Datasheet

MC68HC908GR60A • MC68HC908GR48A • MC68HC908GR32A Data Sheet, Rev. 5
Freescale Semiconductor 277
Chapter 20
Electrical Specifications
20.1 Introduction
This section contains electrical and timing specifications.
20.2 Absolute 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 20.5 5.0-Vdc 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
).
Characteristic
(1)
1. Voltages referenced to V
SS
Symbol Value Unit
Supply voltage
V
DD
–0.3 to + 6.0 V
Input voltage
V
In
V
SS
– 0.3 to V
DD
+ 0.3
V
Maximum current per pin excluding those specified below I ± 15 mA
Maximum current for pins PTC0–PTC4
I
PTC0–PTC4
± 25 mA
Maximum current into V
DD
I
mvdd
150 mA
Maximum current out of V
SS
I
mvss
150 mA
Storage temperature
T
stg
–55 to +150 °C