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

4

Freescale Semiconductor

General Parameters

5.2.1 Clock AC Specifications

Table 8 provides the clock AC timing specifications for the MPC7448 part numbers discussed here.

NOTE

The core frequency information in this table applies when the device

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

frequency specifications at derated core voltage conditions, see Section 5.3,

“Voltage and Frequency Derating.”

Table 7. Power Consumption for MPC7448 at Maximum Rated Frequency

Die

Junction

C)

Maximum Processor Core Frequency

(Speed Grade, MHz)

Unit

Notes

1000N

1400N

1700L

Full-Power Mode

Typical

65

9.5

8.4

11.0

21.0

W

1, 2

Thermal

105

12.0

10.3

13.7

25.6

W

1, 5

Maximum

105

13.9

12.0

15.9

29.8

W

1, 3

Nap Mode

Typical

105

6.5

6.5

8.3

13.0

W

1, 6

Sleep Mode

Typical

105

6.3

6.3

8.0

12.5

W

1, 6

Deep Sleep Mode (PLL Disabled)

Typical

105

6.0

6.0

7.7

12.0

W

1, 6

Notes:

65

°C while running the Dhrystone 2.1 benchmark and achieving 2.3 Dhrystone MIPs/MHz. This parameter is not 100%

tested but periodically sampled.

Table 4) while running an entirely cache-resident, contrived sequence of instructions to keep all the execution units

maximally busy.

4. Doze mode is not a user-definable state; it is an intermediate state between full-power and either nap or sleep mode. As a

result, power consumption for this mode is not tested.

105

°C while running the Dhrystone 2.1 benchmark and achieving 2.3 Dhrystone MIPs/MHz. This parameter is not 100%

tested but periodically sampled.

mode described. This parameter is not 100% tested but is periodically sampled.

7. Power consumption for the 1267 MHz device is intentionally constrained via testing and sorting to assure low power

consumption for this device.