COM20020I-HD Standard Microsystems (SMSC), COM20020I-HD Datasheet - Page 38
![no-image](/images/manufacturer_photos/0/6/632/standard_microsystems__smsc__sml.jpg)
COM20020I-HD
Manufacturer Part Number
COM20020I-HD
Description
Manufacturer
Standard Microsystems (SMSC)
Datasheet
1.COM20020I-HD.pdf
(72 pages)
Specifications of COM20020I-HD
Number Of Transceivers
1
Operating Supply Voltage (max)
5.5V
Operating Supply Voltage (typ)
5V
Operating Supply Voltage (min)
4.5V
Operating Temperature (max)
85C
Operating Temperature (min)
-40C
Operating Temperature Classification
Industrial
Mounting
Surface Mount
Lead Free Status / RoHS Status
Not Compliant
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Revision 12-05-06
BIT
1,0
Reconfiguration Timer
1, 0
BIT NAME
RCNTM1,0
SYMBOL
DATASHEET
These bits are used to program the reconfiguration timer as a
function of maximum node count. These bits set the time out period
of the reconfiguration timer as shown below. The time out periods
shown are for 5 Mbps.
RCNTM1
0
0
1
1
Note*: The node ID value 255 must exist in the network for 26.25
Page 38
mS timeout to be valid.
RCNTM0
0
1
0
1
5Mbps ARCNET (ANSI 878.1) Controller with 2K x 8 On-Chip RAM
DESCRIPTION
Time Out Period
420 mS
105 mS
52.5 mS
26.25 mS*
Max Node Count
Up to 255 nodes
Up to 64 nodes
Up to 32 nodes
Up to 16 nodes
SMSC COM20020I Rev D
Datasheet
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