參數(shù)資料
型號(hào)： MB90439
廠商： Fujitsu Limited
英文描述： Octal D-Type Edge-Triggered Flip-Flops with 3-State Outputs 20-LCCC -55 to 125
中文描述： 16位微控制器專有
文件頁(yè)數(shù)： 38/58頁(yè)
文件大?。?/td> 629K
代理商： MB90439
MB90435 Series
38
(4) Power On Reset
(MB90F438L (S) /437L (S) /438L (S) : V
CC
=
3.5 V to 5.5 V, V
SS
=
AV
SS
=
0.0 V, T
A
=
40
°
C to
+
105
°
C)
(MB90F439 (S) /439 (S) /V540G : V
CC
=
5.0 V
±
10
%
, V
SS
=
AV
SS
=
0.0 V, T
A
=
40
°
C to
+
105
°
C)
* : V
CC
must be kept lower than 0.2 V before power-on.
Notes :
The above values are used for creating a power-on reset.
Some registers in the device are initialized only upon a power-on reset. To initialize these register, turn on
the power supply using the above values.
Parameter
Symbol
Pin
name
Condition
Value
Units
Remarks
Min
Max
Power on rise time
t
R
V
CC
0.05
30
ms
*
Power off time
t
OFF
V
CC
50
ms
Due to repetitive operation
V
CC
V
CC
3.0 V
V
SS
t
R
t
OFF
2.7 V
0.2 V
0.2 V
0.2 V
RAM data being held
It is recommended to keep the
rising speed of the supply voltage
at 50 mV/ms or slower.
Sudden changes in the power supply voltage may cause a power-on reset.
To change the power supply voltage while the device is in operation, it is recommended to
raise the voltage smoothly to suppress fluctuations as shown below.
In this case, change the supply voltage with the PLL clock not used. If the voltage drop is
1 V or fewer per second, however, you can use the PLL clock.
相關(guān)PDF資料
PDF描述
MB90439SPF 16-bit Proprietary Microcontroller
MB90457 16-bit Proprietary Microcontroller
MB90455PMT 16-bit Proprietary Microcontroller
MB90455S 16-bit Proprietary Microcontroller
MB90455SPMT 16-bit Proprietary Microcontroller
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MB90439PF 制造商:FUJITSU 制造商全稱:Fujitsu Component Limited. 功能描述:16-bit Proprietary Microcontroller
MB90439PFV 制造商:FUJITSU 制造商全稱:Fujitsu Component Limited. 功能描述:16-bit Proprietary Microcontroller
MB90439PMC 制造商:FUJITSU 制造商全稱:Fujitsu Component Limited. 功能描述:16-bit Proprietary Microcontroller
MB90439S 制造商:FUJITSU 制造商全稱:Fujitsu Component Limited. 功能描述:16-bit Proprietary Microcontroller
MB90439SPF 制造商:FUJITSU 制造商全稱:Fujitsu Component Limited. 功能描述:16-bit Proprietary Microcontroller
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