參數(shù)資料
型號： MB90P641APFV
元件分類： 微控制器/微處理器
英文描述： 16-BIT, OTPROM, 17 MHz, MICROCONTROLLER, PQFP100
封裝： PLASTIC, LQFP-100
文件頁數(shù)： 58/94頁
文件大?。?/td> 1542K
代理商： MB90P641APFV
61
MB90640A Series
(5)
Power on Supply Specifications (Power-on Reset)
(VCC = 4.5 V to 5.5 V, VSS = 0.0 V, TA = –40°C to +85°C)
* : VCC should be lower than 0.2 V before power supply rise.
Notes: The above values are the values required for a power-on reset.
When HST = “L”, this standard must be followed to turn on power supply for power-on reset whether or
not necessary.
The device has built-in registers which are initialized only by power-on reset. For possible initialization of
these registers, turn on power supply according to this standard.
Parameter
Symbol
Pin name
Conditions
Value
Unit
Remarks
Min.
Max.
Power supply rise time
tR
VCC
—
0.05
30
ms
Power supply cut-off time
tOFF
VCC
—
50
—
ms
For repetition
of the operation
2.7 V
tR
0.2 V
VCC
tOFF
5.0 V
3.5 V
VSS
VCC
The gradient should be no
more than 50 mV/ms.
Holding RAM data
Abrupt changes in the power supply voltage may cause a power-on reset.
When changing the power supply voltage during operation, the change should be
as smooth as possible, as shown in the following figure.
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