Datasheet

MC68HC812A4 Data Sheet, Rev. 7
Freescale Semiconductor 221
Chapter 18
Electrical Characteristics
18.1 Maximum Ratings
Maximum ratings are the extreme limits to which the MCU can be exposed without permanently damaging
it.
NOTE
This device is not guaranteed to operate properly at the maximum ratings.
Refer to 18.4 DC Electrical Characteristics for guaranteed operating
conditions.
NOTE
This device contains circuitry to protect the inputs against damage due to
high static voltages or electric fields; however, it is advised that normal
precautions be taken to avoid application of any voltage higher than
maximum-rated voltages to this high-impedance circuit. For proper
operation, it is recommended that V
In
and V
Out
be constrained to the range
V
SS
≤ (V
In
or V
Out
) ≤ V
DD
. Reliability of operation is enhanced if unused
inputs are connected to an appropriate logic voltage level (for example,
either V
SS
or V
DD
).
Rating Symbol Value Unit
Supply voltage
V
DD
V
DDA
V
DDX
–0.3 to +6.5 V
Input voltage
V
In
–0.3 to +6.5 V
Maximum current per pin excluding V
DD
and V
SS
I
In
± 25 mA
Storage temperature
T
STG
–55 to +150 °C
V
DD
differential voltage V
DD
–V
DDX
6.5 V