COM20020I-HD SMSC, COM20020I-HD Datasheet - Page 62
COM20020I-HD
Manufacturer Part Number
COM20020I-HD
Description
Network Controller & Processor ICs ARCNET Contrllr
Manufacturer
SMSC
Datasheet
1.COM20020I-HT.pdf
(69 pages)
Specifications of COM20020I-HD
Product
Controller Area Network (CAN)
Number Of Transceivers
1
Data Rate
5 Mbps
Supply Voltage (max)
5.5 V
Supply Voltage (min)
4.5 V
Supply Current (max)
40 mA
Maximum Operating Temperature
+ 85 C
Minimum Operating Temperature
- 40 C
Mounting Style
SMD/SMT
Package / Case
TQFP-48
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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SMSC COM20020I 3.3V Rev.E
5Mbps ARCNET (ANSI 878.1) Controller with 2K x 8 On-Chip RAM
XTAL1
nRESET
Note*: Input clock frequency must be 20 MHz ( 100ppm or better) to use the internal Clock Multiplier.
Note*:
Note**: T
Note***: When the power is turned on, t1 is measured from stable XTAL
t5
t1
t2
t3
t4
t1
t2
nINTR
t
4
oscillation after V
and t
T
XTL
4.0V
DR
Input Clock High Time
Input Clock Low Time
Input Clock Period*
Input Clock Frequency*
Frequency Accuracy*
nRESET Pulse Width***
nINTR High to Next nINTR Low
is period of Data Rate (i.e. at 2.5 Mbps, T
is period of external XTAL oscillation frequency.
5
are applied to crystal oscillaton.
Parameter
Parameter
t1
DD
Figure 25 – TTL Input Timing On XTAL1 Pin
t1
Figure 26 – Reset And Interrupt Timing
was over 3V.
1.0V
DATASHEET
t2
EF = 0
EF = 1
Page 62
+ -
t2
DR
= 400 nS)
min
T
-200
5T
t3
DR
20
20
50
10
min
4T
XTL
**/2
XTL
*
*
typ
typ
100
max
200
20
max
50% of V
units
MHz
ppm
nS
nS
nS
units
DD
Revision 09-11-06
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