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LM12458CIVF Datasheet(PDF) 20 Page - National Semiconductor (TI) |
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LM12458CIVF Datasheet(HTML) 20 Page - National Semiconductor (TI) |
20 / 36 page Timing Diagrams V A+=VD+ = +5V, tR =tF = 3 ns, CL = 100 pF for the INT, DMARQ, D0–D15 outputs. 1, 3: CS or Address valid to ALE low set-up time. 2, 4: CS or Address valid to ALE low hold time. 5: ALE pulse width 6: RD high to next ALE high 7: ALE low to RD low 8: RD pulse width 9: RD high to next RD or WR low 10: ALE low to WR low 11: WR pulse width 12: WR high to next ALE high 13: WR high to next WR or RD low 14: Data valid to WR high set-up time 15: Data valid to WR high hold time 16: RD low to data bus out of TRI-STATE 17: RD high to TRI-STATE 18: RD low to data valid (access time) 01126416 FIGURE 10. Multiplexed Data Bus www.national.com 20 |
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