COM20022I3V-HD SMSC, COM20022I3V-HD Datasheet - Page 73
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COM20022I3V-HD
Manufacturer Part Number
COM20022I3V-HD
Description
Network Controller & Processor ICs ARCNET Contrllr
Manufacturer
SMSC
Datasheet
1.COM20022I3V-HD.pdf
(83 pages)
Specifications of COM20022I3V-HD
Data Rate
10 Mbps
Supply Voltage (max)
3.465 V
Supply Voltage (min)
3.135 V
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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10 Mbps ARCNET (ANSI 878.1) Controller with 2Kx8 On-Board RAM
Datasheet
SMSC COM20022I 3V
(Internal Clk)
nPULSE2
nPULSE1
nTXEN
RXIN
Above values are for 2.5 Mbps.
Other Data Rates are shown below.
T
*t5, t6 = T
*t2, t7, t10 = T
*t3, t11 = T
**t9 =
**t13 =
DR
t1
t2
t3
t4
t5
t6
t7
t8
t9
t13
t10
t11
t12
is the Data Rate Period
4
7
4
5
(These signals are to and from the differential driver or the cable)
x T
Beginning Last Bit Time to nTXEN High**
Figure 8.14
nPULSE2 High to nTXEN Low
nPULSE1 Pulse Width
nPULSE1 Period
nPULSE2 Low to nPULSE1 Low
nPULSE2 High Time
nPULSE2 Low Time
nPULSE2 Period
nPULSE2 High to nTXEN High
(First Rising Edge on nPULSE2 after Last Bit Time)
nTXEN Low to first nPULSE1 Low**
RXIN Active Pulse Width
RXIN Period
RXIN Inactive Pulse Width
x T
DR
t1
DR
DR
/4
DR
DR
+/- 50 nS
+/- 50 nS
/2
t9
- Backplane Mode Transmit or Receive Timing
t4
t10
Parameter
DATASHEET
t11
t2
t5
Page 73
t12
t7
t3
t6
(400 nS BIT TIME)
min
-25
650
-25
450
-25
10
20
LAST BIT
200*
400*
200*
400*
100*
100*
200*
typ
t13
max
750
550
50
50
50
units
nS
nS
nS
nS
nS
nS
nS
nS
nS
nS
nS
nS
nS
t8
Revision 02-27-06
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