MPC5604E datasheet(28/75 Pages) FREESCALE

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MPC5604E Microcontroller Data Sheet, Rev. 4

Electrical characteristics

Freescale Semiconductor

•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

MPC5604E 데이터시트(PDF) 28 Page - Freescale Semiconductor, Inc