參數(shù)資料
型號： MB90F334A
廠商： Fujitsu Limited
英文描述： 16-bit Proprietary Microcontroller
中文描述： 16位微控制器專有
文件頁數(shù)： 98/116頁
文件大小： 632K
代理商： MB90F334A
MB90330 Series
98
(4) Power-on reset
(V
CC
=
AV
CC
=
3.3 V
±
0.3 V, V
SS
=
AV
SS
=
0.0 V, T
A
=
40
°
C to
+
85
°
C)
Value
Notes :
V
CC
must be lower than 0.2 V before the power supply is turned on.
The above standard is a value for performing a power-on reset.
In the device, there are internal registers which is initialized only by a power-on reset.
When the initialization of these items is expected, turn on the power supply according to the standards.
Parameter
Symbol Pin name
Condi-
tions
Unit
Remarks
Min
Max
Power supply rising time
t
R
V
CC
30
ms
Power supply shutdown
time
t
OFF
V
CC
1
ms
For repeated operation
V
CC
V
CC
3.0 V
V
SS
t
R
0.2 V
0.2 V
2.7 V
t
OFF
0.2 V
Sudden change of power supply voltage may activate the power-on reset function.
When changing the power supply voltage during operation as illustrated below, voltage fluctuation
should be minimized so that the voltage rises as smoothly as possible. When raising the power, do not
use PLL clock. However, if voltage drop is 1 V/s or less, use of PLL clock is allowed during operation.
RAM data hold
The rising edge should be 50 mV/ms
or less.
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