Datasheet

MC68HC908GZ60 • MC68HC908GZ48 • MC68HC908GZ32 Data Sheet, Rev. 6
Freescale Semiconductor 315
Chapter 21
Electrical Specifications
21.1 Introduction
This section contains electrical and timing specifications.
21.2 Absolute Maximum Ratings
Maximum ratings are the extreme limits to which the microcontroller unit (MCU) can be exposed without
permanently damaging it.
NOTE
This device is not guaranteed to operate properly at the maximum ratings.
Refer to 21.5 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