Datasheet

MC68HC908AP Family Data Sheet, Rev. 4
Freescale Semiconductor 297
Chapter 22
Electrical Specifications
22.1 Introduction
This section contains electrical and timing specifications.
22.2 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 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
.)
Table 22-1. Absolute Maximum Ratings
Characteristic
(1)
1. Voltages referenced to V
SS
.
Symbol Value Unit
Supply voltage
V
DD
–0.3 to +6.0 V
Input voltage
All pins (except
IRQ1)
IRQ1 pin
V
IN
V
SS
–0.3 to V
DD
+0.3
V
SS
–0.3 to 8.5
V
V
Maximum current per pin excluding
V
DD
and V
SS
I ±25 mA
Maximum current out of V
SS
I
MVSS
100 mA
Maximum current into V
DD
I
MVDD
100 mA
Storage temperature
T
STG
–55 to +150 °C