MB95220H datasheet(21/58 Pages) CYPRESS

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MB95220H Series

Document Number: 002-07513 Rev. *B

Page 21 of 58

(Continued)

*1: The parameter is based on VSS = 0.0 V.

*2: VI and VO must not exceed VCC+0.3 V. VI must not exceed the rated voltage. However, if the maximum current to/from an input

is limited by means of an external component, the ICLAMP rating is used instead of the VI rating.

*3: Applicable to the following pins: P01 to P07, PG1, PG2, PF0, PF1

• Use under recommended operating conditions.

• Use with DC voltage (current).

• The HV (High Voltage) signal is an input signal exceeding the VCC voltage. Always connect a limiting resistor between the HV

(High Voltage) signal and the microcontroller before applying the HV (High Voltage) signal.

• The value of the limiting resistor should be set to a value at which the current to be input to the microcontroller pin when the HV

(High Voltage) signal is input is below the standard value, irrespective of whether the current is transient current or stationary

current.

• When the microcontroller drive current is low, such as in low power consumption modes, the HV (High Voltage) input potential

may pass through the protective diode to increase the potential of the VCC pin, affecting other devices.

• If the HV (High Voltage) signal is input when the microcontroller power supply is off (not fixed at 0 V), since power is supplied

from the pins, incomplete operations may be executed.

• If the HV (High Voltage) input is input after power-on, since power is supplied from the pins, the voltage of power supply may

not be sufficient to enable a power-on reset.

• Do not leave the HV (High Voltage) input pin unconnected.

• Example of a recommended circuit:

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.

HV(High Voltage) input (0 V to 16 V)

Protective diode

VCC

N-ch

P-ch

Limiting

resistor

Input/Output equivalent circuit

MB95220H Datasheet(PDF) 21 Page - Cypress Semiconductor