MPC7441 datasheet(12/56 Pages) NXP

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MPC7447A RISC Microprocessor Hardware Specifications, Rev. 5

Freescale Semiconductor

Electrical and Thermal Characteristics

Table 6 provides the DC electrical characteristics for the MPC7447A.

Junction-to-ambient thermal resistance, 200 ft/min airflow, four-layer (2s2p) board

RθJMA

°C/W

2, 4

Junction-to-board thermal resistance

RθJB

°C/W

Junction-to-case thermal resistance

RθJC

< 0.1

°C/W

Notes:

1. Refer to Section 9.8, “Thermal Management Information,” for details about thermal management.

2. Junction temperature is a function of on-chip power dissipation, package thermal resistance, mounting site (board)

temperature, ambient temperature, airflow, power dissipation of other components on the board, and board thermal resistance.

3. Per SEMI G38-87 and JEDEC JESD51-2 with the single-layer board horizontal.

4. Per JEDEC JESD51-6 with the board horizontal.

5. Thermal resistance between the die and the printed-circuit board per JEDEC JESD51-8. Board temperature is measured on

the top surface of the board near the package.

6. This is the thermal resistance between the die and the case top surface as measured by the cold plate method (MIL SPEC-883

Method 1012.1) with the calculated case temperature. The actual value of RθJC for the part is less than 0.1°C/W.

Table 6. DC Electrical Specifications

At recommended operating conditions. See Table 4.

Characteristic

Nominal

Bus

Voltage 1

Symbol

Min

Max

Unit

Notes

Input high voltage

(all inputs)

1.8

VIH

OVDD × 0.65

OVDD + 0.3

2.5

1.7

OVDD + 0.3

Input low voltage

(all inputs)

1.8

VIL

–0.3

OVDD × 0.35

2, 6

2.5

–0.3

0.7

Input leakage current,

Vin = OVDD

Vin = GND

—Iin

—

– 30

µA

2, 3

High-impedance (off-state) leakage current,

Vin = OVDD

Vin = GND

—ITSI

—

– 30

µA

2, 3, 4

Output high voltage @ IOH = –5 mA

1.8

VOH

OVDD – 0.45

—

2.5

1.8

—

Output low voltage @ IOL = 5 mA

1.8

VOL

—0.45

2.5

—

0.6

Table 5. Package Thermal Characteristics1 (continued)

Characteristic

Symbol

Value

Unit

Notes

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