MPC8544EBVTALF datasheet(45/120 Pages) FREESCALE

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MPC8544E PowerQUICC™ III Integrated Processor Hardware Specifications, Rev. 3

Freescale Semiconductor

Local Bus

10 Local Bus

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

MPC8544E.

10.1

Local Bus DC Electrical Characteristics

Table 42 provides the DC electrical characteristics for the local bus interface operating at

BVDD =3.3 VDC.

Table 43 provides the DC electrical characteristics for the local bus interface operating at

BVDD =2.5 VDC.

Table 44 provides the DC electrical characteristics for the local bus interface operating at

BVDD =1.8 VDC.

Table 42. Local Bus DC Electrical Characteristics (3.3 V DC)

Parameter

Symbol

Min

Max

Unit

Notes

High-level input voltage

VIH

2BVDD + 0.3

—

Low-level input voltage

VIL

–0.3

0.8

—

Input current (BVIN = 0 V or BVIN = BOVDD)IIN

—±5

μA1

High-level output voltage (BVDD = min, IOH = –2 mA)

VOH

2.4

—

Low-level output voltage (BVDD = min, IOL = 2 mA)

VOL

—0.4

—

Note:

1. The symbol BVIN, in this case, represents the BVIN symbol referenced in Table 1 and Table 2.

Table 43. Local Bus DC Electrical Characteristics (2.5 V DC)

Parameter

Symbol

Min

Max

Unit

Notes

High-level input voltage

VIH

1.70

BVDD + 0.3

—

Low-level input voltage

VIL

–0.3

0.7

—

Input current (BVIN = 0 V or BVIN = BVDD)IIN

—

±15

μA1

High-level output voltage (BVDD = min, IOH = –1 mA)

VOH

2.0

—

Low-level output voltage (BVDD = min, IOL = 1 mA)

VOL

—0.4

—

Note:

1. The symbol BVIN, in this case, represents the BVIN symbol referenced in Table 1 and Table 2.

Table 44. Local Bus DC Electrical Characteristics (1.8 V DC)

Parameter

Symbol

Min

Max

Unit

Notes

High-level input voltage

VIH

1.3

BVDD + 0.3

—

Low-level input voltage

VIL

–0.3

0.6

—

Input current (BVIN = 0 V or BVIN = BVDD)IIN

—±15

μA1

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