Document Number: 002-04713 Rev.*A
Page 33 of 65
MB96640 Series
• 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 sufficient to operate the Power reset.
• The DEBUG I/F pin has only a protective diode against VSS. Hence it is only permitted to input a negative clamping current
(4mA). For protection against positive input voltages, use an external clamping diode which limits the input voltage to
maximum 6.0V.
• Sample recommended circuits:
*5: The maximum permitted power dissipation depends on the ambient temperature, the air flow velocity and the thermal
conductance of the package on the PCB.
The actual power dissipation depends on the customer application and can be calculated as follows:
P
D
= P
IO
+ P
INT
P
IO
= Σ (V
OL
I
OL
+ V
OH
I
OH
) (I/O load power dissipation, sum is performed on all I/O ports)
P
INT
= V
CC
(I
CC
+ I
A
) (internal power dissipation)
I
CC
is the total core current consumption into V
CC
as described in the “DC characteristics” and depends on the selected operation
mode and clock frequency and the usage of functions like Flash programming.
I
A
is the analog current consumption into AV
CC
.
*6: Worst case value for a package mounted on single layer PCB at specified T
A
without air flow.
*7: Write/erase to a large sector in flash memory is warranted with T
A
≤ + 105°C.
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.
V
CC
R
+B input (0V to 16V)
Limiting
resistance
Protective diode
P-ch
N-ch