
SMSC DS – SP37E760
Page 59
Rev. 04/13/2001
8
OPERATIONAL DESCRIPTION
8.1 MAXIMUM GUARANTEED RATINGS
Operating Temperature Range...........................................................................................................................0
o
C to +70
o
C
Storage Temperature Range............................................................................................................................-55
o
to +150
o
C
Lead Temperature Range (soldering, 10 seconds).....................................................................................................+325
o
C
Positive Voltage on any pin, with respect to Ground......................................................................................................+5.5V
Negative Voltage on any pin, with respect to Ground......................................................................................................-0.3V
Maximum V
CC
.....................................................................................................................................................................+5V
*Stresses above those listed above could cause permanent damage to the device. This is a stress rating only and
functional operation of the device at any other condition above those indicated in the operation sections of this
specification is not implied.
Note:
When powering this device from laboratory or system power supplies, it is important that the Absolute
Maximum Ratings not be exceeded or device failure can result. Some power supplies exhibit voltage spikes on their
outputs when the AC power is switched on or off. In addition, voltage transients on the AC power line may appear on
the DC output. If this possibility exists, it is suggested that a clamp circuit be used.
8.2 DC ELECTRICAL CHARACTERISTICS
(T
A
= 0°C - 70°C, V
cc
= +3.3 V ± 10%)
Table 54 – DC Electrical Characteristics
PARAMETER
SYMBOL
MIN
TYP
MAX
UNITS
COMMENTS
I Type Input Buffer
Low Input Level
High Input Level
V
ILI
V
IHI
V
ILIS
V
IHIS
V
HYS
V
ILCK
V
IHCK
I
IL
I
IH
I
OH
2.0
0.8
V
V
TTL Levels
IS Type Input Buffer
Low Input Level
High Input Level
Schmitt Trigger Hysteresis
2.2
250
0.8
V
V
mV
Schmitt Trigger
Schmitt Trigger
I
CLK
Input Buffer
Low Input Level
High Input Level
2.2
0.4
V
V
Input Leakage
(All I and IS buffers except
PWRGD)
Low Input Leakage
High Input Leakage
-10
-10
+10
+10
μA
μA
V
IN
= 0
V
IN
= V
cc
V
IN
= 0
Input Current
PWRGD
75
150
μA