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COM20020ILJP 데이터시트(PDF) 18 Page - Microchip Technology

부품명 COM20020ILJP
상세설명  5Mbps ARCNET (ANSI 878.1) Controller with 2K x 8 On-Chip RAM
PDF  72 Pages
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제조업체  MICROCHIP [Microchip Technology]
홈페이지  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

COM20020ILJP 데이터시트(HTML) 18 Page - Microchip Technology

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5Mbps ARCNET (ANSI 878.1) Controller with 2K x 8 On-Chip RAM
Datasheet
Revision 12-05-06
Page 18
SMSC COM20020I Rev D
DATASHEET
Figure 5.1 – Multiplexed, 8051-Like Bus Interface with RS-485 Interface
RXIN
nPULSE
nPULSE
TXEN
GND
+5V
100
BACKPLANE
FIGURE A
RXIN
nPULSE
FIGURE B
Receive
HFD3212-
2
+5V
7
6
Transmitte
HFE4211-
+5V
3
2 Fiber
(ST
2
6
7
NOTE: COM20020 must be in backplane mode
AD0-
nINT1
RESET
nRD
nWR
A15
AD0-AD2, D3-
nCS
nRESET
nRD/nD
nWR/DI
nINTR
A2/BAL
ALE
XTAL1
XTAL2
GND
RXIN
nPULSE
nPULSE
nTXEN
8051
COM20020ID
Differential
Configuratio
Media
may be
with Figure A, B or
*
75176B or
Equiv.
A0/nMU
27 pF
27 pF
XTAL2
XTAL1
20 MHz
XTAL



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