MPC8641DEC datasheet(13/140 Pages) FREESCALE

13 / 140 page

MPC8641 and MPC8641D Integrated Host Processor Hardware Specifications, Rev. 1

Freescale Semiconductor

Power Characteristics

The power dissipation for the dual core MPC8641D device is shown in Table 4.

Table 4. MPC8641D Power Dissipation (Dual Core)

Power Mode

Core Frequency

(MHz)

Platform

Frequency (MHz)

VDD_Coren,

VDD_PLAT

(Volts)

Junction

Temperature

Power

(Watts)

Notes

Typical

1500 MHz

600 MHz

1.1 V

65 oC

32.1

1, 2

Thermal

105 oC

43.4

1, 3

Maximum

49.9

1, 4

Typical

1333 MHz

533 MHz

1.05 V

65 oC

23.9

1, 2

Thermal

105 oC

30.0

1, 3

Maximum

34.1

1, 4

Typical

1250 MHz

500 MHz

1.05 V

65 oC

23.9

1, 2

Thermal

105 oC

30.0

1, 3

Maximum

34.1

1, 4

Typical

1000 MHz

400 MHz

1.05 V

65 oC

23.9

1, 2

Thermal

105 oC

30.0

1, 3

Maximum

34.1

1, 4

Typical

1000 MHz

500 MHz

0.95 V,

1.05 V

65 oC

16.2

1, 2, 5

Thermal

105 oC

21.8

1, 3, 5

Maximum

25.0

1, 4, 5

Notes:

1. These values specify the power consumption at nominal voltage and apply to all valid processor bus frequencies and

configurations. The values do not include power dissipation for I/O supplies.

2. Typical power is an average value measured at the nominal recommended core voltage (VDD_Coren) and 65°C junction

temperature (see Table 2)while running the Dhrystone 2.1 benchmark and achieving 2.3 Dhrystone MIPs/MHz with one core

at 100% efficiency and the second core at 65% efficiency.

3. Thermal power is the average power measured at nominal core voltage (VDD_Coren) and maximum operating junction

temperature (see Table 2) while running the Dhrystone 2.1 benchmark and achieving 2.3 Dhrystone MIPs/MHz on both

cores and a typical workload on platform interfaces.

4. Maximum power is the maximum power measured at nominal core voltage (VDD_Coren) and maximum operating junction

temperature (see Table 2) while running a test which includes an entirely L1-cache-resident, contrived sequence of

instructions which keep all the execution units maximally busy on both cores.

5. These power numbers are for Part Number MC8641Dxx1000NX only. VDD_Coren = 0.95 V and VDD_PLAT = 1.05 V.

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