXZ microparameters when using an I/O standard other than 3.3-V LVTTL with 16 mA drive strength. Table 5–16. IOE Internal Timing Microparameters Symbol Parameter MAX II / MAX IIG MAX IIZ Unit –3 Speed Grade –4 Speed Grade –5 Speed Grade –6 Speed Grade –7 Speed Grade –8 Speed Grade Min Max Min Max Min Max Min Max Min Max Min Max t FAS TIO Data output delay from adjacent LE to I/O block — 159 — 207 — 254 — 170 — 348 — 428 ps t IN I/O input pad and buffer delay — 708 — 920 — 1,132 — 907 — 970 — 986 ps t GLOB (1) I/O input pad and buffer delay used as global signal pin — 1,519 — 1,974 — 2,430 — 2,261 — 2,670 — 3,322 ps t IOE Internally generated output enable delay — 354 — 374 — 460 — 530 — 966 — 1,410 ps t DL Input routing delay — 224 — 291 — 358 — 318 — 410 — 509 ps t OD (2) Output delay buffer and pad delay — 1,064 — 1,383 — 1,702 — 1,319 — 1,526 — 1,543 ps t XZ (3) Output buffer disable delay — 756 — 982 — 1,209 — 1,045 — 1,264 — 1,276 ps t ZX (4) Output buffer enable delay — 1,003 — 1,303 — 1,604 — 1,160 — 1,325 — 1,353 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 5–32 and 5–24 for delay adders associated with different I/O standards, drive strengths, and slew rates. (3) Refer to Table 5–19 and 5–14 for tXZ delay adders associated with different I/O standards, drive strengths, and slew rates. (4) Refer to Table 5–17 and 5–13 for tZX delay adders associated with different I/O standards, drive strengths, and slew rates. Table 5–17. tZX IOE Microparameter Adders for Fast Slew Rate (Part 1 of 2) Standard MAX II / MAX IIG MAX IIZ Unit –3 Speed Grade –4 Speed Grade –5 Speed Grade –6 Speed Grade –7 Speed Grade –8 Speed Grade Min Max Min Max Min Max Min Max Min Max Min Max 3.3-V LVTTL 16 mA — 0 — 0 — 0 — 0 — 0 — 0 ps 8 mA —28 — 37 —45 — 72 — 71 — 74 ps 3.3-V LVCMOS 8 mA — 0 — 0 — 0 —0 —0 —0 ps 4 mA —28 — 37 —45 — 72 — 71 — 74 ps 2.5-V LVTTL / LVCMOS 14 mA —14 — 19 —23 — 75 — 87 — 90 ps 7 mA — 314 — 409 — 503 — 162 — 174 — 177 ps 1.8-V LVTTL / LVCMOS 6 mA — 450 — 585 — 720 — 279 — 289 — 291 ps 3 mA — 1,443 — 1,876 — 2,309 — 499 — 508 — 512 ps |
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