COM20020I-DZD-TR Standard Microsystems (SMSC), COM20020I-DZD-TR Datasheet - Page 63

• Manufacturer Part Number: COM20020I-DZD-TR
• Manufacturer: Standard Microsystems (SMSC)

Specifications of COM20020I-DZD-TR

• 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
• Pin Count: 28
• Lead Free Status / RoHS Status: Compliant

5Mbps ARCNET (ANSI 878.1) Controller with 2K x 8 On-Chip RAM
Datasheet
SMSC COM20020I Rev D
nTXEN
nPULSE2
nPULSE1
RXIN
Note: Use Only 2.5 Mbps
t1
t2
t3
t4
t5
t6
t7
t8
nPULSE1, nPULSE2 Pulse Width
nPULSE1, nPULSE2 Period
nPULSE1, nPULSE2 Overlap
Beginning of Last Bit Time to nTXEN High
RXIN Active Pulse Width
nTXEN Low to nPULSE1 Low
RXIN Period
RXIN Inactive Pulse Width
t4
Figure 8.11 - Normal Mode Transmit or Receive Timing
Parameter
t6
t1
(These signals are to and from the hybrid)
t3
DATASHEET
t1
Page 63
t7
t2
t8
t2
min
850
250
-10
10
20
100
400
400
100
typ
0
(400 nS BIT TIME)
LAST BIT
max
t5
+10
950
350
units
nS
nS
nS
nS
nS
nS
nS
nS
Revision 12-05-06