参数资料
型号: MB89475PFV
元件分类: 微控制器/微处理器
英文描述: 8-BIT, 12.5 MHz, MICROCONTROLLER, PQFP48
封装: PLASTIC, QFP-48
文件页数: 21/46页
文件大小: 999K
代理商: MB89475PFV
28
MB89470 Series
4. AC Characteristics
(1) Reset Timing
(VCC = 5.0V, AVSS = VSS = 0.0 V, TA = –40
°C to +85°C)
Note: tHCYL is the oscillation cycle (1/FC) to input to the X0 pin.
The MCU operation is not guaranteed when the "L" pulse width is shorter than tZLZH.
(2) Power-on Reset
(AVSS = VSS = 0.0 V, TA = –40
°C to +85°C)
Note: Make sure that power supply rises within the selected oscillation stabilization time.
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 supply cut-off time
tOFF
1
ms
Due to repeated operations
tZLZH
0.2 VCC
RST
0.2 V
3.5 V
0.2 V
tR
VCC
tOFF
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