MPC7457 datasheet(14/68 Pages) FREESCALE

14 / 68 page

MPC7457 RISC Microprocessor Hardware Specifications, Rev. 5

Freescale Semiconductor

Electrical and Thermal Characteristics

Table 7 provides the power consumption for the MPC7457.

Output high voltage, IOH = –5 mA

1.5

VOH

OVDD/GVDD – 0.45

—

1.8

OVDD/GVDD – 0.45

—

2.5

1.8

—

Output low voltage, IOL = 5 mA

1.5

VOL

—

0.45

1.8

—

0.45

2.5

—

0.6

Capacitance,

Vin = 0 V, f = 1 MHz

L3 interface

—

Cin

—

9.5

All other inputs

—

8.0

Notes:

1. Nominal voltages; see Table 4 for recommended operating conditions.

2. For processor bus signals, the reference is OVDD while GVDD is the reference for the L3 bus signals.

3. Excludes test signals and IEEE 1149.1 boundary scan (JTAG) signals.

4. The leakage is measured for nominal OVDD/GVDD and VDD, or both OVDD/GVDD and VDD must vary in the same direction

(for example, both OVDD and VDD vary by either +5% or –5%).

5. Capacitance is periodically sampled rather than 100% tested.

6. Applicable to L3 bus interface only.

Table 7. Power Consumption for MPC7457

Processor (CPU) Frequency

Unit

Notes

867 MHz

1000 MHz

1200 MHz

1267 MHz

Full-Power Mode

Typical

14.8

15.8

17.5

18.3

1, 2

Maximum

21.0

22.0

24.2

25.6

1, 3

Nap Mode

Typical

5.2

1, 2

Sleep Mode

Typical

5.1

1, 2

Table 6. DC Electrical Specifications (continued)

At recommended operating conditions. See Table 4.

Characteristic

Nominal

Bus

Voltage 1

Symbol

Min

Max

Unit

Notes

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