MPC7455 datasheet(14/64 Pages) FREESCALE

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MPC7455 RISC Microprocessor Hardware Specifications, Rev. 4.1

Freescale Semiconductor

Electrical and Thermal Characteristics

Table 7 provides the power consumption for the MPC7455.

Input leakage current,

Vin = GVDD/OVDD + 0.3 V

—Iin

—30

µA

2, 3

High impedance (off-state) leakage

current, Vin = GVDD/OVDD + 0.3 V

—ITSI

—

µA

2, 3, 5

Output high voltage, IOH = –5 mA

1.5

VOH

GVDD – 0.45

—

1.8

VOH

OVDD/GVDD – 0.45

—

2.5

VOH

1.7

—

Output low voltage, IOL = 5 mA

1.5

VOL

—0.45

1.8

VOL

—0.45

2.5

VOL

—0.7

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. Capacitance is periodically sampled rather than 100% tested.

5. 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%).

6. Applicable to L3 bus interface only.

Table 7. Power Consumption for MPC7455

Processor (CPU) Frequency

Unit

Notes

733 MHz

867 MHz

933 MHz

1 GHz

Full-Power Mode

Typical

11.5

12.9

13.6

15.0

1, 3

Maximum

17.0

19.0

20.0

22.0

1, 2

Doze Mode

Typical

————

Nap Mode

Typical

8.0

1, 3

Sleep Mode

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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