MB91F465KB datasheet(66/86 Pages) CYPRESS

66 / 86 page

MB91460K Series

Document Number: 002-04602 Rev. *A

Page 66 of 86

■ The value of the limiting resistor should be set so that the current input to the microcontroller pin does not exceed the rated value at any time , either

instantaneously or for an extended period

, when the B signal is input

■ Note that when the microcontroller drive current is low, such as in the low power consumption modes, the B input potential can increase the potential

at the power supply pin via a protective diode, possibly affecting other devices.

■ Note that if the B signal is input when the microcontroller is off (not fixed at 0 V), power is supplied through the +B input pin; therefore, the

microcontroller may partially operate.

■ Note that if the B signal is input at power-on, since the power is supplied through the pin, the power-on reset may not function in the power supply

voltage.

■ Do not leave B input pins open.

■ Example of recommended circuit :

4. Maximum output current is defined as the value of the peak current flowing through any one of the corresponding pins

5. Average output current is defined as the value of the average current flowing through any one of the corresponding pins for a 100 ms period.

6. Total average output current is defined as the value of the average current flowing through all of the corresponding pins for a 100 ms period.

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.

P-ch

N-ch

VCC

Input/output equivalent circuit

B input (0 V to 16 V)

Limiting

resistor

Protective diode

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