COM20020I-HD Standard Microsystems (SMSC), COM20020I-HD Datasheet - Page 16
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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4.6.4
4.6.5
Revision 12-05-06
Acknowledgements
An Acknowledgement is used to acknowledge reception of a packet or as an affirmative response to FREE
BUFFER ENQUIRIES and is sent by the following sequence:
Negative Acknowledgements
A Negative Acknowledgement is used as a negative response to FREE BUFFER ENQUIRIES and is sent
by the following sequence:
An ALERT BURST
An ACK (ACKnowledgement--ASCII code 86H) character
An ALERT BURST
A NAK (Negative Acknowledgement--ASCII code 15H) character
ALERT BURST
ALERT BURST
DATASHEET
Page 16
5Mbps ARCNET (ANSI 878.1) Controller with 2K x 8 On-Chip RAM
ACK
NAK
SMSC COM20020I Rev D
Datasheet
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