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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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MPC8343CVRADDB датащи(PDF) 42 Page - Freescale Semiconductor, Inc |
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MPC8343CVRADDB датащи(HTML) 42 Page - Freescale Semiconductor, Inc |
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42 / 79 page  MPC8343EA PowerQUICC II Pro Integrated Host Processor Hardware Specifications, Rev. 10 42 Freescale Semiconductor PCI 13 PCI This section describes the DC and AC electrical specifications for the PCI bus of the MPC8343EA. 13.1 PCI DC Electrical Characteristics Table 40 provides the DC electrical characteristics for the PCI interface of the MPC8343EA. 13.2 PCI AC Electrical Specifications This section describes the general AC timing parameters of the PCI bus of the MPC8343EA. Note that the PCI_CLK or PCI_SYNC_IN signal is used as the PCI input clock depending on whether the device is configured as a host or agent device. Table 41 provides the PCI AC timing specifications at 66 MHz. Table 40. PCI DC Electrical Characteristics Parameter Symbol Test Condition Min Max Unit High-level input voltage VIH VOUT ≥ VOH (min) or 2 OVDD +0.3 V Low-level input voltage VIL VOUT ≤ VOL (max) –0.3 0.8 V Input current IIN VIN 1= 0 V or V IN = OVDD —±5 μA High-level output voltage VOH OVDD = min, IOH = –100 μA OVDD –0.2 — V Low-level output voltage VOL OVDD = min, IOL = 100 μA —0.2 V Note: 1. The symbol VIN, in this case, represents the OVIN symbol referenced in Table 1. Table 41. PCI AC Timing Specifications at 66 MHz1 Parameter Symbol2 Min Max Unit Notes Clock to output valid tPCKHOV —6.0 ns 3 Output hold from clock tPCKHOX 1— ns 3 Clock to output high impedance tPCKHOZ —14 ns 3, 4 Input setup to clock tPCIVKH 3.0 — ns 3, 5 |
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