參數(shù)資料
型號(hào)： MB90549PF
廠商： FUJITSU LTD
元件分類： 微控制器/微處理器
英文描述： 16-BIT, MROM, 16 MHz, MICROCONTROLLER, PQFP100
封裝： PLASTIC, QFP-100
文件頁(yè)數(shù)： 30/64頁(yè)
文件大小： 1525K
代理商： MB90549PF
MB90590 Series
36
(2) Reset and Hardware Standby Input
(VCC
= 5.0 V±10%, VSS = AVSS = 0V, TA = 40 °C to +85 °C)
“tcp” represents one cycle time of the machine clock.
Any reset can not fully initialize the Flash Memory if it is performing the automatic algorithm.
(3) Power On Reset
(VCC
= 5.0 V±10%, VSS = AVSS = 0V, TA = 40 °C to +85)
Parameter
Symbol
Pin
Rated Value
Units
Remarks
Min.
Max.
Reset input time
tRSTL
RST
16 tCP
—ns
Hardware standby input time
tHSTL
HST
16 tCP
—ns
Parameter
Symbol
Pin
Test Condition
Rated Value
Units
Remarks
Min.
Max.
Power on rise time
tR
VCC
—
0.05
30
ms
Power off time
tOFF
VCC
50
—
ms
Due to repetitive operation
0.6 VCC
RST
HST
tRSTL, tHSTL
0.6 VCC
tR
3.5 V
0.2 V
VCC
0.2 V
tOFF
If you change the power supply voltage too rapidly, a power on reset may occur.
We recommend that you startup 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 mV/sec, you
can operate while using the PLL clock.
VCC
VSS
3V
Holds RAM data
We recommend a rise of
50 mV/ms maximum.
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