COM20019(2000) Ver la hoja de datos (PDF) - SMSC -> Microchip

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COM20019
(Rev.:2000)

Low Cost ARCNET (ANSI 878.1) Controller with 2K x 8 On-Board RAM

SMSC -> Microchip 

XTAL1

XTAL2

D0-D7

A0

A1

A2

A7

nRES

nIOS

R/nW

nIRQ1

6801

COM20019

D0-D7

A0/nMUX

A1

A2/BALE

nCS

nRESET

nRD/nDS

nWR/nDIR

nINTR

XTAL1

RXIN

TXEN

nPULSE1

nPULSE2

GND

75176B or

Equiv.

XTAL2

Differential Driver

Configuration

* Media Interface

may be replaced

with Figure A or B.

27 pF

20MHz

XTAL

27 pF

FIGURE 3 - NON-MULTIPLEXED, 6801-LIKE BUS INTERFACE WITH RS-485 INTERFACE

15

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