参数资料
型号: MB90P634APF
元件分类: 微控制器/微处理器
英文描述: 16-BIT, OTPROM, 16 MHz, MICROCONTROLLER, PQFP100
封装: PLASTIC, QFP-100
文件页数: 77/107页
文件大小: 1599K
代理商: MB90P634APF
71
MB90630A Series
(4) Power-on Reset
(VCC = +2.7 V to +5.5 V, VSS = 0.0 V, TA = –40
°C to +85°C)
Note: The above values are the values required for a power-on reset.
Parameter
Symbol
Pin name
Condition
Value
Unit
Remarks
Min.
Max.
Power supply rising time
tR
VCC
—30
ms
Power supply cut-off time
tOFF
VCC
1—
ms
Holding RAM data
2.25 V
t R
0.2 V
V CC
5.0 V
2.7 V
V SS
V CC
The gradient should be no
more than 50 mV/ms.
Abrupt changes in the power supply voltage may cause a power-on reset.
When changeing the power supply voltage during operation, suppress variations in the voltage and
ensure that the voltage rises smoothly, as shown in the following figure. Also, do not use the PLL
clock when varying the voltage. However, the supply voltage can be changed when using the PLL
clock if the voltage drops by less than 1 mV/s.
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