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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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MPC5604E датащи(PDF) 28 Page - Freescale Semiconductor, Inc |
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MPC5604E датащи(HTML) 28 Page - Freescale Semiconductor, Inc |
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28 / 75 page  MPC5604E Microcontroller Data Sheet, Rev. 4 Electrical characteristics Freescale Semiconductor 28 •VDD_LV_COR (1.2V) — This is the core logic supply. In the internal regulation mode, the core supply is derived from the main supply via an on-chip linear regulator driving an internal PMOS ballast transistor. The PMOS ballast transistors are located in the pad ring and their source connectors are directly bonded to a dedicated pin. See Figure 4. Figure 4. Internal Regulation Mode The core supply can also be provided externally. Table 12 shows how to connect VDD_HV_S_BALLAST pin for internal and external core supply mode. NOTE VDD_HV_S_BALLAST pin is the supply pin, which carries the entire core logic current in the internal regulation mode, while in external regulation mode it is used as a signal to bypass the regulator. Table 12. Core Supply Select Mode VDD_HV_S_Ballast Internal supply mode (via internal PMOS ballast transistors) VDD_HV_IO (3.3V) External supply mode (e.g., via external switched regulator) VDD_LV_COR (1.2V) 3.3V 1.2V Pads Pins Vreg LVD Vss_HV_IO0_X POR_B Vdd_LV_COR0_X (3 supply pairs) Vss_LV_COR0_X Vdd_LV_REGCOR0 Vdd_HV_S_Ballast0/1 Vdd_HV_IO0_X |
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