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參數(shù)資料
| 型號： | MB89PV820CF |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 8-BIT, 5 MHz, MICROCONTROLLER, PQFP80 |
| 封裝： | CERAMIC, MQFP-80 |
| 文件頁數(shù)： | 21/37頁 |
| 文件大?。?/td> | 402K |
| 代理商： | MB89PV820CF |
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MB89820 Series
28
4. AC Characteristics
(1) Reset Timing
(VCC = +5.0 V
±10%, VSS = 0.0 V, TA = –40°C to +85°C)
Notes :
tXCYL is the main clock oscillator period.
If the reset pulse applied to the external reset pin (RST) does not meet the specifications, it may cause
malfunctions. Use caution so that the reset pulse less than the specifications will not be fed to the external
reset pin (RST) .
(2) Power-on Reset
(VSS = 0.0 V, TA = –40
°C to +85°C)
Note: Make sure that power supply rises within the selected oscillation stabilization time.
If power supply voltage needs to be varied in the course of operation, a smooth voltage rise is recommended.
Parameter
Symbol
Condition
Value
Unit
Remarks
Min
Max
RST “L” pulse width
t ZLZH
—
48 tXCYL
—ns
Parameter
Symbol
Condition
Value
Unit
Remarks
Min
Max
Power supply rising time
tR
—
—50
ms
Power-on reset
function only
Power supply cut-off time
tOFF
1—
ms
Due to repeated
operations
0.2 VCC
RST
tZLZH
2.0 V
0.2 V
VCC
tR
tOFF
0.2 V
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