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參數(shù)資料
| 型號(hào)： | MC68328 |
| 廠商： | MOTOROLA INC |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | DragonBall 32-Bit Microprocessor( DragonBall32位微處理器) |
| 中文描述： | 32-BIT, 16.67 MHz, MICROCONTROLLER, PQFP144 |
| 封裝： | TQFP-144 |
| 文件頁數(shù)： | 4/8頁 |
| 文件大小： | 27K |
| 代理商： | MC68328 |
4
DragonBall Power Management
Motorola
Power Consumption Test
Sleep Mode
In sleep mode the CPU and all peripherals but the RTC are in an inactive state. Sleep mode is entered
by disabling PLL, thus stopping the system clock. Only the external 32KHz clock still inputs to the
RTC module. Because 32KHz is a low-frequency signal, the RTC consumes less than 1 uA.
When disabling the PLL to enter sleep mode, please follow the PLL shut-down sequence specified in
the DragonBall user’s manual. Sleep mode is disabled automatically when there is an interrupt event.
Note that upon wake-up it takes 1 ms for the PLL to stabilize and provide a system clock
Power Consumption Test
Both the MC68328 and MC68EZ328 user’s manuals state that the maximum current consumption at
3.3V is 20 mA for normal mode and 20uA for sleep mode. The user should remember that “system up”
does not always mean “full running.” Burst or DOZE mode can be used. In burst/DOZE mode, current
consumption is substantially less than 20mA. Power tests with the MC68328 and MC68EZ328 show
that they both consume similar amounts of current in the same configuration. Refer to the following
sections for benchmark data.
Test Hardware Set-Up
Figure 3 shows the hardware set-up for this power measurement.
Figure 3.
Hardware Configuration for Power Consumption Test
Normal Mode Test
Figure 4 graphs the following test condition: the CPU is continuously running; the LCD controller is
enabled and initialized to 240x160 b/w; the RTC is enabled; and the ROM chip-select is configured for
1 wait state.
68EZ328
8-bit
ROM
AA1914
Power
Supply
V
CC
A
V
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| MC68331CPV16 | User’s Manual |
| MC68331MFV20 | User’s Manual |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MC68328P | 制造商:MOTOROLA 制造商全稱:Motorola, Inc 功能描述:Integrated Portable System Processor-DragonBall |
| MC68328UM | 制造商:MOTOROLA 制造商全稱:Motorola, Inc 功能描述:Integrated Portable System Processor-DragonBall |
| MC68330 | 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:Integrated CPU32 Processor |
| MC68330CFE16 | 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:Integrated CPU32 Processor |
| MC68330CFE8V | 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:Integrated CPU32 Processor |
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