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參數(shù)資料
| 型號： | MB89P485LP-SH-101 |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 8-BIT, OTPROM, 12.5 MHz, MICROCONTROLLER, PDIP64 |
| 封裝： | SHRINK, PLASTIC, DIP-64 |
| 文件頁數(shù)： | 26/51頁 |
| 文件大小： | 1061K |
| 代理商： | MB89P485LP-SH-101 |
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32
MB89480/480L Series
4. AC Characteristics
(1) Reset Timing
VCC = 5.0 V for MB89PV480, MB89P485, MB89485
VCC = 3.0 V for MB89P485L, MB89485L
(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
tR
VCC
tOFF
Vth
Vth = 3.5 V for MB89PV480, MB89P485 and MB89485
Vth = 1.8 V for MB89P485L and MB89485L
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