MPC8555CPXAPF datasheet(21/88 Pages) FREESCALE

부품명	MPC8555CPXAPF

상세설명	PowerQUICC??III Integrated Communications Processor Hardware Specifications

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제조업체	FREESCALE [Freescale Semiconductor, Inc]

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MPC8555E PowerQUICC™ III Integrated Communications Processor Hardware Specifications, Rev. 4

Freescale Semiconductor

DUART

Figure 5 provides the AC test load for the DDR bus.

Figure 5. DDR AC Test Load

7DUART

This section describes the DC and AC electrical specifications for the DUART interface of the

MPC8555E.

7.1

DUART DC Electrical Characteristics

Table 16 provides the DC electrical characteristics for the DUART interface of the MPC8555E.

Table 15. DDR SDRAM Measurement Conditions

Symbol

DDR

Unit

Notes

VTH

MVREF ± 0.31 V

VOUT

0.5

× GV

Notes:

1. Data input threshold measurement point.

2. Data output measurement point.

Table 16. DUART DC Electrical Characteristics

Parameter

Symbol

Test Condition

Min

Max

Unit

High-level input voltage

VIH

VOUT ≥ VOH (min) or

OVDD + 0.3

Low-level input voltage

VIL

VOUT ≤ VOL (max)

–0.3

0.8

Input current

IIN

VIN

1 = 0 V or V

IN = VDD

—±5

μA

High-level output voltage

VOH

OVDD = min,

IOH = –100 μA

OVDD – 0.2

—

Low-level output voltage

VOL

OVDD = min, IOL = 100 μA—

0.2

Note:

1. Note that the symbol VIN, in this case, represents the OVIN symbol referenced in Table 1 and Table 2.

Output

Z0 = 50 Ω

GVDD/2

RL = 50 Ω

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