
MB90360E Series
47
(3) Power-on Reset
(TA
= 40 °C to +125 °C, VCC = 5.0 V ± 10%, fCP ≤ 24 MHz, VSS = AVSS = 0 V)
Note : If you change the power supply voltage too rapidly, a power-on reset may occur. We recommend that you
start up smoothly by restraining voltages when changing the power supply voltage during operation, as
shown in the figure below. Perform while not using the PLL clock. However, if voltage drops are within
1 V/s, you can operate while using the PLL clock.
Parameter
Symbol
Pin
Condition
Value
Unit
Remarks
Min
Max
Power on rise time
tR
VCC
0.05
30
ms
Power off time
tOFF
VCC
1
ms
Due to repetitive operation
VCC
tR
tOFF
2.7 V
0.2 V
VCC
VSS
3 V
Holds RAM data
We recommend a rise of
50 mV/ms maximum.