MPC750ECSLASHD datasheet(8/44 Pages) NXP

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MPC750A RISC Microprocessor Hardware Speciﬁcations

Electrical and Thermal Characteristics

Table 4 provides the package thermal characteristics for the MPC750.

The MPC750 incorporates a thermal management assist unit (TAU) composed of a thermal sensor,

digital-to-analog converter, comparator, control logic, and dedicated special-purpose registers (SPRs). See

the MPC750 RISC Microprocessor User’s Manual for more information on the use of this feature.

Speciﬁcations for the thermal sensor portion of the TAU are found in Table 5.

L2 bus supply voltage

L2OVdd

2.5 to 3.465

Input voltage

Vin

GND to OVdd

Die-junction temperature

0 to 105

°C

-40 to 105

°C

Note: These are the recommended and tested operating conditions. Proper device operation outside of

these conditions is not guaranteed.

1. For extended temperature parts marked MPC750ARXnnnTH or MPC740ARXnnnTH only (where nnn is

the operating frequency from Table 8.

Table 4. Package Thermal Characteristics

Characteristic

Symbol

Value

Rating

CBGA package thermal resistance, junction-to-case thermal resistance (typical)

0.03

°C/W

CBGA package thermal resistance, die junction-to-lead thermal resistance (typical)

3.8

°C/W

Note: Refer to Section 1.8, “System Design Information,” for more details about thermal management.

Table 5. Thermal Sensor Specifications

At recommended operating conditions (See Table 3)

Num

Characteristic

Min

Max

Unit

Notes

Temperature range

127

°C

Comparator settling time

—

µs

Resolution

—

°C

Notes:

1. The temperature is the junction temperature of the die. The thermal assist unit’s raw output does not indicate an

absolute temperature, but it must be interpreted by software to derive the absolute junction temperature. For

information about the use and calibration of the TAU, see Motorola Application Note AN1800/D, “Programming

the Thermal Assist Unit in the MPC750 Microprocessor”.

2. The comparator settling time value must be converted into the number of CPU clocks that need to be written into

the THRM3 SPR.

3. Guaranteed by design and characterization.

Table 3. Recommended Operating Conditions (Continued)

Characteristic

Symbol

MPC750A Value

Unit

Notes

Freescale Semiconductor, Inc.

For More Information On This Product,

Go to: www.freescale.com

IVE

D B

Y F

INC

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