
MB90360 Series
47
(3) Power-on Reset
(T
A
=
40
°
C to
+
125
°
C, V
CC
=
5.0 V
±
10
%
, f
CP
≤
24 MHz, V
SS
=
AV
SS
=
0 V)
Value
Unit
Min
Max
Parameter
Symbol
Pin
Condition
Remarks
Power on rise time
t
R
V
CC
0.05
30
ms
Power off time
t
OFF
V
CC
1
ms
Due to repetitive operation
V
CC
V
CC
V
SS
3 V
t
R
t
OFF
2.7 V
0.2 V
0.2 V
0.2 V
Holds RAM data
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.
We recommend a rise of
50 mV/ms maximum.