MB96300 Series
Preliminary Specication
136
FME/EMDC- 2007-02-12
MB96300_shortspec.fm
PRELIMINARY
*1: Set AVCC and VCC to the same voltage. Make sure that AVCC does not exceed VCC and that the voltage at the
analog inputs does not exceed AVCC when the power is switched on.
*2: If DVCC is powered before VCC, then SMC I/O pin state is undened. To avoid this, we recommend to always
power VCC before DVCC. It is not necessary to set VCC and DVCC to the same value.
*3: VI and VO should not exceed (D)VCC + 0.3 V. VI should not exceed the specied ratings. However if the maximun
current to/from a input is limited by some means with external components, the ICLAMP rating supercedes the VI
rating. Input/output voltages of high current ports depend on DVCC, of other ports on VCC.
*4:
Applicable to all general purpose I/O pins (GP00_0 to GP17_7)
Use within recommended operating conditions.
Use at DC voltage (current)
The +B signal should always be applied a limiting resistance placed between the +B signal and the
microcontroller.
The value of the limiting resistance should be set so that when the +B signal is applied the input current to
the microcontroller pin 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 through the 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 xed 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 supply is provided from the pins and the resulting
supply voltage may not be sufcient to operate the Power reset (except devices with persitant low voltage
reset in internal vector mode).
When using the LCD controller, No +B signal must be applied to any LCD I/O pin (including unused
SEG/COM pins).
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.
P-ch
N-ch
VCC
R
Protective Diode
Limiting
resistance
+B input (0V to 16V)