FDC37C78 Ver la hoja de datos (PDF) - SMSC -> Microchip

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FDC37C78

Floppy Disk Controller

SMSC -> Microchip 

OPERATIONAL DESCRIPTION

MAXIMUM GUARANTEED RATINGS*

Operating Temperature Range ..............................................................................................0oC to +70oC

Storage Temperature Range .............................................................................................. -55o to +150oC

Lead Temperature Range (soldering, 10 seconds).........................................................................+325oC

Positive Voltage on any pin, with respect to Ground .................................................................... VIO+0.3V

Negative Voltage on any pin, with respect to Ground ........................................................................ -0.3V

Maximum VIO ....................................................................................................................................... +7V

Maximum VCC ........................................................................................................................................VIO

*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 - 70°C, Vcc = +3.3 V ± 10%)

PARAMETER

SYMBOL MIN TYP MAX UNITS

I Type Input Buffer

COMMENTS

Low Input Level

High Input Level

IS Type Input Buffer

VILI

VIHI

2.0

0.8

V TTL Levels

V

Low Input Level

High Input Level

Schmitt Trigger Hysteresis

ICLK Input Buffer

Low Input Level

High Input Level

Input Leakage

Low Input Leakage

High Input Leakage

VILIS

VIHIS

VHYS

0.8

V Schmitt Trigger

2.2

V Schmitt Trigger

250

mV

VILCK

VIHCK

2.2

0.4

V

V

IIL

-10

IIH

-10

71

+10

μA VIN = 0

+10

μA VIN = VIO

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