參數(shù)資料
型號(hào)： MB89P689PF
元件分類(lèi)： 微控制器/微處理器
英文描述： 8-BIT, OTPROM, 8 MHz, MICROCONTROLLER, PQFP100
封裝： PLASTIC, QFP-100
文件頁(yè)數(shù)： 20/43頁(yè)
文件大小： 697K
代理商： MB89P689PF
27
MB89680 Series
4. AC Characteristics
(1) Reset Timing
(VCC = 5.0 V
±10%, AVSS = VSS = 0.0 V, TA = –40°C to +85°C)
* : tXCYL is the oscillation cycle input to the X0.
(2) Specifications for 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 selected.
For example, when the main clock is operating at FCH = 8 MHz and the oscillation stabilization time is 212/FCH,
the oscillation stabilization time is 0.5 ms. Therefore, the maximum value of power supply rising time is about
0.5 ms.
When increasing the supply voltage during operation, voltage variation should be within twice the intended
increment so that the voltage rises as smoothly as possible.
Parameter
Symbol
Condition
Value
Unit
Remarks
Min.
Max.
RST “L” pulse width
tZLZH
—
48 tXCYL*—
ns
RST “H” pulse width
tZHZL
24 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
0.8 VCC
RST
tZLZH
tZHZL
0.2 V
4.5 V
0.2 V
tR
VCC
tOFF
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