Freescale Semiconductor MC68HC908MR32 Manual Do Utilizador
MC68HC908MR32 • MC68HC908MR16 Data Sheet, Rev. 6.1
Freescale Semiconductor
265
Chapter 19
Electrical Specifications
Electrical Specifications
19.1 Introduction
This section contains electrical and timing specifications.
19.2 Absolute Maximum Ratings
Maximum ratings are the extreme limits to which the microcontroller unit (MCU) can be exposed without
permanently damaging it.
permanently damaging it.
NOTE
This device is not guaranteed to operate properly at the maximum ratings. For guaranteed operating
conditions, refer to
conditions, refer to
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
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
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
Input high voltage
V
HI
V
DD
+ 4 maximum
V
Maximum current per pin excluding V
DD
and V
SS
I
±25
mA
Storage temperature
T
STG
–55 to +150
°C
Maximum current out of V
SS
I
MVSS
100
mA
Maximum current into V
DD
I
MVDD
100
mA