91C94 datasheet(91/120 Pages) SMSC

91 / 120 page

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 ............................................................VCC + 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

COMMENTS

I Type Input Buffer

Low Input Level

High Input Level

VILI

VIHI

2.0

0.8

TTL Levels

IS Type Input Buffer

Low Input Level

High Input Level

Schmitt Trigger Hysteresis

VILIS

VIHIS

VHYS

2.2

250

0.8

Schmitt Trigger

ICLK Input Buffer

Low Input Level

High Input Level

VILCK

VIHCK

3.0

0.4

91C94 датащи(PDF) 91 Page - SMSC Corporation

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