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型號(hào)：	MB90V560
廠商：	Fujitsu Limited
英文描述：	16-BIT MICROCONTROLLER
中文描述：	16位微控制器
文件頁(yè)數(shù)：	44/581頁(yè)
文件大?。?/td>	3144K
代理商：	MB90V560

CHAPTER 1 OVERVIEW

MB90560 series

Notes on Handling Devices

When handling devices, pay special attention to the following eight items or

Restriction of maximum rated voltage (latchup prevention)

Stabilization of supply voltage

Treatment of unused input pins

Treatment of A/D converter power pin

Notes on external clock

Power supply pin

Analog power-on sequence of A/D converter

Notes on Handling Devices

Be sure that the maximum rated voltage is not exceeded (latchup prevention).

A latchup may occur on a CMOS IC if a voltage higher than Vcc or lower than Vss is applied

to an input or output pin other than medium-to-high voltage pins. A latchup may also occur if

a voltage higher than the rating is applied between Vcc and Vss. A latchup causes a rapid

increase in the power supply current, which can result in thermal damage to an element.

Take utmost care that the maximum rated voltage is not exceeded.

When turning the power on or off to analog circuits, be sure that the analog supply voltages

(AVcc, AVR) and analog input voltage do not exceed the digital supply voltage (Vcc).

Try to keep supply voltages stable.

Even within the operation guarantee range of the Vcc supply voltage, a malfunction can be

caused if the supply voltage undergoes a rapid change. For voltage stabilization guidelines,

the Vcc ripple fluctuations (P-P value) at commercial frequencies (50 to 60 Hz) should be

suppressed to "10%" or less of the reference Vcc value. During a momentary change such

as when switching a supply voltage, voltage fluctuations should also be suppressed so that

the "transient fluctuation rate" is 0.1 V/ms or less.

Notes on power-on

To prevent a malfunction in the built-in voltage regulator circuit, secure "50

S (between 0.2 V

and 2.7 V)" or more for the voltage rise time during power-on.

Treatment of unused input pins

An unused pin may cause a malfunction if it is left open. Every unused pin should be pulled

Treatment of A/D converter power pin

When the A/D converter is not used, connect the pins as follows: AVcc =Vcc, AVss = AVR =

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MB90F562P	16-bit Proprietary Microcontrollers

相關(guān)代理商/技術(shù)參數(shù)	參數(shù)描述
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