MOTOROLA

MC68060 PRODUCT INFORMATION

9

POWER MANAGEMENT

The MC68060 is very power efficient due to the static logic and power management designed into the basic

architecture. Each stage of the integer unit pipelines and the FPU pipeline draws power only when an

instruction is executing, and the cache arrays draw power only when an access is made. The FPU, secondary

integer execution pipeline, branch cache, and instruction and data caches can be disabled to reduce overall

power usage. The 3.3-V power supply reduces current consumption by 40–60% over that of microprocessors

using a 5-V power supply.

The MC68060 has additional methods for dynamically controlling power consumption during operation.

Running a special LPSTOP instruction shuts down the active circuits in the processor, halting instruction

execution. Power consumption in this standby mode is greatly reduced. Processing can be resumed by

resetting the processor or by generating an interrupt. The frequency of operation can be lowered to reduce

current consumption while the device is in LPSTOP mode.

PHYSICAL

The MC68060 is available in ceramic PGA and CQFP packaging configurations. All parts operate from a

3.3 V 5% power supply but directly interface to 3.3 V or 5 V peripherals and logic. The following table identifies

the operating frequencies available for the various M68060 microprocessors.

The documents listed in the following table contain detailed information on the MC68060. These documents

may be obtained from the Literature Distribution Centers at the addresses listed on the back page.

Processor

40 MHz

50 MHz

66 MHz

MC68060

X

X

MC68LC060

X

X

MC68EC060

X

X

X

Document Title

Order Number

Contents

M68060 User's Manual

M68060UM/AD

Detailed information for design

M68000 Family Programmer's Reference Manual

M68000PM/AD

M68000 Family Instruction Set

The 68K Source

BR729/D

Independent vendor listing supporting

software and development tools

3.3 Volt Logic and Interface Circuits

BR1407/D

Low voltage interface components

QFP

PACKAGING

IS

NOT

AVAILABLE

Freescale Semiconductor, Inc.

For More Information On This Product,

Go to: www.freescale.com