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參數(shù)資料
| 型號： | MB90F548GPFF |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 16-BIT, FLASH, 16 MHz, MICROCONTROLLER, PQFP100 |
| 封裝： | PLASTIC, LQFP-100 |
| 文件頁數(shù)： | 40/60頁 |
| 文件大?。?/td> | 744K |
| 代理商： | MB90F548GPFF |
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MB90540/540G/545/545G Series
45
(4) Power On Reset
(MB90F543/F549 : VCC
= 5.0 V ± 10%, VSS = AVSS = 0.0 V, TA = 40 °C to +85 °C)
(Other than MB90F543/F549 : VCC
= 5.0 V ± 10%, VSS = AVSS = 0.0 V, TA = 40 °C to +105 °C)
Note
VCC must be kept lower than 0.2 V before power-on.
The above values are used for creating a power-on reset.
Some registers in the device are initialized only upon a power-on reset. To initialize these register, turn on
the power supply using the above values.
Parameter
Symbol
Pin
Condition
Value
Units
Remarks
Min.
Max.
Power on rise time
tR
VCC
0.05
30
ms
Power off time
tOFF
VCC
50
ms
Due to repetitive operation
VCC
VSS
3.0 V
tR
tOFF
2.7 V
0.2 V
RAM data being held
It is recommended to keep the
rising speed of the supply voltage
at 50 mV/ms or slower.
Sudden changes in the power supply voltage may cause a power-on reset.
To change the power supply voltage while the device is in operation, it is recommended to
raise the voltage smoothly to suppress fluctuations as shown below.
In this case, change the supply voltage with the PLL clock not used. If the voltage drop is
1 V or fewer per second, however, you can use the PLL clock.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MB90F543GSPFF | 16-BIT, FLASH, 16 MHz, MICROCONTROLLER, PQFP100 |
| MB90F546GPFF | 16-BIT, FLASH, 16 MHz, MICROCONTROLLER, PQFP100 |
| MB90F549GSPFF | 16-BIT, FLASH, 16 MHz, MICROCONTROLLER, PQFP100 |
| MB90F548GPFF | 16-BIT, FLASH, 16 MHz, MICROCONTROLLER, PQFP100 |
| MB90F543PFF | 16-BIT, FLASH, 16 MHz, MICROCONTROLLER, PQFP100 |
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