MPC7448 Hardware Specifications Addendum for the MC7448Txxnnnnmx Series, Rev. 2

Freescale Semiconductor

3

General Parameters

Table 7 provides the power consumption for the MPC7448 part numbers described by this document; see

RISC Microprocessor Hardware Specifications presents guidelines on the use of these parameters for

system design. For information on power consumption when dynamic frequency switching is enabled, see

The power consumptions provided in Table 7 represent the power consumption of each speed grade when

operated at the rated maximum core frequency (see Table 8). Freescale sorts devices by power as well as

by core frequency, and power limits for each speed grade are independent of each other. Each device is

tested at its maximum core frequency only. (Note that Deep Sleep Mode power consumption is

independent of clock frequency.) Operating a device at a frequency lower than its rated maximum is fully

supported provided the clock frequencies are within the specifications given in Table 8, and a device

operated below its rated maximum will have lower power consumption. However, inferences should not

be made about a device’s power consumption based on the power specifications of another (lower) speed

grade. For example, a 1400 MHz device operated at 1267 MHz will not exhibit the same power

consumption as a 1267 MHz device operated at 1267 MHz.

NOTE

The power consumption information in this table applies when the device

operates at the nominal core voltage indicated in Table 4. For power

consumption at derated core voltage conditions, see Section 5.3, “Voltage

and Frequency Derating.”

Characteristic

Symbol

Recommended Value

Unit

Notes

1000N MHz

Revision

Level C

Revision

Level D

1700L MHz

Core supply voltage

1.0 V

± 50 mV

1.1 V

± 50 mV

1.05 V

± 50 mV

1.15 V

± 50 mV

1.3 V

+20/-50 mV

V

PLL supply voltage

1.0 V

± 50 mV

1.1 V

± 50 mV

1.05 V

± 50 mV

1.15 V

± 50 mV

1.3 V

+20/-50 mV

V2

Die-junction temperature

–40to105

–40to105

–40to105

–40to105

–40to105

•C

C

Notes:

1. These are the recommended and tested operating conditions. Some speed grades in addition support voltage derating; see

3.