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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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MPC8540CPX667JC датащи(PDF) 11 Page - Freescale Semiconductor, Inc |
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MPC8540CPX667JC датащи(HTML) 11 Page - Freescale Semiconductor, Inc |
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11 / 104 page  MPC8540 Integrated Processor Hardware Specifications, Rev. 4 Freescale Semiconductor 11 Power Characteristics 2.1.4 Output Driver Characteristics Table 3 provides information on the characteristics of the output driver strengths. The values are preliminary estimates. 3 Power Characteristics The estimated power dissipation on the VDD supply for the MPC8540 is shown in Table 4. Table 3. Output Drive Capability Driver Type Programmable Output Impedance ( Ω) Supply Voltage Notes Local bus interface utilities signals 25 OVDD = 3.3 V 1 42 (default) PCI signals 25 2 42 (default) DDR signal 20 GVDD = 2.5 V TSEC/10/100 signals 42 LVDD = 2.5/3.3 V DUART, system control, I2C, JTAG 42 OVDD = 3.3 V RapidIO N/A (LVDS signaling) N/A Notes: 1. The drive strength of the local bus interface is determined by the configuration of the appropriate bits in PORIMPSCR. 2. The drive strength of the PCI interface is determined by the setting of the PCI_GNT1 signal at reset. Table 4. MPC8540 VDD Power Dissipation 1,2 CCB Frequency (MHz) Core Frequency (MHz) Typical Power3,4 Maximum Power5 Unit 200 400 4.6 7.2 W 500 4.9 7.5 600 5.3 7.9 267 533 5.5 8.2 W 667 5.9 8.7 800 6.4 10.2 |
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