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MC68EC060 Datasheet(PDF) 9 Page - Freescale Semiconductor, Inc |
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MC68EC060 Datasheet(HTML) 9 Page - Freescale Semiconductor, Inc |
9 / 10 page 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 |
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