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ML7005MB 数据表(PDF) 14 Page - OKI electronic componets |
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ML7005MB 数据表(HTML) 14 Page - OKI electronic componets |
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14 / 25 page  ¡ Semiconductor ML7005 14/24 Processor Interface Characteristics (Motorola Processor Mode) Figure 5 Processor Interface Timing (Motorola Processor Mode) Parameter Symbol Condition Typ. Unit READ Signal Period tCYC — ms — READ Signal Pulse Width tHI ns "H" period — Min. Max. 1— — 200 tLO "L" period — — 200 (VDD = 2.7 to 5.5 V, Ta = –30 to +85°C) ALE tAS ALE Æ READ —— 80 tAH READ Æ ALE — — 20 CS tCS CS Æ READ —— 80 tCH READ Æ CS —— 20 WR tWRS WR Æ READ —— 80 tWRH READ Æ WR —— 20 D3 to D0 (Write) tDWS D3 to D0 Æ READ —— 80 tDWH READ Æ D3 to D0 — — 30 D3 to D0 (Read) tDRD READ Æ D3 to D0 VOL £ 0.4 V, VOH ≥ VDD – 0.4 V 90 180 0 tDRH D3 to D0 Æ READ 37 60 5 See Figure 5 SETUP Time HOLD Time SETUP Time HOLD Time SETUP Time HOLD Time SETUP Time HOLD Time Delay Time Hold Time READ (Clock) ALE (Address) CS WR (Read / Write) tHI tLO D3 to D0 DATA "Write" tCYC tDWS tDWH tWRH tWRS tCH tCS tAH tAS tHI tLO DATA "Read" tCYC tDRH tWRH tWRS tCH tCS tAH tAS tDRD |
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