MPC5200B datasheet(68/78 Pages) FREESCALE

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MPC5200B 데이터시트(PDF) 68 Page - Freescale Semiconductor, Inc

부품명	MPC5200B

상세설명	SDRAM/DDR Memory Controller

PDF	78 Pages

Scroll/Zoom	100%

제조업체	FREESCALE [Freescale Semiconductor, Inc]

홈페이지	http://www.freescale.com

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68 / 78 page

MPC5200B Data Sheet, Rev. 1

System Design Information

Freescale Semiconductor

System Design Information

5.1

Power Up/Down Sequencing

Figure 51 shows situations in sequencing the I/O VDD (VDD_IO), Memory VDD (VDD_IO_MEM), PLL

VDD (PLL_AVDD), and Core VDD (VDD_CORE).

VDD_MEM_IO

VDD_CORE

VSS_IO/CORE

SYS_PLL_AVDD

CORE_PLL_AVDD

NOTES:

All “open drain” outputs of the MPC5200B are actually regular three-state output drivers with the output data tied

low and the output enable controlled. Thus, unlike a true open drain, there is a current path from the external

system to the MPC5200B I/O power rail if the external signal is driven above the MPC5200B I/O power rail voltage.

Table 52. MPC5200B Pinout Listing (continued)

Name

Alias

Type

Power Supply

Output Driver

Type

Input

Type

Pull-up/

down

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