參數(shù)資料
型號(hào)： MB90242A
廠商： FUJITSU LTD
元件分類： 微控制器/微處理器
英文描述： 16-Bit Proprietary Microcontroller(16位專用微控制器)
中文描述： 16-BIT, 32 MHz, MICROCONTROLLER, PQFP80
封裝： PLASTIC, LQFP-80
文件頁(yè)數(shù)： 21/57頁(yè)
文件大小： 754K
代理商： MB90242A
21
MB90242A Series
(4) Power-on Reset
(V
CC
= 5.0 V
±
10%, V
SS
= 0.0 V, T
A
= –30
°
C to +70
°
C)
Value
Unit
Min.
Max.
Note: The above standards are the values needed in order to activate a power-on reset.
Parameter
Symbol
Pin name
Condition
Remarks
Power supply rising time
t
R
V
CC
—
—
30
ms
V
CC
must be lower
than 0.2 V before
power is applied.
Power supply cut-off time
t
OFF
V
CC
—
1
—
ms
V
CC
5.0 V
V
CC
2.0 V
V
SS
Holding RAM data
It is recommended that the rate of
increase in the voltage be kept to
no more that 50 mV/ms.
If power supply voltage needs to be changed in the course of operation, a smooth voltage rise is
recommended by suppressing the voltage variation as shown below.
t
R
+2.97 V
+0.2 V
t
OFF
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