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参数资料
| 型号： | MB89123APFM |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | 8-BIT, MROM, 4.2 MHz, MICROCONTROLLER, PQFP48 |
| 封装： | PLASTIC, QFP-48 |
| 文件页数： | 2/42页 |
| 文件大小： | 388K |
| 代理商： | MB89123APFM |
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MB89120/120A Series
10
s
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- and high- voltage pins, or if higher than the voltage which shows on “1. Absolute Maximum
Ratings” in “s ELECTRICAL CHARACTERISTICS” is applied between VCC and VSS.
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 (AVCC and 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 pull-up or pull-down
resistor.
3.
Treatment of N.C. Pins
Be sure to leave N.C. (internally connected) pins open.
4.
Power Supply Voltage Fluctuations
Although operation is assured within the rated range of VCC power supply voltage, a rapid fluctuation 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 fluctu-
ations (P-P value) will be less than 10
% of the standard VCC value at the commercial frequency (50 to 60 Hz)
and the transient fluctuation rate will be less than 0.1 V/ms at the time of a momentary fluctuation such as when
power is switched.
5.
Precautions when Using an External Clock
When an external clock is used, oscillation stabilization time is required even for power-on reset (optional) and
release from stop mode.
6.
Turning on the supply voltage (only for the MB89P135A)
When the power supply is turned on if MB89P135A is used, power on sharply up to 2.0 V within 13 clock cycles
after starting of oscillation.
Further, various option may be set, if power supply up to keep this condition.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MB89125 | 制造商:FUJITSU 制造商全称:Fujitsu Component Limited. 功能描述:8-bit Proprietary Microcontroller |
| MB89125A | 制造商:FUJITSU 制造商全称:Fujitsu Component Limited. 功能描述:8-bit Proprietary Microcontroller |
| MB89125APFM | 制造商:FUJITSU 制造商全称:Fujitsu Component Limited. 功能描述:8-bit Proprietary Microcontroller |
| MB89130 | 制造商:FUJITSU 制造商全称:Fujitsu Component Limited. 功能描述:8-bit Proprietary Microcontroller |
| MB89130_01 | 制造商:FUJITSU 制造商全称:Fujitsu Component Limited. 功能描述:8-bit Proprietary Microcontroller |
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