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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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MPC8544EBVTALFA датащи(PDF) 22 Page - NXP Semiconductors |
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MPC8544EBVTALFA датащи(HTML) 22 Page - NXP Semiconductors |
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22 / 117 page  MPC8544E PowerQUICC III Integrated Processor Hardware Specifications, Rev. 8 22 Freescale Semiconductor DUART Figure 5 shows the DDR SDRAM output timing diagram. Figure 5. DDR and DDR2 SDRAM Output Timing Diagram Figure 6 provides the AC test load for the DDR bus. Figure 6. DDR AC Test Load 7DUART This section describes the DC and AC electrical specifications for the DUART interface of the MPC8544E. 7.1 DUART DC Electrical Characteristics Table 19 provides the DC electrical characteristics for the DUART interface. Table 19. DUART DC Electrical Characteristics Parameter Symbol Min Max Unit Notes High-level input voltage VIH 2OVDD + 0.3 V — Low-level input voltage VIL –0.3 0.8 V — Input current (VIN = 0 V or VIN = VDD)IIN —±5 μA1 High-level output voltage (OVDD = min, IOH = –2 mA) VOH 2.4 — V — ADDR/CMD tDDKHAS, tDDKHCS tDDKLDS tDDKHDS MDQ[x] MDQS[n] MCK MCK tMCK tDDKLDX tDDKHDX D1 D0 tDDKHAX, tDDKHCX Write A0 NOOP tDDKHME tDDKHMP tDDKHMH Output Z0 = 50 Ω GVDD/2 RL = 50 Ω |
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