XPC850DECZT66B datasheet(8/68 Pages) MOTOROLA

Part #	XPC850DECZT66B

Description	Communications Controller Hardware Specifications

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Manufacturer	MOTOROLA [Motorola, Inc]

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8

MPC850 (Rev. A/B/C) Hardware Speciﬁcations

MOTOROLA

Part IV Thermal Characteristics

Table 3 shows the thermal characteristics for the MPC850.

Table 4 provides power dissipation information.

Table 5 provides the DC electrical characteristics for the MPC850.

Table 3. Thermal Characteristics

Characteristic

Symbol

Value

Unit

Thermal resistance for BGA 1

1

For more information on the design of thermal vias on multilayer boards and BGA layout considerations in

general, refer to AN-1231/D, Plastic Ball Grid Array Application Note available from your local Motorola sales

ofﬁce.

θ

JA

40 2

2 Assumes natural convection and a single layer board (no thermal vias).

°C/W

θ

JA

31 3

3

Assumes natural convection, a multilayer board with thermal vias4, 1 watt MPC850 dissipation, and a board

temperature rise of 20

°C above ambient.

°C/W

θ

JA

24 4

4 Assumes natural convection, a multilayer board with thermal vias4, 1 watt MPC850 dissipation, and a board

temperature rise of 13

°C above ambient.

TJ = TA + (PD

•θJA)

PD = (VDD

• IDD) + PI/O

where:

PI/O is the power dissipation on pins

°C/W

Thermal Resistance for BGA (junction-to-case)

θ

JC

8

°C/W

Table 4. Power Dissipation (PD)

Characteristic

Frequency (MHz)

Typical 1

1

Typical power dissipation is measured at 3.3V

Maximum 2

2

Maximum power dissipation is measured at 3.65 V

Unit

Power Dissipation

All Revisions

(1:1) Mode

33

TBD

515

mW

40

TBD

590

mW

50

TBD

725

mW

Table 5. DC Electrical Speciﬁcations

Characteristic

Symbol

Min

Max

Unit

Operating voltage at 40 MHz or less

VDDH, VDDL,

KAPWR, VDDSYN

3.0

3.6

V

Operating voltage at 40 MHz or higher

VDDH, VDDL,

KAPWR, VDDSYN

3.135

3.465

V

Input high voltage (address bus, data bus, EXTAL, EXTCLK,

and all bus control/status signals)

VIH

2.0

3.6

V

Input high voltage (all general purpose I/O and peripheral pins)

VIH

2.0

5.5

V

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