COM20020I3V-DZD SMSC, COM20020I3V-DZD Datasheet - Page 18

• Manufacturer Part Number: COM20020I3V-DZD
• Description: IC CTRLR LAN UNIV 2KX8 28-PLCC
• Manufacturer: SMSC
• Series: ARCNETr

Specifications of COM20020I3V-DZD

• Controller Type: ARCNET Controller
• Interface: Differential
• Voltage - Supply: 4.5 V ~ 5.5 V
• Current - Supply: 20mA
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 28-PLCC
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 638-1002-5

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