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MC7448HX1400N 데이터시트(PDF) 5 Page - Freescale Semiconductor, Inc |
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MC7448HX1400N 데이터시트(HTML) 5 Page - Freescale Semiconductor, Inc |
5 / 12 page MPC7448 Hardware Specifications Addendum for the MC7448xxnnnnNx Series, Rev. 6 Freescale Semiconductor 5 General Parameters Table 7 provides the power consumption for the MPC7448 part numbers described by this document; see Section 11.1, “Part Numbers Addressed by This Specification,” for more information. The MPC7448 RISC Microprocessor Hardware Specifications presents guidelines on the use of these parameters for system design. For information on power consumption when dynamic frequency switching is enabled, see Section 9.8.5, “Dynamic Frequency Switching (DFS),” in the hardware specifications. The power consumptions provided in Table 7 represent the power consumption of each speed grade when operated at the rated maximum core frequency (see Table 8). Freescale sorts devices by power as well as by core frequency, and power limits for each speed grade are independent of each other. Each device is tested at its maximum core frequency only. (Note that Deep Sleep Mode power consumption is independent of clock frequency.) Operating a device at a frequency lower than its rated maximum is fully supported provided the clock frequencies are within the specifications given in Table 8, and a device operated at a core frequency below its rated maximum will have lower power consumption. However, inferences should not be made about a device’s power consumption based on the power specifications of another (lower) speed grade. For example, a 1267 MHz device operated at 1000 MHz may not exhibit the same power consumption as a 1000 MHz device operated at 1000 MHz. NOTE The power consumption information in this table applies when the device operates at the nominal core voltage indicated in Table 4. For power consumption at derated core voltage conditions, see Section 5.3, “Voltage and Frequency Derating.” |
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