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.
Table 22-1. Absolute Maximum Ratings
Characteristic(1)
Supply voltage
Symbol
Value
Unit
VDD
–0.3 to +6.0
V
Input voltage
All pins (except IRQ1)
IRQ1 pin
VSS–0.3 to VDD +0.3
VSS–0.3 to 8.5
VIN
V
V
Maximum current per pin excluding
I
25
mA
VDD and VSS
Maximum current out of VSS
Maximum current into VDD
IMVSS
IMVDD
TSTG
100
100
mA
mA
°C
Storage temperature
–55 to +150
1. Voltages referenced to VSS
.
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 and V
be constrained to the
IN
OUT
range V ≤ (V or V
) ≤ V . Reliability of operation is enhanced if
SS
IN
OUT
DD
unused inputs are connected to an appropriate logic voltage level (for
example, either V or V .)
SS
DD
MC68HC908AP Family Data Sheet, Rev. 4
Freescale Semiconductor
297
FREESCALE [ Freescale ]
