COM20019ILJP3V SMSC, COM20019ILJP3V Datasheet - Page 70
COM20019ILJP3V
Manufacturer Part Number
COM20019ILJP3V
Description
Network Controller & Processor ICs ARCNET Contrllr
Manufacturer
SMSC
Datasheet
1.COM20019I3V-HT.pdf
(70 pages)
Specifications of COM20019ILJP3V
Product
Controller Area Network (CAN)
Number Of Transceivers
1
Data Rate
312.5 Kbps
Supply Voltage (max)
5.5 V
Supply Voltage (min)
3 V
Supply Current (max)
25 mA
Maximum Operating Temperature
+ 85 C
Minimum Operating Temperature
- 40 C
Mounting Style
SMD/SMT
Package / Case
PLCC-28
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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Chapter 12
12.1
In order to properly write software to work with the COM20019I 3V Rev B and C it is necessary to be able to identify the
different revisions of the part.
To identify the COM20019I 3V Revision follow the following procedure:
Rev. 11-07-08
* If the value read from Register-5 is 0x80 then the part is a COM20019I 3V Rev B
* If the value read from Register-5 is 0xC0 then the part is a COM20019I 3V Rev C
1.
2.
3.
4.
Write 0x00 to Register-5
Read Register-5
Write 0xC0 to Register-5
Read Register-5*
Software Identification of the COM20019I 3V Rev B and Rev C
The value read from Register-5 must be 0x00.
Appendix C
DATASHEET
Page 70
Cost Competitive ARCNET (ANSI 878.1) Controller with 2K x 8 On-Chip RAM
SMSC COM20019I 3.3V Rev.C
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