MB95430H Series
DS07–12xxx–1E
25
(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: P00 to P07, P60 to P67, P70 to P76, PF0 and 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
R
Limiting
resistor
Input/Output equivalent circuit