参数资料
型号: MB90F457PMT
元件分类: 微控制器/微处理器
英文描述: 16-BIT, FLASH, 16 MHz, MICROCONTROLLER, PQFP48
封装: 0.50 MM PITCH, PLASTIC, LQFP-48
文件页数: 59/78页
文件大小: 680K
代理商: MB90F457PMT
MB90455 Series
62
(3) Power-on reset
(VCC
= 5.0 V ± 10%, VSS = AVSS = 0.0 V, TA = 40 °C to +105 °C)
Parameter
Symbol
Pin name
Conditions
Value
Unit
Remarks
Min
Max
Power supply rise time
tR
VCC
0.05
30
ms
Power supply shutdown
time
tOFF
VCC
1
ms
Repeated operation
VCC
VSS
3.0 V
tR
tOFF
2.7 V
0.2 V
Sudden change of power supply voltage may activate the power-on reset function. When
changing power supply voltages during operation, raise the power smoothly by suppressing
variation of voltages as shown below. When raising the power, do not use PLL clock. Howev-
er, if voltage drop is 1V/s or less, use of PLL clock is allowed during operation.
Limiting the slope of rising within
50 mV/ms is recommended.
RAM data hold period
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