91C94 Datasheet, PDF (91/120 Pages) SMSC Corporation – ISA/PCMCIA SINGLE CHIP ETHERNET CONTROLLER WITH RAM

OPERATIONAL DESCRIPTION
MAXIMUM GUARANTEED RATINGS*
Operating Temperature Range _{..........................................................................................} 0°C to 70°C
Storage Temperature Range _{......................................................................................} -55°C to +150°C
Lead Temperature Range (soldering, 10 seconds) _{...................................................................} +325°C
Positive Voltage on any pin, with respect to Ground _{............................................................V}CC + 0.3V
Negative Voltage on any pin, with respect to Ground _{...................................................................} -0.3V
Maximum VCC _{...............................................................................................................................} +7V
*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.
DC ELECTRICAL CHARACTERISTICS (TA = 0°C to 70°C, VCC = +5.0 V ± 10%)
PARAMETER
SYMBOL MIN TYP MAX UNITS
I Type Input Buffer
COMMENTS
Low Input Level
VILI
0.8
V TTL Levels
High Input Level
VIHI
2.0
V
IS Type Input Buffer
Low Input Level
VILIS
0.8
V Schmitt Trigger
High Input Level
VIHIS
2.2
V Schmitt Trigger
Schmitt Trigger Hysteresis
VHYS
250
mV
ICLK Input Buffer
Low Input Level
VILCK
0.4
V
High Input Level
VIHCK
3.0
V
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