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参数资料
| 型号： | MB89P133APFM-201 |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | 8-BIT, OTPROM, 4.2 MHz, MICROCONTROLLER, PQFP48 |
| 封装： | PLASTIC, QFP-48 |
| 文件页数： | 27/54页 |
| 文件大小： | 537K |
| 代理商： | MB89P133APFM-201 |
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MB89130/130A Series
33
4.
AC Characteristics
(1) Reset Timing
(VCC
= +5.0 V ± 10%, AVSS = VSS = 0.0 V, TA = 40 °C to +85 °C)
* : tHCYL is the oscillation cycle (1/FCH) to input to the X0 pin.
(2) Power-on Reset
(AVSS
= VSS = 0.0 V, TA = 40 °C to +85 °C)
Note : Make sure that power supply rises within the oscillation stabilization time selected.
For example, when the main clock is operating at 3 MHz (FCH) and the oscillation stabilization time selecting
option has been set to 212/FCH, the oscillation stabilization time is 1.4 ms. Therefore, the maximum value of
power supply rising time is about 1.4 ms.
Rapid changes in power supply voltage may cause a power-on reset. 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
tZLZH
48 tHCYL*
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
tZLZH
0.2 VCC
0.8 VCC
RST
0.2 V
2.0 V
VCC
0.2 V
tR
tOFF
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