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ST92F124/F150/F250 - ELECTRICAL CHARACTERISTICS
11 ELECTRICAL CHARACTERISTICS
This product contains devices to protect the inputs
against damage due to high static voltages, how-
ever it is advisable to take normal precautions to
avoid application of any voltage higher than the
specified maximum rated voltages.
For proper operation it is recommended that V
IN
and V
be higher than V
and lower than V
.
Reliability is enhanced if unused inputs are con-
nected to an appropriate logic voltage level (V
DD
or V
SS
).
Power Considerations
. The average chip-junc-
tion temperature, T
J
, in Celsius can be obtained
from:
T
J
=
T
A
+ P
D
x RthJA
Where: T
A
=
Ambient Temperature.
RthJA = Package thermal resistance
(junction-to ambient).
P
D
=
P
INT
+ P
PORT
.
P
INT
=
I
DD
x V
DD
(chip internal power).
P
PORT
=Port power dissipation
(determined by the user)
ABSOLUTE MAXIMUM RATINGS
Notes
:
Stresses above those listed as “absolute maximum ratings“ may cause permanent damage to the device. This is a stress rating only and
functional operation of the device at these conditions is not implied. Exposure to maximum rating conditions for extended periods may affect
device reliability. All voltages are referenced to V
= 0 V.
Note 1:
Pin injection current occurs when the voltage on any pin exceeds the specified range.
Note 2:
Value guaranteed by design.
THERMAL CHARACTERISTICS
Symbol
V
DD
AV
DD
AV
SS
V
IN
V
INOD
V
AIN
T
STG
I
IO
I
INJ
I
TINJ
Parameter
Value
– 0.3 to 6.5
V
SS
to V
DD
+ 0.3
V
SS
– 0.3 to V
DD
+ 0.3
– 0.3 to 6.5
-0.3 to AV
DD
+ 0.3
– 55 to +150
10
(2)
10
(2)
100
(2)
Unit
V
V
Supply Voltage
ADC Reference Voltage
ADC Ground
Input Voltage (all pins except pure open drain I/O pins)
Input Voltage (pure open drain I/O pins)
Analog Input Voltage (ADC inputs)
Storage Temperature
Load Current
Pin Injection Current - Digital and Analog Inputs
(1)
Absolute sum of all Pin Injection Current in the device
V
V
V
°
C
mA
mA
mA
Symbol
Package
TQFP64
PQFP100
TQFP100
Value
47
28
44
Unit
RthJA
°
C/W
1