COM20022V-HT 데이터 시트보기 (PDF) - SMSC -> Microchip

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COM20022V-HT

10Mbps ARCNET controller with 2Kx8 on-board RAM

SMSC -> Microchip 

OPERATIONAL DESCRIPTION

MAXIMUM GUARANTEED RATINGS*

Operating Temperature Range ................................................................................................. -40oC to +85oC

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

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

Positive Voltage on any pin, with respect to ground ......................................................................... VDD+0.3V

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

Maximum VDD ............................................................................................................................................. +7V

*Stresses above those listed may cause permanent damage to the device. This is a stress rating only and

functional operation of the device at these or any other condition above those indicated in the operational

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 or "glitches" 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

VDD=5.0V±10%

COM20022: TA=0oC to +70oC, COM20022I: TA=-40oC to +85oC

PARAMETER

SYMBOL

MIN

TYP

Low Input Voltage 1

VIL1

(All inputs except A2,

XTAL1, nRESET, nRD,

nWR, nREFEX and RXIN)

High Input Voltage 1

(All inputs except A2,

VIH1

2.0

XTAL1, nRESET, nRD,

nWR, nREFEX and RXIN)

Low Input Voltage 2

VIL2

(XTAL1)

High Input Voltage 2

(XTAL1)

VIH2

4.0

Low to High Threshold

VILH

1.8

Input Voltage

(A2, nRESET, nRD, nWR,

nREFEX and RXIN)

High to Low Threshold

VIHL

1.2

Input Voltage

(A2, nRESET, nRD, nWR,

nREFEX and RXIN)

MAX

0.8

1.0

UNIT

COMMENT

V TTL Levels

V TTL Levels

V TTL Clock Input

V

V Schmitt Trigger,

All Values at VDD =

5V

V

59

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