參數(shù)資料
型號(hào)： MB89143AP
元件分類： 微控制器/微處理器
英文描述： 8-BIT, MROM, 8 MHz, MICROCONTROLLER, PDIP64
封裝： SHRINK, PLASTIC, DIP-64
文件頁(yè)數(shù)： 3/38頁(yè)
文件大?。?/td> 550K
代理商： MB89143AP
11
MB89143A/144A
s HANDLING DEVICES
1. Preventing Latchup
Latchup may occur on CMOS ICs if voltage higher than VCC or lower than VSS is applied to input and output pins
other than medium- to high-voltage pins or if higher than the voltage which shows on “1. Absolute Maximum
Ratings” in section “s Electrical Characteristics” is applied between VCC and VSS. (However, up to 7.0 V can be
applied to P31/INT1 pin, regardless of VCC.)
When latchup occurs, power supply current increases rapidly and might thermally damage elements. When
using, take great care not to exceed the absolute maximum ratings.
Also, take care to prevent the analog power supply (AVR) and analog input from exceeding the digital power
supply (VCC) when the analog system power supply is turned on and off.
2. Treatment of Unused Input Pins
Leaving unused input pins open could cause malfunctions. They should be connected to a pull-up or pull-down
resistor.
3. Treatment of Power Supply Pins on Microcontrollers with A/D and D/A Converters
Connect to be AVSS = AVR = VSS even if the A/D and D/A converters are not in use.
4. Treatment of N.C. Pins
Be sure to leave (internally connected) N.C. pins open.
5. Power Supply Voltage Fluctuations
Although VCC power supply voltage is assured to operate within the rated range, a rapid uctuation of the voltage
could cause malfunctions, even if it occurs within the rated range. Stabilizing voltage supplied to the IC is
therefore important. As stabilization guidelines, it is recommended to control power so that VCC ripple uctuations
(P-P value) will be less than 10% of the standard VCC value at the commercial frequency(50 to 60 Hz) and the
transient uctuation rate will be less than 0.1 V/ms at the time of a momentary uctuation such as when power
is switched.
6. Precautions when Using an External Clock
Even when an external clock is used, oscillation stabilization time is required for power-on reset and wake-up
from stop mode.
相關(guān)PDF資料
PDF描述
MB89154PFM 8-BIT, MROM, MICROCONTROLLER, PQFP80
MB89155APF 8-BIT, MROM, MICROCONTROLLER, PQFP80
MB89151APFM 8-BIT, MROM, MICROCONTROLLER, PQFP80
MB89151PFV 8-BIT, MROM, MICROCONTROLLER, PQFP80
MB89155PF 8-BIT, MROM, MICROCONTROLLER, PQFP80
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MB89143AP-SH 制造商:FUJITSU 制造商全稱:Fujitsu Component Limited. 功能描述:8-bit Proprietary Microcontroller CMOS
MB89144 制造商:FUJITSU 制造商全稱:Fujitsu Component Limited. 功能描述:8-bit Proprietary Microcontroller
MB89144A 制造商:FUJITSU 制造商全稱:Fujitsu Component Limited. 功能描述:8-bit Proprietary Microcontroller CMOS
MB89144AP 制造商:FUJITSU 制造商全稱:Fujitsu Component Limited. 功能描述:8-bit Proprietary Microcontroller
MB89144AP-SH 制造商:FUJITSU 制造商全稱:Fujitsu Component Limited. 功能描述:8-bit Proprietary Microcontroller CMOS
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