MPC8540 View Datasheet(PDF) - Freescale Semiconductor

Part Name

Description

Manufacturer

MPC8540

Integrated Processor Hardware Specifications

Freescale Semiconductor 

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.

Table 3. Output Drive Capability

Driver Type

Programmable

Output Impedance

(Ω)

Supply

Voltage

Notes

Local bus interface utilities signals

25

42 (default)

OVDD = 3.3 V

1

PCI signals

25

2

42 (default)

DDR signal

TSEC/10/100 signals

DUART, system control, I2C, JTAG

RapidIO N/A (LVDS signaling)

20

GVDD = 2.5 V

42

LVDD = 2.5/3.3 V

42

OVDD = 3.3 V

N/A

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.

3 Power Characteristics

The estimated power dissipation on the VDD supply for the MPC8540 is shown in Table 4.

Table 4. MPC8540 VDD Power Dissipation 1,2

CCB Frequency

(MHz)

Core

Frequency (MHz)

Typical Power3,4

Maximum

Power5

Unit

200

400

4.6

7.2

W

500

4.9

7.5

600

5.3

7.9

267

533

5.5

8.2

W

667

5.9

8.7

800

6.4

10.2

MPC8540 Integrated Processor Hardware Specifications, Rev. 4

Freescale Semiconductor

11

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