MB90375 查看數據表（PDF） - Fujitsu

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MB90375

(MB90350E Series) 16-bit Proprietary Microcontrollers

Fujitsu 

MB90370/375 Series

• Analog power-on sequence of A/D converter, D/A converter and comparator

The power to the A/D converter, D/A converter and comparator (AVCC, CVCC, AVR, CVRH1, CVRH2 and CVRL)

and analog inputs (AN0 to AN11, VOL1 to VOL3, VSI1 to VSI3, SW1 to SW3, DCIN and DCIN2) must be

turned on after the power to the digital circuits (VCC) is turned on. When turning off the power, turn off the

power to the digital circuits (VCC) after turning off the power to the A/D converter, D/A converter, comparator

and analog inputs. When the power is turned on or off, AVR should not exceed AVCC. And CVRH1, CVRH2

and CVRL should not exceed CVCC. Also, when a pin that is used for A/D analog input is used as an input port,

the input voltage should not exceed AVCC. And when comparator analog input is also used as an input port,

the input voltage should not exceed CVCC. (The power to the analog circuits and the power to the digital circuits

can be simultaneously turned on or off.)

• Caution on Operations during PLL Clock Mode

If the PLL clock mode is selected, the microcontroller attempt to be working with the self-oscillating circuit even

when there is no external oscillator or external clock input is stopped. Performance of this operation, however,

cannot be guaranteed.

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