MB90583CAPF datasheet(80/110 Pages) FUJITSU

80 / 110 page

MB90580C Series

(Continued)

• The value of the limiting resistance should be set so that when the +B signal is applied the input current to

the microcontroller pins does not exceed rated values, either instantaneously or for prolonged periods.

• Note that when the microcontroller drive current is low, such as in the power saving modes, the +B input

potential may pass throughthe protective diode and increase the potential at the VCC pin, and this may affect

other devices.

• Note that if a +B signal is input when the microcontroller power supply is off (not fixed at 0 V) , the power supply is

provided from the pins, so that incomplete operation may result.

• Note that if the +B input is applied during power-on, the power suplly is provided from the pins and the resulting

supply voltage may not be sufficient to operate the power-on reset.

• Care must be taken not to leave the +B input pin open.

• Note that analog system input/output pins other than the A/D input pins (LCD drive pins, comparator inputpins,

etc.) cannot accept

+B signal input.

• Sample recommended circuits

WARNING: Semiconductor devices can be permanently damaged by application of stress (voltage, current,

temperature, etc.) in excess of absolute maximum ratings. Do not exceed these ratings.

•

Input/Output equivalent circuits

P-ch

N-ch

VCC

+B input (0 V to 16 V)

Limiting

resistance

Protective diode

MB90583CAPF Datasheet(PDF) 80 Page - fujitsu semiconductor