MPC8541PXAKD datasheet(11/84 Pages) FREESCALE

Part #	MPC8541PXAKD

Description	PowerQUICC??III Integrated Communications Processor Hardware Specifications

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Manufacturer	FREESCALE [Freescale Semiconductor, Inc]

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MPC8541E PowerQUICC™ III Integrated Communications Processor Hardware Specifications, Rev. 4

Freescale Semiconductor

11

Power Characteristics

2.1.4

Output Driver Characteristics

Table 3 provides information on the characteristics of the output driver strengths. The values are

preliminary estimates.

3

Power Characteristics

The estimated typical power dissipation for this family of PowerQUICC III devices is shown in Table 4.

Table 3. Output Drive Capability

Driver Type

Programmable

Output Impedance

(

Ω)

Supply

Voltage

Notes

Local bus interface utilities signals

25

OVDD = 3.3 V

1

42 (default)

PCI signals

25

2

42 (default)

DDR signal

20

GVDD = 2.5 V

TSEC/10/100 signals

42

LVDD = 2.5/3.3 V

DUART, system control, I2C, JTAG

42

OVDD = 3.3 V

Notes:

1. The drive strength of the local bus interface is determined by the configuration of the appropriate bits in PORIMPSCR.

2. The drive strength of the PCI interface is determined by the setting of the PCI_GNT1 signal at reset.

Table 4. Power Dissipation(1) (2)

Notes:

1. The values do not include I/O supply power (OVDD, LVDD, GVDD) or AVDD..

2. Junction temperature is a function of die size, on-chip power dissipation, package thermal

resistance, mounting site (board) temperature, ambient temperature, air flow, power dissipation of

other components on the board, and board thermal resistance. Any customer design must take

these considerations into account to ensure the maximum 105 degrees junction temperature is not

exceeded on this device.

CCB Frequency

(MHz)

Core Frequency

(MHz)

VDD

Typical Power(3)(4)

(W)

Maximum Power(5)

(W)

200

400

1.2

4.4

6.1

500

1.2

4.7

6.5

600

1.2

5.0

6.8

267

533

1.2

4.9

6.7

667

1.2

5.4

7.2

800

1.2

5.8

8.6

333

667

1.2

5.5

7.4

833

1.2

6.0

8.8

1000(6)

1.3

9.0

12.2

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